Gm Airbag Sensor Ohm Readings

Fault code 1221 Airbag crash sensor -Fixed - posted in DIY and How Tos: Hi all, Just a quick How To I had a airbag light on the dash. 30 K ohms 86 degrees F = 27. A bad reading indicates that the crankshaft sensor isn't working right. The scan tool should read between 100 and 500 RPM. If you do not test the refrigerator thermistor with it in a cup of water you will not know what the ohm reading should be. • For additional diagnostic information, refer to DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 in the appropriate SI Document. 8 ohm, replace ignition coil. Don't go to Vauxhall. Even though they are not part of the deployment loop, make sure to either PULL THE SDM or SIR FUSE (probably says SIR but might say SDM). False readings can make a bad pump seem okay. 4 find the sensor is in fact open circuited after get access to the wheel speed sensor and a quick resistance. Lo and behold, problem solved. the service manual for sensor and other component locations. The Ohms value should read approximately 9400 to 9500 Ohms. Typical MAP sensor used on many post' 96 GM cars. Indeed, testing the ABS sensor is very important as this system plays a crucial role for the entire function of your car. It also has a seat belt tension sensor that allows the OCS to interpret the pressure created when a child seat is fitted. Notes: For the pressure control (PC) solenoid: You need a minimum 4. Each code is two digits and is counted by quick flashes and pauses. The coolant temp sensor reading is one of the criteria used by the ECM/PCM to determine how much fuel to inject. The air bag simulator is a 2 ohm resistor used to simulate an air bag connection to the system. 1L had a problem where a few. It'll crank but not start. A note about vehicle alterations by independent suppliers: This catalog shows. Indeed, testing the ABS sensor is very important as this system plays a crucial role for the entire function of your car. It pops off when you get in an accident. And thanks for reading Autoblog. Attach the ohmmeter's black wire to a grounded surface, such as the vehicle's negative battery terminal. It was the world's first electromechanical automotive airbag system. The idea of a pretensioner is to tighten up any slack in the belt webbing in the event of a crash. Disconnecting the battery for a few hours and reconnecting it does not clear the airbag fault codes on Chevrolet vehicles. Re:Weird Temperature readings/ Real temp sensor movement interpritation 2014/08/11 14:11:16 There is no way you can control the temperature of the second core and since this is a regular behaviour of you second core to have 2 to 3 degrees higher temperature, it’s nothing to worry about. In many cars, the computer sends out a bias voltage of 0. My son has a 2003 Saab 9-5. Lo and behold, problem solved. If you guessed the crankshaft position sensor, then you would be correct. Camshaft Position Sensor (CMP) OPERATION. Automobile Repair Tip: Many 1990's thru 2008 GM cars have "Anti-Theft" ignition key pellet resistors. In order to check your coolant temperature sensor we would need the table of ECT resistance for a certain temperature for that sensor. Sometimes it will come on and stay on, other times it will go off after a while. Most high-level output models have internal shunt calibration circuits as a standard feature to allow easy setup of the sensor to the data system. 38 Ford 2009+ airbag sensors with MAC and Infineon processors programming by OBDII software. I then took the sensor off the vehicle and proceeded to ohm test it. Ohms on front wheel sensors? - Answered by a verified GM Mechanic. Most GM service manuals have a pretty ironclad method of testing the MAP with a multimeter. Just like the ML619, the AD610 supports reading and clearing of ABS and SRS trouble codes. SOURCE: find front airbag sensor 2003 Sierra The front crash sensor is on or near the radiator support under the hood, it is a little square box, one question why do you think it has a problem? it is a mechanical device, a steel ball bearing sitting in an inverted cone, when you crash the ball bearing breaks free of the magnet, that breaks a connection and signals the airbag monitor to fire. Please keep in mind when setting up and reading the meter that "K" means thousands of Ohms. When the battery voltage is low in the airbag, code 12 appears. TEST 7: IAT Sensor Resistance Test (P0113). Let it dry? Hope it can be reset?. For 2013+ Ford modules with Infineon processor use S5. I too had voltage from the speed sensor on the trans, however, the ohm reading was zero with the sensor out of the truck. Count the flashes on the airbag dash light. The temperature sensor measures the engine temperature and the ECM uses. (The output of the LHF wheel speed sensor was flat line at the time of driving. You can do it at home using a digital multimeter and a cooking thermometer. *rm updated 5/17/11. If you have ABS, the fault is often the ABS sensor. A TCU generally uses sensors from the vehicle as well as data provided by the engine control unit (ECU) to calculate how and when to change gears in the vehicle for optimum performance, fuel economy and shift quality. The resistors are about 1. 6 million vehicles for airbag-software problems. at the same time, do not try to force a heated o2 sensor into operation. Motorists complain Subaru Forester passenger air bag sensor not working. 4 ohms that I see through the air bag. ABS Sensor. Subaru Outback owners have reported 76 problems related to air bag light on (under the air bag category). The gas generator in a Miata is filled with sodium azide as most inflators. A transmission control unit or TCU is a device that controls modern electronic automatic transmissions. The idea of a pretensioner is to tighten up any slack in the belt webbing in the event of a crash. The difference of which is the. But, there are specifics to this sensor. The "k" symbol stands for 1,000. /2 5% tolerance resistors) you can fully remove the pressure system and still have the air bag working w/o lights. Start the engine and observe the voltmeter reading. In this circuit with a gauge intended to read a variable resistor to ground, with full ground being 0 ohms and 30 ohms being the top of the ohm range. If it is ~zero, your wiring is still shorted. Today I'll be showing you how to test the primary or upstream O2 sensor in a 2004 Chevy Silverado with a 5. Makes sense as this has a vortec head crate motor. 13=Air Bag Circuit Shorted to Ground 14=Primary Crash Sensor Circuit Shorted to Ground 21=Safing Sensor Not Mounted to Vehicle Properly 22=Safing Sensor Output Shorted to Battery Voltage 23=Safing Sensor Circuit Input Feed/Return Circuit Open 24=Safing Sensor Output Feed/Return Circuit Open 32 Driver Side Air Bag Circuit High Resistance or Open. 696, [rounds up to 14. I got no ohm reading from yellow wire. Get fast, Free Standard Shipping on orders over $99 from Summit Racing--no shipping, handling, or rural fees! Exclusions apply. The engine coolant temperature sensor-(ECT) is a sensor that is used to monitor the temperature of the engine’s coolant. If you do measure an active sensor with a meter, it will produce a reading around 3. Just noticed you have a HD, some HDs came with ONE sensor, set in the center, and the code for a single sensor is the same as for a right front sensor. The AIR BAG fuse applies system voltage to the Ignition 1 inputs, terminals A9 and A10. ) it probably will be in the K ohms. No Communication with Airbag Module + Multiple Solutions From time to time, I'll get asked about an issue where the customer has no communication with the airbag. The Multimeter DID NOT record a resistance. 01 ohms resistance in the starter cable. The (MAF) mass air flow sensor measures the volume and density of the air entering the engine. The passenger side airbag will cost at least $300 to $800. Looking for the resistance readings into both airbag crash sensors for a 2005 Chevy Tahoe 5. MX-Sensors (315 & 433MHz), the programmable universal sensors, offered in Clamp-in and Snap-in options, are both smart and efficient specially built for sensor replacement to perform like OE sensors, in terms of signal interval, durability and functionality, supporting up 90% of North American, European and Asian vehicles and covering over 98% of all OE sensors on the market. When you are in need of a reliable replacement part for your 2003 Chevy Tahoe to restore it to 'factory like' performance, turn to CARiD's vast selection of premium quality products that includes everything you may need for routine maintenance and major repairs. Print The coolant temperature sending unit is used to operate the temperature gauge. Scan functionality combined with ABS specific Pathfinder Troubleshooting software provides a powerful diagnostic bundle. How to Make a DIY Airbag Tester. NAPA is your trusted source for automotive parts, accessories & know how for your car, truck or SUV. Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. Your order may experience a longer processing time. A good sesnor should have a reading between 1,100 to 1,300 ohms. 2Ω TORQUE CONVERTER REGULATOR –TCC Resistance @: (temperature will affect resistances)(Readings at +/- 7%) 20°C = 10Ω 90°C = 12. Intake Air Temperature (IAT) sensor connector terminal identification — 1994–96 models ; Compare the resistance reading with the accompanying chart. The vehicle could sway or wander at highway speeds. Making the wrong assumption will cause trouble for you, the DIY-Tech or auto-man-woman. 4L car or mini-van. So, I pulled the tank (when empty) and removed the fuel sending unit/fuel pump assembly. If the reading is below 12K ohms, the steering wheel speed sensor is operating as designed. A code 15 indicates the coolant temp reading is lower than expected. 4498 Our Services SRS Airbag Module Reset We offer crash data removal from SRS airbag …. Right now there is a huge issue with fretting corrosion, not just with GM but since that's what I see all day usually, I'll stick with them. airbag light on, check airbag in DIC, code B0026 on scan tool, connectors c221 and c222 read zero ohms resistance on my Fluke (input side to output side while connected). You only need two of three potentiometer leads for airbag testing. there should be a note on installation tht the sending unit needs to be installed with electrical connection up so fluid connection is down. I could find some values from Mercruiser Service Manuals, Teleflex and Faria documents, etc, listed below, but, as you can see, those values are rough, sparse and in the wide range. The new settings are Coolant Temp Sensor CLT Set Bias Resistor setting to 1950 Temp F/C Resistance In Ohms. In this reading. The MAF sensor receives a reference voltage from the PCM, and sends back a voltage to the PCM based on the volume of air it measures. 3 graph the left and right front wheel sensors from the live data menu with NT630. A MAP sensor continually compares atmospheric absolute pressure to the intake manifold vacuum and sends the appropriate voltage signal to the vehicle's computer. I am including a link to a forum discussion on the matter with a possible solution to the pump reading problem and if you go all the way down a possible easy access to the pump assembly. Harley fuel senders are typically the Ford 10 (73 ohms empty – 10 ohms full) or the Stewart Warner/Sun 33 (240 ohms empty and 33 ohms full). So tonight I took off the both the front sensors and took an ohm reading for both of them, right side has a resistance of 375. 7L GM vehicle is not that hard to do. Applications using a turbo or supercharger may have a 2- or 3-bar MAP sensor. Wire Type Bypass Resistors. Don't be confused by other wiring harnesses that may lead down to the wheel such as the brake pad wear sensor. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays are processed on the next business day. As you move the throttle does the resistance change smoothly? Are you trying to test this with the sensor off the car?. GM: on 2011 chevy hhr and malibu vehicles there is an internal computer fault which can cause the air bag light to come on. The SRS airbag is tested by the car’s computer every time the vehicle is switched on. If the Ohm meter reading for the sensor and extension cable is not between 980 - 2350 Ohm (. If you have an ohm meter I can give you the specifications for it. 1 GM EFI ignition system. Make sure that there is good mechanical contact between the resistor lead and the copper of the black wire. (although you'll be able to tell if it's completely dead. 99! [ Login ] News | Home > Shop > Sensors > Temp Sensors > GM Delphi / Packard Fluid Temperature Sensor ( ECT / CLT / TFT ) or Coolant Temperature Sensor # 15326386 / 25036979. 4 volts and deployment loop resistance is 6 ohms or greater for 500 milliseconds. Turn the ignition switch to the OFF position. Diagnosing Codes: P0106, P0107, P0108 and 33 and 34. CASE 1: Your multimeter registered the indicated voltages as you applied vacuum: This means that the manifold absolute pressure (MAP) sensor is good and not the cause of the MAP sensor code or problem on your GM 2. : General Motors pressured a Swedish airbag supplier in the 1990s to match cheaper prices from its rival Takata, despite warnings that Takata’s inflators were unsafe. For a properly adjusted burner, during operation, the cad cell resistance should be approximately 300-1000 ohms, but not more than 1600 ohms. GM, Saturn, EDR, event data recorder, GM air bag black box deployment crash data recovery, listed GM airbag technical information. I am including a link to a forum discussion on the matter with a possible solution to the pump reading problem and if you go all the way down a possible easy access to the pump assembly. Using a digital voltmeter, you can fix problems like no start, intermittent shorts by measuring the voltages shown in the DLC pin terminals. To get this information in degrees, you can use a scanning tool. I'm about to remove my passenger airbag to install an larger glovebox from the '94 Jetta. Let's try one more example; convert the meter reading of 1. QUICK START GUIDE DAKOTA DIGITAL HDX INSTRUMENT SYSTEM This guide is designed to get you up and running quickly with the minimal amount of options installed. Keep in mind that it may not be exact. The MAP should read 4. Shown below is a 2004 Mazda bus wiring diagram for the DLC connector. It is a two wire negative temperature coefficient (NTC) sensor. After the engine comes to operating temperature, the PCM will monitor the oxygen sensor and correct the air/fuel ratio from the sensor's readings. This means the sensor is designed to read up to 1-bar of atmospheric pressure difference. Replace the defective sensor. This could end up affecting your transmission, speedometer, ABS, power steering, and your cruise control. The sending unit reading should be in the 30 to 55 ohm range, depending on the operating temperature, speed and oil viscosity. The process of eliminating or identifying the. potentiometer-style throttle position sensor (almost all three-terminal TP sensors). I don't see this. Welcome to airbagdoc. Car battery voltage must be at least 12 volts. The engine coolant temperature sensor-(ECT) is a sensor that is used to monitor the temperature of the engine’s coolant. To check the MAF sensor's voltage signal and frequency, connect a voltmeter across the MAF voltage signal wire and ground wire. Remove the sensor retaining bolt. 4 ohms seem strange, unless you mean kilo-ohms. Replaced front airbag sensor to correct the problem. Choose top quality brands AC Delco, Standard Motor Products. With the battery disconnected and the vehicle battery cables shorted together use an ohm meter to locate if the srs door wires are open. There's also a listing of the cars there but the ability to look up cars by vehicle. TEST 7: IAT Sensor Resistance Test (P0113). For a properly adjusted burner, during operation, the cad cell resistance should be approximately 300-1000 ohms, but not more than 1600 ohms. Bank 1 refers to the side of the engine that has the #1 cylinder. 51 complaints detail instances when the occupant detection systems turned off the front passenger air bag when a person was. Carprog Full Perfect Online Version Firmware V8. On some MAF sensors, this reading should be 2. This is what is known as closed loop operation. Iprog+ Iprog Pro Programmer V77 Support IMMO + Mileage Correction + Airbag Reset till the year 2019 Replace Carprog Full Digiprog III Tango,iProg+ Programmer is a multifunction tool, buy iProg+ Programmer on chinaobd2. This means the sensor is working and its sending a signal back to the ABS computer. Looking for the resistance readings into both airbag crash sensors for a 2005 Chevy Tahoe 5. When the brake light comes on, most people go to the mechanic. 3 graph the left and right front wheel sensors from the live data menu with NT630. B1S2 had a reading of 4 ohms and B2S2 had a reading of 8 ohms. Good luck with this, but I worry about the liability can of worms you're opening. When testing roll the test leads in the terminal to ensure proper connection for a correct reading. The “ SPD Pulses x ” reading should start incrementing as you travel, indicating the pulses received from the speed sensor or VSS. Low coolant temperature produces a high resistance (100,000 ohms at -40°F. Vehicle Speed Sensor Testing. Ford airbag fault code B2293 - Cars & Trucks. Locate the electrical connector from a particular the wheel speed sensor which is near the frame in the wheel well in most cases. If there are issues with the coolant temperature readings, deal with them ASAP because an overheated engine can definitely cause the engine to knock. Tech B says that a good antenna should give a reading of about 500 ohms when tested with an ohmmeter between the center antenna wire. There's also a listing of the cars there but the ability to look up cars by vehicle. In googling around I found this excerpt from US patent 6597181:. Each code is two digits and is counted by quick flashes and pauses. Specific to:. Measuring resistance in each sensor is a good way to tell if there is a short. AIRBAG DTCs AND DEFINITIONS • Get access to the airbag DTCs and definitions related to the airbag warning light for most 1996 and newer GM, Ford, Chrysler, Honda, Hyundai, Nissan and Toyota vehicles. The tiny thing that keeps your car working, often falls prey to regular wear and tear, and therefore must be taken care of. The 2 needles can now plug in the airbag connector and the 2-ohm resistor will "fake" the airbag. Different automobile and gauge manufacturers use different ohm ranges to correctly operate their gauges. A DVOM or analog Ohmmeter is required. Resistors fix for airbag light - posted in Performance and Technical: MkIV with airbag light on. The task of the camshaft sensor is to work with the crankshaft sensor to define the exact position of the crankshaft drive. This is what is known as closed loop operation. Average repair cost is $250 at 70,450 miles. The other simple measurement is to unplug the unit (without removing it from its location behind the engine on top of the transmission housing). It'll crank but not start. And thanks for reading Autoblog. That is the way the sensor can sense whether someone is actually sitting or not. Need to replace your GMC Airbag Sensor? Then shop at 1A Auto for a high quality, aftermarket front Airbag Impact Sensor replacement for your GMC at a great price. When I measure the resistance through the connectors, clock spring and short cable to the connectors that plug into the air bag I get a reading of. The dashboard airbag light backup is a buzzer mounted in the airbag computer, it is not the seat belt buzzer. To test resistance, you touch the probes to #1 and #2. How To Fix Your Airbag Light Without Having It Blow Up In Your Face bad on a modern car are the passenger’s occupancy sensor and the clock spring. What a PITA. Because the air bag and all the associated wiring checked good, the manual said the crash sensor is bad but only by elimination. The dealer said there was a short to ground in the right side airbag sensor wiring. Shop Source One Auto Parts. A lot of trouble codes are triggered by resistance being out of spec by very small amounts, less than a couple ohms can make a difference quite often. Sensor operating voltage is less than 5. How to Check a Throttle Position Sensor on your DMM and set the "Range Switch" to the 20,000-Ohm or the 20K Ohm scale. The difference of which is the. 40 Mazda CX-5 and Ford 2013+ airbag sensor programming by OBDII software. These older 3. It is possible that Detroit is slightly above sea level, and you can use 12. Replace sensor and/or extension cable, if necessary. " an improperly deployed air bag will increase the risk of injury to the occupant. 2 ohms 66 Watt resistor; use (4) 25W 2. If you find the oil pressure gauge at 60-80 pounds all the time most likely the oil pressure sender or the wiring has an open circuit. At 110 degrees it was at approximately 1100ohms. This will tell you if the sensor is good or bad, that keeps the airbag light on. The MAP sensor reading on a scanner should read about 1. 3M vehicles to fix air bag software. The address for Dr. No fuel pressure means we need additional tests, as described below. GMPartsOnline. Note: There's a new GM part number for the glow plug controller for pre-2000 trucks. Which means my DVM would NEVER cause an airbag to deploy under my test conditions. When I soldered it back together I got 1300 -1400. 4 Here are some general close-ups of the in-cab fuel tank sending unit. How to read Ford airbag module in car by OBD?. Want Answer 0. 3 ohm resistor (actually three 10 ohm resistors in parallel which is the same thing) in my airbag sensor connector under the seat and it worked as it was supposed to: it made the airbag light go away. Every time the engine would kill, the light would go out at that exact moment. My multimeter was reading 72 and the IAT was reading 73-74 So I dialed back the Bias resistance a bit until I got a perfect match in temps between the CLT and the Multimeter. replace sensor and/or extension cable. 60 K ohms 158 degrees F = 5. 5 Ohms on the injectors is your problem. The MAF sensor receives a reference voltage from the PCM, and sends back a voltage to the PCM based on the volume of air it measures. Somewhere in the back of my mind, I want to say that most GM pressure sensors have the same resistance range. The connector is a standard GM part. Ford airbag fault code B2293 - Cars & Trucks. when the physical steering is pointed straight ahead If the steering angle sensor calibration value is not extremely close or exact, you need to reset it. If your airbags have deployed, it's. A fully warm O2 sensor *will not spend any time at 0. The diagnosis of airbag sensor would require you to consider certain things. (2320 m) Max. This sensor acts as your mixture indicator telling your computer if your engine is running lean or rich. This should be done through the breakout box to check the entire circuit. BOSCH Ignition System with Hall Effect Sender In this short automotive repair article you can find the technical data about an older generation of Bosch ignition systems with Hall effect sender. Re: 454 Chevy temp sensor 01/18/2016 12:50 AM In the first design of the 366-427 engine, all coolant monitoring was done by water temperature sensors installed in the intake manifold in the short water runners between the thermostat housing, and the front of the cylinder head. There is not way that I know that you can do that without a scanner. to be able to operate properly. If you have a new sensor on hand and want to check it, you can do this easy test. Even though they are not part of the deployment loop, make sure to either PULL THE SDM or SIR FUSE (probably says SIR but might say SDM). 2004 Mazda Bus Wiring Network. 4 ohms seem strange, unless you mean kilo-ohms. the CKP sensor, or the CKP to reluctor wheel gap relationship, An engine replacement, The ignition switch is in the ON position until the battery is drained. The remaining two pins should read OL (infinite) if it's a normally open relay, or 0 ohms (continuity) if it's a normally closed. Those readings are regarded as high impedance. I decided to test my plan of attack by using my DMM to measure the resistance of both rear O2 sensor heater circuits at shop temperature. If the correct readings are not obtained, replace the front sensor. The GM high energy ignition (HEI) is one example. If the issue that you are having is activation of the ABS system at low speeds it's more than likely the wheel speed sensors themselves. Nothing in the shop manual as usual, just a coil of wire wrapped around a cylindrical bar magnet, over the years, any where from a few ohms up to over 1 Kohm. Vehicle Theft Deterrent Learn. If anyone has this code C0045 it's a sensor that is connected to the wheel bearing. /2 5% tolerance resistors) you can fully remove the pressure system and still have the air bag working w/o lights. The Engine Coolant Temperature (ECT) sensor is a thermistor (a resistor which changes value based on temperature) mounted in the engine coolant stream. The voltage type communicates to the ECU by giving it a voltage, and this voltage tells the ECU what the MAP's current pressure reading is, or the MAF's current volume of air flow. What the Home Mechanic Needs to Know About O2 Sensors - An Article from the OBDII Technical Library Today’s computerized engine control systems rely on inputs from a variety of sensors to regulate engine performance, emissions and other important functions. Remove the sensor retaining bolt. A sensor may provide a signal representative of the linear position of the seat on the track for a variety of purposes, e. This should be done through the breakout box to check the entire circuit. My service engine light came on and i went to auto store and used the computer. for the pump and sender assy. The most common OBDII code related to the crankshaft position sensor is P0335 - Crankshaft Position Sensor "A" Circuit. I'm wondering what range setting do you have your mult-meter on, as the numbers your giving of between 1 ohm and 2. 3 ohm resistor (actually three 10 ohm resistors in parallel which is the same thing) in my airbag sensor connector under the seat and it worked as it was supposed to: it made the airbag light go away. The ohms reading on both side are 3. This sensor was replaced during my rebuild exercise and it looks like they provided the wrong part. Inside the steering column, there is a sensor cluster which houses the steering angle sensor. Got a new truck, 2005 Silverado. Turn off the car. All wheels read 3. A code 14 indicates the coolant temp reading is higher than expected. Nobody that Im aware of makes a code reader that will clear airbag codes, if everything is plugged back in and hooked up properly unhooking the battery and hooking it back up may work but if it doesn't then I'd get it to the dealer to be checked. Chrysler Electronic Ignition System Test A voltmeter with a 20,000 ohm/volt rating and a 1 1/2 volt battery powered ohmmeter are required. The 2010 Chevrolet Impala has 3 problems reported for sensors faulty. 4 ohms seem strange, unless you mean kilo-ohms. Component Description. The only way to solve this problem is to replace the Fuel Tank Level Sensor. If I check using my multimeter (Fluke 8062A) in standard ohm measurement mode, I get a reading of non-continuity. Turn the ignition switch to the OFF position. 8 volts or more when you have the key on Read more. net is one of the leading GM replacement part and accessory ecommerce websites in the world. vehicle owners manual. Body shop reused old terminal and pressed it back together in a vice, and used a resistor to trick the airbag module to think everything is all good. 99) Get access to the airbag DTCs and definitions related to the airbag warning light for most 1996 and newer GM, Ford, Chrysler, Honda, Hyundai, Nissan and Toyota vehicles. The temp sensor is likely the culprit and it appears to be a 3/8" NPT which I think is a TS-76 (GM #8993146). connectors [on the ECU side, not the airbag side], disconnect from the airbag itself, and play with resistances between, at a total guess, 1 and 10 ohms and see when the airbag controller stops complaining about a bad squib. Fortunately, GM provides a standard test port on later models. Good luck with this, but I worry about the liability can of worms you're opening. Right now there is a huge issue with fretting corrosion, not just with GM but since that's what I see all day usually, I'll stick with them. Please keep in mind when setting up and reading the meter that "K" means thousands of Ohms. A MAP sensor continually compares atmospheric absolute pressure to the intake manifold vacuum and sends the appropriate voltage signal to the vehicle's computer. Airbag light came on a 2009 GMC / Chevrolet pickup truck for no reason. Based on that information, the vehicle's computer turns the passenger airbag ON or OFF. Nobody that Im aware of makes a code reader that will clear airbag codes, if everything is plugged back in and hooked up properly unhooking the battery and hooking it back up may work but if it doesn't then I'd get it to the dealer to be checked. A sensor may provide a signal representative of the linear position of the seat on the track for a variety of purposes, e. Once you have cleared the codes you can then reset both the ABS and SRS warning lights. You only need to know the magnitude of your thermistor. GM MAP sensor Identification How to identify a GM MAP sensor. And thanks for reading Autoblog. If the issue that you are having is activation of the ABS system at low speeds it's more than likely the wheel speed sensors themselves. If Ignition 1 is outside of the normal operating voltage range, the AIR BAG warning lamp come on solid with no DTC set. That would be excessive for most high-current circuits, but sensor circuits have extremely little current flow, so that resistance isn't a factor in its operation. After reading several columns online, checked and found the driver side carpet wet under the mat. It went in tight, I screwed it down (the 5mm allen bolt came off easy with a little PB Blaster), spun the tire, and saw the sensor reading speed. Measuring resistance in each sensor is a good way to tell if there is a short. If you are testing one bank- 3 injectors, then the reading should be about 4 ohms on the line. My DMM readings were identical, so I knew the scanner was telling the truth. A faulty pad has higher resistance (mine had 13Mega Ohm) but usually the pad's resistance should be between 9- 10M Ohm with no occupant and when someone seats on it, it should drop to under 100 Ohm. If the ohms reading are above 2. How to Reset / Repair clear the crash data from GM Airbag control module part 1 how to know or diagnose airbag SRS air bag control module if its blown on honda or acura - Duration. Cannot program inclination sensor until master warning light code is cleared. Classic Industries offers a wide selection of Chevrolet Truck parts, including Chevrolet Truck interior parts and soft trim, Chevrolet Truck exterior sheet metal, Chevrolet Truck moldings, Chevrolet Truck emblems, Chevrolet Truck weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. • For additional diagnostic information, refer to DTC B0013, B0014, B0017, B0018, B0024, B0026, B0043, B0044 in the appropriate SI Document. If the sensor is chewed up in any way you will have to replace it. If i could find nd out what voltage i m supposed to read with multimeter on the left wheel speed sensor while i spin the wheel. (The output of the LHF wheel speed sensor was flat line at the time of driving. In other words, 15K Ohms is the same as 15,000 Ohms. , the IAT sensor reading), if it is between 100000 and 200 Ohms, you should get a temp reading. It can be a very low cost, simple meter. Nice stuff!. 5 ohms indicating the leads are dropping that much resistance. See if the difference between the hot engine reading and the cold engine reading is more than 200 ohms.