Testing CAM or CamShaft Position Sensor Hall Effect Type GM Reduced Engine Power Mystery Solved - Duration: Testing a Camshaft Position Sensor (Hall Effect Type). The cheapest scanners that you can get to read and clear Chevrolet and GM airbag light are in the $99-$150. 08k ohms except the right rear which read 4. Disengage the wiring harness connector from the VSS. If you have an ohm meter I can give you the specifications for it. If the sensor returns the specified settings, reattach the connector. A note about vehicle alterations by independent suppliers: This catalog shows. 3 ACE Ckp/Cmp Signal Reference Known good examples of Cam and Crank sensor signals! Overview The A. On VR6 (AAA) engines, the middle sensor (usually yellow in color) on the cooling elbow is the gauge sensor. Let's try one more example; convert the meter reading of 1. And yet, a number of trucks’ airbags are. At 2500 RPM's it hovers around 5. 5K ohms and 10. The secondary coil should generally read between 7. We now serve customers all over the world and provide free worldwide shipping option. This will tell you if the sensor is good or bad, that keeps the airbag light on. The variable reluctor sensor has been the most widely used in automotive ignitions. Indications of a faulty TPS include engine stalling, lurching and sputtering; poor TPS performance starves the engine of fuel. 52 ohms at room temperature. 85 volts at WOT. Since thermistors are "continuous function devices", resistance vs. Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. 01 ohms resistance in the starter cable. The electronic speed control system depends on the steering angle sensor to calculate the angle of the steering wheel’s position as well as its rate of turn. com, your number one source for airbag system electronics. B2909 16 Belt Tension Sensor Fault GO to Pinpoint Test T. To reset Airbag on most vehicles, CARPROG FULL is the best. GM issues a US recall of 330,198 Chevy Silverado HD and GMC Sierra HD pickups from 2007 and 2008 to replace passenger-side Takata airbag inflators. Help please, 2001 Mercury Sable LS: I have EATC self test showing 2 fault codes, 24 and 51. With the multimeter set to the Ω setting put the red probe on the post that is the gauge lead and put the black probe on the ground post or on the body of the fuel sender. 6 litre engine uses this sensor and therefore has a distinctive waveform when viewed on the oscilloscope. Unplug the Pick-up Sensor (lead from Distributor). 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. When testing NO COMMUNICATION fault message from your scanner, please use this as your guide. Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. 3k ohm, thats 3300 ohms. 7L GM vehicle is not that hard to do. There is not way that I know that you can do that without a scanner. 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. How To Fix Your Airbag Light Without Having It Blow Up In Your Face The way you know if the sensor is at fault. A reading something less than 60 ohms would indicate that high speed LAN bus is shorted together. General motors did an inspection of the vehicle, however, I was not pleased with their conclusion. This sensor tells the braking system how fast the wheels are spinning--and the braking system uses this information to come between you and the brakes when you are doing. 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. The ECU then sends that data to the airbag, which has its own control unit. If the resistance is 190–250 ohms, the sensor is okay. It arrived in three days with standard shipping. NOTE: disconnecting the diagnostic monitor disables the entire airbag system. wires will be color coded so check at door then where the wires enter the vehicle. Honda Motor Corporation OBD I diagnostic trouble codes are retrieveable without any special tools by simply following the instructions here. Below you will find the most complete list of GM trouble codes available. To test the pyro sensor that is in the seat belt you can use a diagnostic scan tool to see if it has any seat belt codes or use a multimeter to measure OHMs of the seat belt. 5 watt To defeat the airbag warning, use a 4. If the leads are reversed, you will get an infinite reading indicating an open circuit. Up to 300 models included in this update. WIRING DIAGRAM COMPONENT LOCATIONS. The new one was equally tight and I took a file to the sides to gently grind them down slightly. 4 volts and deployment loop resistance is 6 ohms or greater for 500 milliseconds. Once GM has identified the affected vehicles, those vehicle VINs are loaded onto this. One of the end connections and the adjustable center tap as shown in Figure 1. Because this type of sensor produces such a low voltage, a bad connection voltage drop could significantly affect the sensor reading. GM works to quickly identify affected vehicles and notify owners. ohms means the motor is shorted and needs to be replaced. Cannot clear other codes until air bag sensor malfunction is repaired. To bypass the pressure sensor you will need to get Qty. Disengage the wiring harness connector from the VSS. trouble code showed a bad airbag or wiring from the crash sensor to the airbag. The codes are listed seperately for Camry and Corolla models as needed. AAC: Auxiliary Air Control AAT: Ambient Air Temperature AAV: Anti Afterburn Valve ABS: Anti-Lock Brake System A/C: Air Conditioning ACC: Accessory Position ACERT: Advanced Combustion Emissions Reduction Technology. Call 9567289600 for more information. Failure to do so will most likely result in the sensor-related DTC(s) remaining in memory, Airbag warning light illumination and possible. You want around 3. You can hose down in the wheel well where the bad sensor is, sometimes the water will short to ground and trigger the light on. Once checked and found to be fine, the light will switch off again. Take the readings when the part has warmed up to 70 degrees or so. 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. Find the right scan tool you need. At 2500 RPM's it hovers around 5. Airbag Injuries. This sensor can ’t be shorted so reduce the range setting until you get a value of resistance. Cannot program inclination sensor until master warning light code is cleared. According to a report. Remember, the ohmmeter may have some internal resistance, usually. If the MAF sensor appears to be reading normally, check the engine coolant sensor to make sure it is reading within range. Many threads about this, included the Vortex link. Codes 41 to 45 pertain to problems with the RH and LF primary crash sensor. Call (855) 441-9650 for more information. Hey Everyone, When I initially installed a new seat, I put a 3. If it is not, then you will need to check your wiring (verify common ground etc. NAPA is your trusted source for automotive parts, accessories & know how for your car, truck or SUV. 55 mph to a complete stop. Set the meter to ohms and check the resistance with what is specified in the service manual. AIR BAG DEPLOYMENT CRITERIA 5 THE DECISION PROCESS The air bag control module (ACM) receives a continuous signal from each MEMS sensor and records the data for a fixed period after a specific event. The codes are listed seperately for Camry and Corolla models as needed. ABS Sensor restistance (Ohms). This will blend in nicely with your system wiring, so you get a tidy installation. Vehicle Speed Sensor Replacement. A failed MAP sensor has serious implications on fuel control, vehicle tailpipe emissions and fuel economy. GM brake pedals allegedly too hard to push, causing brakes to fail and drivers to crash. To test the rear speed sensor, disconnect the electrical connector at the sensor which is located on the rear differential. A resistance reading that is now within range tells you the problem is in the wiring, not the sensor. The reading should be 2000 ohm approx. GM Programmable Modules using J2534-1 or J2534-2 2008 Chevrolet Cobalt TCM Transmission Control Module 2008 Chevrolet Cobalt V. It can be a very low cost, simple meter. The air bag light is on because there is a problem with the air bag system. With the leads together I get a reading of. One of the end connections and the adjustable center tap as shown in Figure 1. Call us today to learn more!. Bosch part 0 261. Many threads about this, included the Vortex link. Step 4 - Check With Cold Sensor. Dorman Products - 590-200 : Impact Sensors- Front Bumper. Wire Type Bypass Resistors. The information below, relates to the very popular, 1988 through 2013, Chevrolet and GMC. Airbag, Body, Chassis, Oil service reset, Powertrain, Security, Trouble Codes, Vehix411 Youtube Channel Vehix411 APP for all your genatic and manufacturer spacific trouble codes and oil reset May 10, 2017. Check out the deal on Mopar 05149229AA DPF Pressure Differential Sensor 07. Learning how to check an oxygen sensor (O2) will help you confirm a potential problem with the sensor in your vehicle before you spend time and money replacing a unit that might not even need a replacement in the first place. Symptoms of a BAD GM MAF Sensor. If the sensor does not return to the proper settings, it is defective and should be replaced. For vehicles ﬁrst sold in Canada, substitute the name “General Motors of Canada Limited” for Chevrolet Motor Division wherever it appears in this manual. Help please, 2001 Mercury Sable LS: I have EATC self test showing 2 fault codes, 24 and 51. Well, I tested out my glow plug controller, and the voltage at the glow plugs themselves is 9. He will then adjust the airbag sensor or determine what else may be the problem with the airbag system. ohms means the motor is shorted and needs to be replaced. How To Fix Your Airbag Light Without Having It Blow Up In Your Face The way you know if the sensor is at fault. If it does not, replace the sensor. did not use a cam sensor on that year. If you have a new sensor on hand and want to check it, you can do this easy test. The fuel level Sensor has a signal circuit and a ground circuit. 1958-1982 Temperature Gauge Input Readings. For vehicles ﬁrst sold in Canada, substitute the name “General Motors of Canada Limited” for Chevrolet Motor Division wherever it appears in this manual. This article applies to the Ford F-150 (2004-2014). GM recalls 3. LED Daytime Running Lights. A DVOM or analog Ohmmeter is required. it has worked for me for 4 years saves me gas too!!!thanks. There will be an AC component as well as DC with output of a hall sensor. View this Used 2016 CADILLAC CT6, from AutoNation USA in Houston. Rotunda Air Bag Simulator 105-00010 or equivalent is required to perform diagnosis and testing of the air bag system. However, if I check the same terminals using the auto-ranging ohm measurement mode, the resistance reading is within specifications. 400miles later I get the P0332 code again, measure the resistance of the sensors and now they are both completely out of spec. The airbag on the driver’s side can cost $150 to $600 per bag. o Air bag system readiness indicator. I under that the two related. 6 K ohms or 16,600 ohms +/-5%. Without a scan tool capable of reading ABS codes, a visual inspection is the easiest thing to do when diagnosing an ABS light. A low voltage reading or no reading calls for a direct measurement of the resistance in the WSS circuit (with the key off). This sensor uses a hot film-grid instead of a hot wire. Then wait for at least five minutes for the temperature of the thermistor to reach 32 degrees. • The SDM detects that the voltage at the air bag module high control is less than 2. The more they wear, the more erratic your fuel gauge readings become, eventually failing all together. You can do it at home using a digital multimeter and a cooking thermometer. The cheapest scanners that you can get to read and clear Chevrolet and GM airbag light are in the $99-$150. 5 watt Passenger Airbag resistor needed is 4. All wheels read 3. This means the sensor is designed to read up to 1-bar of atmospheric pressure difference. ^ For vehicles built after 9/17/2007, replace the Inflatable Restraint Front End Sensor (EFS) with P/N 25896408 (2nd design). When you need a headlight bulb or a stop light switch, you may be tempted to just run down to the local auto parts chain store. The General Motors Simtec Sensor on this vehicle has a different voltage characteristic to that on the majority of vehicle systems. Since oxygen sensors are not cheap and sometimes the PCM (Powertrain Control Module = Fuel Injection Computer) accuses them of being BAD, when they aren't, testing them is a good idea and this article will help you. according to WIS you have 3x wires to the airbag, with connectors, yes, under the seat. It only has to be able to measure 0 to 12 volts. Got a new truck, 2005 Silverado. 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. How to Make a DIY Airbag Tester. The 2017 ELANTRA Is a very average car this car is comfortable with a decent amount of technology this car rides fairly well the acceleration is surprisingly good considering it doesn’t have a lot of horsepower. I got an ohms reading at the sensor terminals of 1034 ohms and it stayed within spec while I rotated the wheel. The transmission will not smoothly change gears; One of the common speed sensor symptoms of your car is that the transmission will not smoothly change gears of your vehicle because of higher transmission revs. The SRS airbag module is often referred to as the airbag computer , 591, derm unit, airbag sensor as well as the diagnostic unit. Have ordered sortiment of different 1/2 watt 5% carbon film resistors now. The coolant temp sensor reading is one of the criteria used by the ECM/PCM to determine how much fuel to inject. 7CWBK-ND, $1. You can use any standard digital multimeter to read the codes. If it is a problem with a sensor, the sensor can be replaced. To bypass the pressure sensor you will need to get Qty. 85 volts at WOT. An airbag is worthless if the airbag sensor isn't working properly. It is possible that they may have knocked a sensor wire or connector loose, or even damaged the sensor. If the ohms read zero the coil connection is broken and the coil is no good. The 2 needles can now plug in the airbag connector and the 2-ohm resistor will “fake” the airbag. Resistance of Oil Pressure & Water Temp Senders. NOTE: disconnecting the diagnostic monitor disables the entire airbag system. No store bought additive is going to fix this problem. 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. GM, Saturn, Hummer, air bag, airbag, black box, SDM, EDR, event data recorder, accident, deployment crash data retrieval using the Bosch / Vetronix CDR data tool. A further 199,118 units of the Hyundai Santa Fe are also being recalled for a separate airbag issue. BMW Sensors Problems and Faults. You can use any standard digital multimeter to read the codes. You are sending a small current through the sensor, and the multimeter is telling you how much resistance the sensor (and the wires) are causing. • Conduct an electronic test of the MAF sensor by the engine management control unit. 4L car or mini-van. The sensor’s output can be read on a scan tool, or checked by reading its frequency or voltage output on a DVOM. Based on that information, the vehicle's computer turns the passenger airbag ON or OFF. As the name suggests they continually resonate with their tuned peaks but this makes them susceptible to other noise sources containing the same excitation frequency. The P0343 is a generic trouble code which applies to all makes and models from around the year 2000. I have found some good info relating to voltage divider circuits for coolant temperature errors,P0118 – Engine coolant temperature (ECT) sensor -high input – OBD2 Trouble Codes So I will be following some of the relevant suggestions. Because this type of sensor produces such a low voltage, a bad connection voltage drop could significantly affect the sensor reading. Currently that you are reading through ACDelco 25950303 GM Original Equipment Rear Radio Speaker article. 4 ohms that I see through the air bag. 9 volts of DC signal. I checked the wiring with an ohm meter on both right and left rail airbag sensors. When possible we give the more commonly known OBD II component name. In order to check your coolant temperature sensor we would need the table of ECT resistance for a certain temperature for that sensor. It is done with PIDs to and from the PCM. Measuring resistance in each sensor is a good way to tell if there is a short. This is important, as it allows your engine to regulate its performance and change the intake of air to keep your engine running in its best condition. Vehicle Theft Deterrent Learn. Replace the oven sensor if the reading is less than 900 Ohms or more than 1200 Ohms. ) it probably will be in the K ohms. Begin driving one measured mile. Shops report problems with P0440, P0441, P0442, P0446 EVAP codes on GM vehicles. Many car models include sensors that automatically reset after an impact. Much more common, however, are failure modes in which the MAF sensor has become unreliable, underreporting or overreporting the true airflow into the engine. The OHM reading Good seat belt pretensioner will give you a reading of 2 - 3 OHMs. You appear to have done this successfully, and got a reading of 1300 ohms on each side. View pricing, pictures and features on this vehicle. Disconnect the main ABS connector and take an OHM reading. The dealer checked it and told me that the front airbag sensor needs to be replaced (code B0100 and B0101). DTC P0342 Camshaft Position (CMP) Sensor Circuit Low Voltage. Resistors fix for airbag light - posted in Performance and Technical: MkIV with airbag light on. GM OBD1 Diagnostic Trouble Codes & Cures This General Motors Corporation OBD I diagnostic page explains the codes, the most probable cause and what conditions are required to set the code. 5 suspension lift rough country 3 in body lift from performance 315/60/r20 toyo open country mt with vision warrior wheels. Call (855) 346-0706 for more information. Vehicles that typically use Index based Airbag Coding include: Audi. Looking for the resistance readings into both airbag crash sensors for a 2005 Chevy Tahoe 5. No store bought additive is going to fix this problem. 9 volts of DC signal. The exciter inside the ignition lock cylinder energizes this transponder when the ignition switch is turned on. Gm air bag sensors keyword after analyzing the system lists the list of keywords related and the list of Gm airbag sensor ohm readings. 5 watt Seat Airbag resistors needed is 4. 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. GM warns against using any injector cleaner that contains methanol as this may damage components in the fuel system. Learn about this problem, why it occurs, and how to fix it. Iprog+ Programmer Support IMMO + Mileage Correction + Airbag Reset Iprog Pro Till 2019 Replace Carprog/Digiprog/Tango. Step 4 - Set the Meter. When the MAF is disconnected the computer relies on other sensors for data, such as the MAP sensor, TP, and O2 sensors to gather data on airflow. 4–20 mA inputs using optional connector(s). MAF Sensor values on Scanner Venture Car Forums. It is important to know how to check the ohms in your oxygen sensor. Can anybody check a 4-wire Oxygen Sensor? Here's how to check a 4-wire oxygen sensor: This is the second part of testing your oxygen sensor. NOTE: disconnecting the diagnostic monitor disables the entire airbag system. Here's a tear down on how an airbag sensor works. To test the sensor, you can remove the electrical connector and check the resistance value of the sensor and compare it to specs. Good luck with this, but I worry about the liability can of worms you're opening. No store bought additive is going to fix this problem. The GM high energy ignition (HEI) is one example. For any other reading, check it against the manufacturer’s specifications. Must not be 0 ohms or infinite ohms. The subsequent parameters provide precise sender resistance values for three specific gauge readings (Low, Medium, and High), hence, can be used to estimate sender resistance when actual physical parameters are known (e. We offer an impressive selection of quality parts, as well as highly effective repair services, easy shipping, and quick returns. Input Impedance: over 1 meg ohm; Calibrating an Analog Sensor. Airbag Systems How to test an Airbag to know if it is good or bad - Duration:. 7L Dodge Ram Cummins at Diesel Power Products. long periods of idle time can render a non-heated or older o2 sensor too cold for it to function at all. I have a 1999 grand prix gt. If the reading is something higher than 60 ohms this indicates high resistance/open in the high speed LAN bus. The GM models covered. 1GYS4BKJ0HR173498. The sending unit reading should be in the 30 to 55 ohm range, depending on the operating temperature, speed and oil viscosity. A vehicle speed sensor works a lot like a wheel speed sensor. If you have a coolant sensor fault code stored in your DME and your engine isn't running right, I suggest replacing the sensor before digging too deep. Replace sensor and/or extension cable, if necessary. 55 volts and 4. One of the more dangerous lights you can have on is the airbag warning light. Mass Air Flow Sensor Description & Related Information. The cluster always has more than one steering position sensor for redundancy and to confirm. The stock number for this is 22710Z. Since oxygen sensors are not cheap and sometimes the PCM (Powertrain Control Module = Fuel Injection Computer) accuses them of being BAD, when they aren't, testing them is a good idea and this article will help you. These codes are stored when a sensor in the car reports a reading that is outside the normal/accepted range (Eg: fuel mixture too rich). No, repair the Right Rear WSS signal circuit and the Right Rear WSS supply circuit for a short together. Step 4 - Check With Cold Sensor. Infinite resistance indicates an open circuit in the sensor, and 0 ohms indicates a shorted coil in the sensor. Research the 2015 GMC Yukon XL Denali in St. wires will be color coded so check at door then where the wires enter the vehicle. To test the pyro sensor that is in the seat belt you can use a diagnostic scan tool to see if it has any seat belt codes or use a multimeter to measure OHMs of the seat belt. The “k” symbol stands for 1,000. The primary coil should read between. Can you tell me where I can find this sensor in my vehicle so I can change it myself ? Also, do I have to buy this sensor from GM since it cost 450$ I would like a cheaper alternative. Started it up today and got a flashing “SYS” It would flask go off and the battery voltage would show. Locate the electrical connector from a particular the wheel speed sensor which is near the frame in the wheel well in most cases. a few minor things have gone wrong and now im very happy with gm also. A bad engine coolant temperature sensor affects engine performance: It may cause a constant lean air/fuel mixture, causing the. Could be the wires, although my wires are fairly new AC Delco wires with about 50,000 mostly highway miles on them. The camshaft position sensor is fitted at one on one of your camshaft. is recalling 804,000 full-size pickup trucks and sport utility vehicles because of potential problems with the anti-lock braking syste GM Finally Recalls Trucks, SUVs for ABS. The airbag on the driver’s side can cost $150 to $600 per bag. 5K ohms and 10. that the resistance is 11. All SMP-manufacture. As with the Zirconium sensor, the Titanium O2 sensor is also considered a. Sensor), Type 9 (Dale/Vishay) or Type III (ACI Series AH) can be used with the I/A Series MNL and I/A Series MNB series controllers, provided that a 11k ± 0. Then searched in the 1500 side, still nothing. Code B0103 is for the right side front sensor. This is a dangerous proposition, and it means that you should avoid driving if at all possible in that vehicle. Furthermore, The (MAF) mass air flow sensor also measures the temperature of the incoming air. Many car models include sensors that automatically reset after an impact. Gauge normally reads 1 tick above 1/4 scale with the engine operating around 180 degrees, thats just how the originals work. The TPS feeds information to the engine control unit regarding the degree at which the throttle valve is open. 55 mph to a complete stop. 73k miles and out of warranty my head gasket went. Can you tell me where I can find this sensor in my vehicle so I can change it myself ? Also, do I have to buy this sensor from GM since it cost 450$ I would like a cheaper alternative. Check wiring/connector of sensor. When replacing the sensor, install a complete air filter, dryer and sensor assembly. However, not all vehicles are designed this way, and the sensor may have to be replaced or reset manually after an impact. It is important that you familiarize yourself with these codes so you get the appropriate airbag repair services. The process of eliminating or identifying the. Is the right? Does one terminal act differently than the other? Thanks in advance. The "service air bag system" light is on and I had it read on the tech 2 by a friend of mine. The Camshaft Position sensor is mounted through the top of the engine block at the rear of the valley cover. Just sitting there will trigger the seatbelt sensor and sometimes the interior lights. To convert the reading to a whole number, change the decimal point to a comma. The "k" symbol stands for 1,000. The MAF sensor is used to measure the amount of air entering the engine. The short answer is that this type of sensor needs a pull up resistor to generate a voltage. One of the end connections and the adjustable center tap as shown in Figure 1. With the thermistor in a cup of water, the ohm reading should be around 16. Oil - Less ohms = higher reading; If you lower the resistance to 40 ohms (test) the reading will jump from the normal 30 to 60; I have also seen Pink on the oil gauge in an original 1980 Vette. However, you won't likely get a reading unless the signal wire is hooked the the circuits on the vehicle. The airbag control unit has minimal tolerances, and a bad connection will trigger the airbag light, and it will shut off the system. (See dealer for details. This vehicle is the perfect combination of performance and style. GM issues a US recall of 330,198 Chevy Silverado HD and GMC Sierra HD pickups from 2007 and 2008 to replace passenger-side Takata airbag inflators. It would be helpful if you could get the codes read with an actual reader and tell us which one is there, but both of them point to a possible failure of the "diagnostic monitor" which lives up near the inertia switch, behind the RH kick panel. Have them show you which switch is bad and take a look at it (before they remove it or tamper. Rear Window Wiper. The same test can be done when isolating the ECM Module by disconnecting all it's red dots connectors inside the ECM Module. This is an airbag fault code. Understanding what ohms are is a good start to knowing how to check them on your oxygen sensor. Works with GM group (GMC-Chevrolet-Saturn-Cadilac) airbag sensors made by Delco: Chevrolet Impala, Silverado, 1999-2005 Saturn Ion 2003-2005 Pontiac Aztek 2001-2003 Bonneville Lesabre 2005 and many others. The light will come on when you start the car then go off after a few seconds once it sees the correct resistance. Turn the key to the on position. Read ABS: This obd1 diagnostic tool can help you find issues in the ABS. In googling around I found this excerpt from US patent 6597181:. Speed sensors can also be checked with an ohmmeter. Input Impedance: over 1 meg ohm; Calibrating an Analog Sensor. Each code is two digits and is counted by quick flashes and pauses. It can be a very low cost, simple meter. 3 OHMS SRS AIRBAG RESISTORS 0. However, if 1 of the resistors has a poor connection, you'll get a reading of approximately 330ohms. Resistors fix for airbag light - posted in Performance and Technical: MkIV with airbag light on. On 2 wire Sensor engines, the distributor stator or Camshaft Position (CMP) sensor is a single Hall effect magnetic switch. Add to Cart. This takes place whenever there is a. This could end up affecting your transmission, speedometer, ABS, power steering, and your cruise control. GM recalls 3. worst car and service ever. Take the readings when the part has warmed up to 70 degrees or so. 4 i have a air bag light on. Hey Everyone, When I initially installed a new seat, I put a 3. Shown below is a 2008 GM Silverado truck bus network diagram for the DLC connector.