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Posts Tagged: ABS sensor

Speedometer doesn’t work ABS light on

Speedometer doesn’t work ABS light on – Durango If you own a Dodge Durango (1998-2000) and your speedometer doesn’t work or the ABS light is on or the brake light is on, here’s what to do. Start by unplugging the rear wheel speed sensor. It’s located in the differential housing. Use a digital multimeter set on the ohms scale and check the resistance of the sensor. Resistance should read between 1600 and 2800 ohms. If it doesn’t replace the sensor. If it does check out, plug the connector back into … Read More

ABS wiring harness repair

How to perform an ABS wiring harness repair All car makers are experiencing problems with ABS wheel and speed sensors and the ABS wiring harnesses. The harsh conditions along with continual up/down and right/left motion contributes to broken and frayed wires. That will light up the ABS light. You can replace the wiring harness with a factory unit or a Dorman Products replacement. If you decide to do an ABS wiring harness repair However, if you decide to repair the broken wire, you MUST solder it. Do NOT use a … Read More

Trac off light on

Trac off light on and ABS light on GM vehicles Shops are reporting huge failure rates on ABS sensors in some late model GM vehicles. When the ABS system detects a fault the computer lights the ABS light and turns off the traction control notifying you with a trac off light on. The problem with the ABS light and Trac off light on is most often a bad ABS sensor inside with the wheel bearing/hub. These sensors are made in two styles: Exterior ABS wheel speed sensor This style ABS … Read More

C1235 C1236 on Ford Explorer

C1235 C1236 on Ford Explorer ABS C1235 C1236 trouble codes would lead you to believe there’s a problem with both the left rear and right rear ABS sensors. But when you get under the vehicle, you won’t find separate sensors. That’s right, there’s only one and it’s NOT mounted at the either wheel. It’s mounted on the differential and the tone ring is inside the differential. To test the system, check for at least 10 volts on the light green/red wire at the sensor with the key in the run … Read More

ABS Wheel Sensor – Pacifica

ABS Wheel Sensor – Pacifica If you have to replace an ABS Wheel Sensor – Pacifica, read this TSB from  Chrysler. TSB # 05-003-07 covering 2006-07 CS Pacifica vehicles covers the failure of a wheel speed sensor. In an act of sheer brilliance (or stupidity, depending on your perspective), Chrysler now requires you to replace ALL FOUR speed sensors even if you only have a problem with a single sensor. The sensors come in two kits, one for the front wheels (2 05166544AC Sensor, Anti-Lock Brake Kit, (Front), and one … Read More

Backprobe an electrical connector

How to backprobe an electrical connector and test an electrical circuit When you’re checking live voltage readings on sensors, the challenge is How to backprobe an electrical connector. Some pros stick a pin through the wire. But these piercing claws from Ferret make the job much easier. Isolate the wire carrying the signal you want to monitor. Then position the wire in the cradle of the “claw.” Screw the piercing probe into the wire and then attach the lead from your digital multi-meter into the end of the Ferret Claw. … Read More

ABS TCS lights on C1223, C1225

C1223, C1225 ABS TCS lights on GM vehicle GM did it again. If you have a C1223, C1225 ABS TCS lights on condition, a wire harness problem might be the cause of an ABS/Traction control light on in 2003-04 Chevy Cavalier and Pontiac Sunfires. The traction control gets its information from the ABS system, so a faulty sensor reading will automatically shut down the traction control system. The problem is usually on the left side and is caused by the wires separating from the connector. So a meter reading will … Read More

Test an ABS sensor

How to test a wheel speed sensor If the ABS light is on and you suspect a bad sensor, here’s how you test an ABS sensor ABS sensors are divided into two categories: active and passive. Passive sensors generate an AC voltage that you can test with a digital multimeter. An active sensor produces a digital square wave and you can only test those with a scope. This article describes how to test an ABS sensor of the passive type. Disconnect the sensor at the wheel and use a digital … Read More


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