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Service AH Service Vehicle soon after new wheels and tires
After installing a new set of wheels and tires a couple of months have gone by and i have a persistent DIC light from startup and these codes
DTC C1282 Yaw Rate Sensor Bias Circuit Malfunction
DTC C1283 Excessive Time to Center Steering
DTC C1285 Lateral Accelerometer Sensor Circuit Malfunction current
DTC C1288 Steering Sensor Circuit Malfunction current
I moved to 245/35/19 F and 275/35/19 rear with more negative offset. As I understand I maintained the ratios that people say are required here on the forum. But I can’t help but think that this may have something to do with it. I may have already had the service vehicle soon after a dead battery but i’ve been away from my car for a while and can’t recall the sequence exactly. The wheel seems straight but perhaps I need an alignment?
I don't know that I can help you directly, but you've got some diagnostic work ahead of you. Down below is the wiring diagram for the EBCM circuit/sensors. You'll notice that your codes are related to each of the sensors used by the EBCM: yaw, lateral acceleration, SWPS, though interestingly no codes for fluid pressure sensor. Then the C1283 would occur because the EBCM can't determine center with all the other issues.
For starters, if you clear the codes, do they immediately come back?
Frankly I have a hard time correlating new wheels/tires to the faults you're seeing. Maybe they disrupted the EBCM/wiring while lifting the car? Or somehow damaged a wheel speed sensor? If it were me, I'd start with the wires that all the sensors have in common: 5V gray and orange/black ground. And also take a close look at the wheel speed sensors/wiring near the wheels.
I don't know that I can help you directly, but you've got some diagnostic work ahead of you. Down below is the wiring diagram for the EBCM circuit/sensors. You'll notice that your codes are related to each of the sensors used by the EBCM: yaw, lateral acceleration, SWPS, though interestingly no codes for fluid pressure sensor. Then the C1283 would occur because the EBCM can't determine center with all the other issues.
For starters, if you clear the codes, do they immediately come back?
Frankly I have a hard time correlating new wheels/tires to the faults you're seeing. Maybe they disrupted the EBCM/wiring while lifting the car? Or somehow damaged a wheel speed sensor? If it were me, I'd start with the wires that all the sensors have in common: 5V gray and orange/black ground. And also take a close look at the wheel speed sensors/wiring near the wheels.
1997-2000 EBCM wiring:
The codes come back immediately , as soon as the vehicle is switched to ON.
Service AH Service Vehicle soon after new wheels and tires
