Steering wheel position sensor 98
Car is a 98 coupe.
Thank you Kirt
Car is a 98 coupe.
Thank you Kirt
You can start by pulling and posting the codes stored in the computer so we have some information about what is happening and don't have to guess:
Here is how to pull and post codes:
OR
http://www.c5forum.com/ayc/dtcdic.php
C1288:
Circuit Description
The Steering Wheel Position Sensor provides the EBCM with an analog voltage reading from 0.2 - 4.8 V depending on the steering wheel angle. The EBCM uses the analog voltage for the centering routine. The EBCM runs a centering routine when the vehicle speed goes above 10 km/h (6 mph) . When the vehicle reaches 10 km/h (6 mph) , the EBCM monitors the Steering Wheel Position Sensor inputs (Phase A, Phase B and Analog voltage) to see if the steering wheel is moving. If the steering wheel is not moving for a set period of time then the EBCM assumes the vehicle is going in a straight line. At this point, the EBCM looks at the analog voltage signal and reads the voltage. This voltage, normally around 2.5 V, is then considered the center position and the digital degrees also become zero at the same time. This centering routine is necessary to compensate for wear in the steering and suspension. Wear in the steering and suspension can result in a change in the relationship between the steering wheel and the front wheels. By running the centering routine, the EBCM can compensate for these changes by changing the digital and analog center position.
Conditions for Setting the DTC
The Steering Wheel Position Sensor analog output voltages falls outside 0.2 - 4.8 V range.
Action Taken When the DTC Sets
ABS and TCS remain enabled, Active Handling(TM) is disabled.
Indicators that turn on: Car Icon (TCS indicator)
Messages displayed on the DTC: Service Active HNDLG
Service Vehicle Soon
Diagnostic Aids
The following are possible causes:
A Steering Wheel Position Sensor circuit open.
A Steering Wheel Position Sensor shorted. Perform an inspection of the wiring and of the connectors. Failure to carefully inspect the wiring and the connectors may result in misdiagnosis. Misdiagnosis causes part replacement with reappearance of the malfunction.
Test Description
The numbers below refer to step numbers on the diagnostic table.
Checks for a short to voltage.
Checks for a short to ground.
Checks for an open.
The Best of Corvette for Corvette Enthusiasts
After the alignment, clear all the codes that you have and drive the car. After the drive check to see if the codes have returned. If C1281 and C1288 codes have returned then most likely the SWPS is bad.











