Curiosii for ever!: Car repair manuals for everyone.

C1241





CIRCUIT DESCRIPTION
The Speed dependent Steering System (Magnasteer(R)) incorporates its controller into the EBTCM. The EBTCM controls the amount of current supplied to the Magnasteer(R) actuator based on input from the wheel speed sensors.
Magnasteer(R) 2 also uses inputs from the wheel speed sensors along with added input from the Steering Wheel Position Sensor.

CONDITIONS FOR SETTING THE DTC
- One or both of the Magnasteer(R) actuator circuit wires become open or shorted.

ACTION TAKEN WHEN THE DTC SETS
- A malfunction DTC is stored. No ABS or Car Icon (TCS indicator) indicators are turned on but Magnasteer(R) is disabled. ABS/TCS remains functional.

CONDITIONS FOR CLEARING THE DTC
- Condition for DTC is no longer present and scan tool clear DTC function is used.
- Fifty ignition cycles have passed with no DTC(s) detected.

DIAGNOSTIC AIDS
- It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
- An intermittent malfunction can be caused by poor connections, broken insulation, or a wire that is broken inside the insulation.
- If an intermittent malfunction exists refer to Testing for Electrical Intermittents

TEST DESCRIPTION

Page 1 Of 2:




Page 2 Of 2:





The numbers below refer to step numbers on the diagnostic table.

4. Checks for an open in the Magnasteer(R) actuator or Magnasteer(R) CKT.
12. Checks for a short to ground in the Magnasteer(R) actuator or Magnasteer(R) CKT.
19. Checks for a short to voltage in the Magnasteer(R) CKT.
21. Checks for a short to voltage in the Magnasteer(R) CKT.