C1241

CIRCUIT DESCRIPTION
The Magnetic Steering Variable Assist (MSVA) system, also known as Magnasteer(R), uses inputs from the ABS wheel speed sensors to determine the desired amount of power steering assist. The speed dependent Steering System is incorporated into the EBTCM. The EBTCM controls the amount of current supplied to the MSVA actuator based on inputs from the wheel speed sensors.

CONDITIONS FOR SETTING THE DTC
DTC C1241 is set when the ignition voltage is between 17.0 and 10.5 volts, and either of the MSVA steering system actuator circuits (CKT 1787 or CKT 345) become open or shorted.

ACTION TAKEN WHEN THE DTC SETS
- A Malfunction DTC C1241 is stored within the EBTCM.
- The Antilock Brake System (ABS), Enhanced Traction Control (ETS), or the Traction Control System (TCS) indicator lamps are NOT illuminated.
- The MSVA system is disabled.
- The ABS/ETS/TCS remains functional.

CONDITIONS FOR CLEARING THE DTC
1. A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
2. You may use a scan tool in order to clear the DTC.

DIAGNOSTIC AIDS
- Possible causes for DTC C1241 to set are:
- One or both MSVA circuits open.
- One or both MSVA circuits short to battery.
- One or both MSVA circuits short to ground.

- 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.
- If an intermittent malfunction exists refer to Intermittent and Poor Connections Diagnosis in Diagnostic Aids.
- Inspect all of the circuitry that may cause the intermittent complaint for the following conditions:
- Broken wire inside the insulation
- Backed out terminals
- Improper mating
- Improperly formed terminals
- Damaged terminals
- Poor terminal to wiring connections
- Physical damage to the wiring harness

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DTC C1241 MAGNASTEER MALFUNCTION