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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1490 (Rear Wheel Steering System) >> Diagnostic Information and Procedures >> DTC C0538: Rear Wheel Steering Gear Motor Does Not Respond To Current Inputs Properly >> Circuit Description

Circuit Description

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The rear wheel steering module provides the current that activates the rear wheel steering motor actuator control circuits. Phase A, Phase B, and Phase C are the input circuits to the steering gear motor assembly. In its active state, the output current is pulse width modulated with up to 85-amps at 12 volts, with a normal range of 20 to 50-amps. When the rear wheel steering control module does not see the rear wheel steering gear motor respond to the current inputs properly the rear wheel steering control module will set a DTC C0538.

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