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Tests AE: DTC C1278 Steering Wheel Angle 1 and 2 Signal Faulted

PINPOINT TEST AE: DTC C1278 STEERING WHEEL ANGLE 1 AND 2 SIGNAL FAULTED


AE1-AE2:






AE3-AE4:






Normal Operation
The adaptive front lighting module receives steering wheel angle information from the steering wheel angle sensor module. If the adaptive front lighting module receives faulty steering wheel angle data from the steering wheel angle sensor module, DTC C1278 is set.

This pinpoint test is intended to diagnose the following:
- Adaptive front lighting module
- Steering wheel angle sensor module