Test F: DTC C1277 and C1278 - Steering Wheel Angle 1 and 2 Circuit Failure/Signal Faulted
PINPOINT TEST F: DTC C1277 AND C1278 - STEERING WHEEL ANGLE 1 AND 2 CIRCUIT FAILURE/SIGNAL FAULTEDRefer to Vehicle/Diagrams, Vehicle Dynamic Systems for schematic and connector information.
Normal Operation
The steering position sensor monitors the steering wheel position when the toothed-wheel on the steering shaft passes through the magnetic field produced by the sensor.
The steering wheel position (in degrees) is sent to the anti-lock brake system (ABS) module along circuit VCS06 (GY/BN) and circuit VCS07 (VT/OG). Voltage is supplied by the ABS module along circuit CCS01 (VT/WH) and ground is provided by the ABS module along circuit RCS02 (BU/WH).
Possible Causes
^ Circuit open
^ Circuit shorted
^ Steering position sensor
^ ABS module
F1-F2:
F3-F4:
F5-F7:
F7-F8:
F9:
