C1278

PINPOINT TEST G92304p5: C1278; STEERING ANGLE SENSOR PLAUSIBILITY ERROR

G92304t8: CHECK THE POWER SUPPLY TO THE STEERING ANGLE SENSOR

1. Turn the ignition switch to the OFF position.
2. Disconnect the steering angle sensor electrical connector, IP19.
3. Turn the ignition switch to the ON position.
4. Measure the voltage between IP19, pin 02 (GW) and GROUND.
^ Is the voltage less than 5 volts?

-> Yes
GO to Pinpoint Test G92304t13.

-> No
GO to Pinpoint Test G92304t9.

G92304t13: CHECK THE STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT FOR HIGH RESISTANCE

1. Turn the ignition switch to the OFF position.
2. Disconnect the DSC module electrical connector, JB185.
3. Measure the resistance between IP19, pin 02 (GW) and JB185, pin 39 (GW).
^ Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. This circuit includes harness splice, IPS6. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system for normal operation.

-> No
REPAIR the circuit between the steering angle sensor and battery. This circuit includes the primary distribution box (fuse 96), the ignition switch and the DSC control module. For additional information, refer to the wiring diagrams. Please check part is not on any form of prior authorization before replacement.

G92304t9: CHECK THE GROUND TO THE STEERING ANGLE SENSOR

1. Turn the ignition switch to the OFF position.
2. Measure the resistance between IP19, pin 01 (B) and GROUND.
^ Is the resistance greater than 5 ohms?

-> Yes
GO to Pinpoint Test G92304t14.

-> No
For CAN circuit tests,
Communications Network

G92304t14: CHECK THE STEERING ANGLE SENSOR GROUND CIRCUIT FOR HIGH RESISTANCE

1. Disconnect the DSC control module electrical connector, JB185.
2. Measure the resistance between IP19, pin 01 (B) and JB185, pin 21 (B).
^ Is the resistance greater than 5 ohms?

-> Yes
REPAIR the high resistance circuit. This circuit includes harness splice, IPS7. For additional information, refer to the wiring diagrams, test the system for normal operation.

-> No
For CAN circuit tests,
Communications Network