C1155 Left Front Brake Antilock Sensor Diagnosis

POSSIBLE SOURCE(S):
- Poor connection at left front brake antilock sensor.
- Terminal damage or backout in antilock brake control module connector Pins 35 or 11.
- Terminal damage or backout in two-pin sensor connector.
- Open or shorted left front brake antilock sensor.
- Open or shorted Circuit 521 (T/O) or 522 (T/BK).
- Improper left front brake antilock sensor cable routing leading to above.
- Defective left front brake antilock sensor electrical test circuit in antilock brake control module.

ACTION(S) TO TAKE:
- Go to Pinpoint Test J.