Description

Connector:

POSSIBLE CODE(S)
C11 - 55 -- Electrically shorted or open front left speed sensor circuit or coil.

DESCRIPTION
Code C1155 is generated by the anti-lock electronic control module's detection of an open or shorted wheel speed sensor coil or an open or shorted condition in Circuits 521 (T/O) or 522 (T/BK) between the wheel speed sensor and the anti-lock brake control module. If this fault is detected during the anti-lock electronic control module's self-check after KEY ON, the ABS warning lamp will come on immediately. This is generally an indication of a constant wiring or component fault. If the ABS warning lamp proves out normally and comes on later when the vehicle is driven, this is generally an indication of an intermittent wiring or component fault.

POSSIBLE CONTRIBUTING COMPONENT/VEHICLE WIRING CONCERNS
- Poor connection at front left wheel sensor
- Terminal damage or backout in anti-lock brake control module connector Pins 24 or 25
- Terminal damage or backout in two-pin sensor connector
- Open or shorted front left speed sensor coil
- Open or shorted Circuit 521 (T/O) or 522 (T/BK)
- Improper front left wheel speed sensor cable routing leading to above
- Defective front left wheel speed sensor electrical test circuit in anti-lock brake control module