Test E: DTC C1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR), Speed Wheel Input Signal Missing

Pinpoint Test E: DTC C1233 (LF), C1234 (RF), C1235 (RR), C1236 (LR), Speed Wheel Input Signal Missing
Refer to Vehicle/Diagrams, Vehicle Dynamic Systems for schematic and connector information.

Normal Operation
The wheel speed sensors generate a square-wave signal that is sent to the ABS module that is proportional to wheel speed. The ABS module compares the wheel speed inputs from all wheel speed sensors to determine an impending lockup.






This pinpoint test is intended to diagnose the following:
^ Wiring, terminals or connectors
^ Wheel bearings
^ Wheel speed sensor ring
^ Wheel speed sensor
^ ABS module

E1-E4:

E4 (Continued)-E6:

E6 (Continued)-E8:

E8 (Continued)-E12:

E12 (Continued)-E16: