E: C1222, C1233, C1234, C1235, and C1236 Wheel Speed Sensor Input Signal Missing/Mismatch

Pinpoint Test E: DTCs C1222, C1233, C1234, C1235, and C1236 Wheel Speed Sensor Input Signal Missing/Mismatch

Test E1:

Test E2:

Test E2-E4:

Normal Operation
The wheel speed sensor and sensor ring generate a square wave signal to the Antilock Brake System (ABS) module that is proportional to wheel speed. The ABS module compares wheel speed inputs from all wheel speed sensors to determine an impending wheel lockup. Incorrect tire size can set these DTCs as well.

Possible Causes
^ wheel speed sensor
^ ABS module

CAUTION: Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.