C0236 GMC - Missing Rear Speed Sensor Signal
- Faulty Rear Speed Sensor
- Rear Speed Sensor harness is open or shorted
- Rear Speed Sensor circuit poor electrical connection
- Faulty EBCM
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C0236 Gmc DescriptionAs the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake Control Module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.
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