C1237

DTC C1237/37 SPEED SENSOR ROTOR FAULTY

CIRCUIT DESCRIPTION

DTC Detecting Condition:

This code is output when a difference in tire size, foreign matter attached to a speed sensor tip or a sensor rotor, or a missing rotor serration is detected.

This code may be output when a malfunction in the terminal of the speed sensor circuit connector or wire harness is detected.

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INSPECTION PROCEDURE