DTC C1020: Abnormality in RL wheel speed sensor circuit: Notes

Fig 1: Wheel Speed Sensor Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION:

• If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to TROUBLE CODE DIAGNOSIS ).
• Whenever ECU is replaced, ensure that the CAN bus lines are normal.