Defect Code 20
Defect Code 20:
*D* Defect code memory: 20 Speed Signal:
Explanation: This defect code is stored when the speed signal received by the control unit is faulty.
Possible cause: Wire from rear axle contact to instrument cluster damaged, wire from instrument cluster to EDC control unit damaged.
Troubleshooting: Check wire and repair if necessary: From 26-pin control unit connector Pin 13 to instrument cluster.
If defect is not rectified, check rear axle contact and renew if necessary.
If defect is still not rectified, check speed-A signal: Simulation in diagnostic program instrument cluster.