P0649

DTC P0649: Speed Control Lamp Control Circuit

Wiring Diagram

Refer to [1][2]Cruise Control Cruise Control System Wiring Diagram.

DTC Detecting Condition and Trouble Area






DTC Troubleshooting

1. DTC check

Check control modules communicated by means of CAN for DTCs.

Is there any CAN-DTC(s) detected?
YES -
Go to applicable DTC diag. flow. CAN DTC (Lost Communication and Communication Bus Off) Table
NO -
Replace combination meter and recheck DTC. If DTC P0649 is still detected, substitute a known-good ECM and recheck.