P0649

DTC P0649: Speed Control Lamp Control Circuit

Wiring Diagram

Refer to Symptom Related Diagnostic Procedures Troubleshooting for Communication Error with Scan Tool Using CAN.

DTC Detecting Condition and Trouble Area






DTC Troubleshooting



1. DTC check

Check DTC related to CAN communication for ECM, TCM (CVT model), SDM (Advanced air bag model), 4WD control module ABS / ESP(R) control module, BCM and keyless stat control module (with keyless start system).

Is there any CAN-DTC(s) detected?
YES
Go to Troubleshooting for CAN-DTC.
NO
Replace combination meter and recheck DTC. If DTC P0649 is still detected, substitute a known-good ECM and recheck.