Suzuki Vitara (LY) 2016-2017 · Service Manual Cruise Control · Diagnostic Information and Procedures

DTC P0649

Precautions: Precautions for Diagnosing Trouble · General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P0649: Speed Control Lamp Control Circuit
“CRUISE / SET / LIMIT indicator lighting signal” from combination meter remains unchanged even if ECM transmits request to turn on or turn off “CRUISE / SET / LIMIT indicator light control signal” to combination meter through CAN communication.
•CAN communication circuit
•Combination meter
•ECM
DTC Troubleshooting
Step Action Yes No
1
DTC check
1)Check control modules communicating by CAN for DTCs.
Is there any CAN-DTC(s) detected?
Go to troubleshooting for applicable DTC.
Replace combination meter and recheck DTC. If DTC P0649 is still detected, replace ECM and recheck DTC.
•Combination meter: icon 
•ECM
—M16A model: icon 
—K14C model: icon 
—D16AA model: icon