Error code
OBD2 P0649
OBD2P0649
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Speed Control Lamp Control Circuit.
Severity
moderateCan drive, but the cruise control feature may not work properly.
Summary
P0649 indicates an issue with the cruise control lamp circuit, which is part of the electronic system controlling the speed control feature in vehicles.
Common Causes
- Wiring issues
- Poor connection
- Faulty bulb
- ECM (Engine Control Module) problem
Fixes
FAQ
What does P0649 mean?
P0649 indicates a problem with the cruise control lamp circuit, which is part of the system that controls the speed control feature.
How do I fix P0649?
Common fixes include checking and repairing wiring issues, ensuring good connections, replacing faulty bulbs, or addressing problems with the ECM. Specific steps may vary depending on the exact cause.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0600Serial Communication Link
- P0601Internal Control Module Memory Check Sum Error
- P0602Control Module Programming Error
- P0603Internal Control Module Keep Alive Memory (KAM) Error
- P0604Internal Control Module Random Access Memory (RAM) Error
- P0605Internal Control Module Read Only Memory (ROM) Error
- P0606ECM/PCM Processor
- P0607Control Module Performance
- P0608Control Module VSS Output 'A'
- P0609Control Module VSS Output 'B'
- P0610Control Module Vehicle Options Error
- P0611Fuel Injector Control Module Performance