P0649
Speed Control Lamp Control Circuit
P0649 is an OBD-II diagnostic trouble code meaning: Speed Control Lamp Control Circuit. Common causes: open or short circuit in the lamp control circuit, burnt out led or indicator lamp. Estimated repair cost: $11–222.
Symptoms
- Check Engine light comes on
- Cruise control light does not light up when activated
- The lamp is constantly on without activating the system
- There may be problems activating the cruise control itself
- Other cruise control system codes
Causes
- Open or short circuit in the lamp control circuit
- Burnt out LED or indicator lamp
- Cruise control module malfunction
- ECU or BCM malfunction
- Oxidation of control circuit connectors
How to Fix
- Check the operation of the cruise control lamp when the system is activated
- Check the cruise control fuse
- Inspect the wiring and connectors of the lamp control circuit
- Check if the cruise control itself is functional
- In case of malfunction - diagnostics of the cruise control module or ECU
Related codes
Error P0649 by Vehicle Brand
FAQ
What does the P0649 code mean?
P0649 is an OBD-II diagnostic trouble code that indicates: Speed Control Lamp Control Circuit
What causes a P0649 error code?
The most common causes of P0649 include: Open or short circuit in the lamp control circuit; Burnt out LED or indicator lamp; Cruise control module malfunction; ECU or BCM malfunction.
How do I fix a P0649 diagnostic trouble code?
To fix P0649: Check the operation of the cruise control lamp when the system is activated. Check the cruise control fuse. Inspect the wiring and connectors of the lamp control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0649?
Yes, but get it checked soon
How much does it cost to fix P0649?
The estimated repair cost for P0649 is $11–222. Actual cost depends on your vehicle, location, and labor rates.
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