P0649

Speed Control Lamp Control Circuit

Severity

✅ Low

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$11–222 (est.)

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

P0648 P0570 P0571 P0572 P0573