P0690 Buick
Electronic Control Module Power Relay Sense Circuit High
Buick
P0691 Buick
Cooling Fan 1 Control Circuit Low
P0692 Buick
Cooling Fan 1 Control Circuit High
P0686 Buick
Engine Control Module Power Relay Control Circuit Low
P0687 Buick
Engine Control Module Power Relay Control Circuit High
P0660 Buick
Intake Manifold Tuning Valve Solenoid Control Circuit
P0685 Buick
Engine Control Module Power Relay Control Circuit Open
P0650 Buick
Malfunction Indicator Lamp Control Circuit Malfunction
P0652 Buick
5V Reference 2 Circuit Low Voltage
P0653 Buick
5V Reference 2 Circuit Low Voltage