code 1661
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
If the SES light is actually coming on I honestly don't know. Usally that code sets when there is an open in the SES circuit I haven't seen any GM vehicles set that code when the light works. If you clear the code, does it reset?
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
The only other thing I can think of is a faulty PCM, or the SES control
circuit is shorted to ground (circuit comes out of PCM connector 4 pin 9
brown wire with white tracer). You could try cutting the wire at close to the PCM if the light goes out the PCM is at fault ifthe light stays on it's shorted to ground (PCM controls ground side of circuit).
circuit is shorted to ground (circuit comes out of PCM connector 4 pin 9
brown wire with white tracer). You could try cutting the wire at close to the PCM if the light goes out the PCM is at fault ifthe light stays on it's shorted to ground (PCM controls ground side of circuit).
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