Have a p133 code says it is glow plug controller. Check [...


Have a p133 code says it is glow plug controller. Check [engine](/topics-engine-gmc/) light on, remote start won't work. Mechanic's Assistant: Does the light stay on, or does it blink? Continuous Mechanic's Assistant:...

Have a p133 code says it is glow plug controller. Check [engine](/topics-engine-gmc/) light on, remote start won't work. Mechanic's Assistant: Does the light stay on, or does it blink? Continuous Mechanic's Assistant: What is the make/model/year of your car? 2017 gmc duramax l5p Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far? Still trying to figure it out, doing it myself if possible Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Disconnected ground on [battery](/topics-battery-gmc/), light went out until I tried to remote start it.


Thanks
Automotive Expert
Hi I'm Bart. I'll be helping you today. p133 is not a valid code. Could you please resend the code?

I don't have it with at this time, but it may be a PO 133. Thank you Bart, my name is Ted.It lists it as glow plug controller.
Automotive Expert
Hi Ted. Let me see if I can figure out what code you've got. Just a moment please. p1137? p133a or p133f

No, I had autozone check it. Could be p133a, I know it is not with an A.I meant not F.
Automotive Expert
If this is a P133a, and you have not replaced the glow plugs, then the glow plug module is faulty.

Ok, that confirms what I've found out so far. Thank you Bart.
Automotive Expert
You're welcome. Thanks for using JustAnswer.

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