1999 Pontiac Grand Prix "reset pcm" Questions

...Hello! To reset the vehicle's PCM you simply need to disconnect the negative battery cable from the battery and leave it disconnected for 30 minutes. Hope this helps and thanks for using

...pcm reset? Got New part Recently got in touch from the last owners, and told me the computer needed to reset to know the new parts are in. Now I need to know how most likely it may need to be ...

negative battery cable. The PCM will reset the IAC valve the next time the ignition switch is turned ON and then OFF . Start the engine and allow to warm to operating temperature to check idle quality

reset. CHECK FOR VACUUM LEAK AT THE THROTTLE BODY GASKET.OR THE THE THROTTLE LINKAGE STICKING.SCAN CAR TO CHECK IDLE SPEED CONTROL.IF IDLE SPEED CONTROL IS THE PROBLEM.BUY IT AND LET DEALERSHIP PUT IT

...reset all codes includeing security codes by GM - was a short term fix. Propably the VSS - vehicle speed sensor . The PCM uses this input to control shifting an speedometer information . Or a wiring ...

...the battery negative cable for 15 minutes. This will reset the fail counter to 0. The PCM will contine to moniter the catilyst and set a light only if the convertor fails the test again.Good ...

Reset the alarm and engine immobilizer. Or you need an auto electrician to diagnose electronically using a pro grade scan tool computer. https://www.google.com/search?q=mobile+auto+electrician+near+me

...reset but warning you if your trying to get the car through emissions your gonna have to drive the car 50 or 100 miles after you disconnect the battery each time.. Or simply disconnect the Negative ...

reset the system and can get your vehicle back to it's normal operation. This thing really happens and reconnecting the positive battery connector serves like a jumpstart to the vehicle's PCM

...reset my pcm on 2004 grandprix fuel pump shut down and computer shut down Sounds like you lost the computer. You can try t removing battery cables and build then together to drain the power for the ...