Where is the pcm/ecm on a 1994 mercury grand marques i need to remov one and replace

40

Asked by Nasser Oct 14, 2016 at 10:44 PM about the 1994 Mercury Grand Marquis GS Sedan RWD

Question type: Maintenance & Repair

I need to replace it

4 Answers

58,575

Interior - Firewall - Above driver's left foot - how do you know that you need to replace it - most diagnostics are done by disconnecting the PCM and checking continuity of the component/wiring at the PCM connector.

2 people found this helpful.
40

i found it and took it out i replaced it with the exact year make and model one i got at pull apart and still not starting i don't know what to do i tried to take the pcm to an autozone to have it testes but they know nothing plz help if you can

4 people found this helpful.

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