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CAR WONT START AFTER REPLACING PCM. NO IT STARTED FINE

Customer Question
CAR WONT START AFTER...

CAR WONT START AFTER REPLACING PCM

Mechanic's Assistant: Have you checked the battery, particularly the terminal connections? Are they corroded?

NO IT STARTED FINE BEFORE

Mechanic's Assistant: What is the model/year of your Chevy?

2003 PONTIAK AZTEK

Mechanic's Assistant: Are you fixing your Aztek yourself? What have you tried so far?

YES. IT POPS UP ON THE DASH "SECURITY"

Submitted: 3 months ago.Category: Chevy
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Answered in 1 minute by:
3/21/2018
Chevy Mechanic: Gary, Chevy Technician replied 3 months ago
Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 18,018
Experience: 15 years GM master tech
Verified

Welcome! My name is ***** ***** I will do my best to assist you with this problem.Ask me about added features such as phone contact anytime if you wish !

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Chevy Mechanic: Gary, Chevy Technician replied 3 months ago

was the new PCM programmed to your VIN numer or pre programmed ?

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Customer reply replied 3 months ago
bought it at a junk yard. they matched the numbers on the pcm
Customer reply replied 3 months ago
I also don't have enough money on my card to pay for the phone cALL SORRY
Chevy Mechanic: Gary, Chevy Technician replied 3 months ago

but that PCM MUST be programmed to your vehicles VIN number with a programming scan tool THEN the security relearned following this here

please do not forget to rate me here at Justanswer

1. With a master passkey III key (Black), turn ON the ignition, with the engine OFF.

IMPORTANT: This procedure is not available on vehicles equipped with option code (Z49 or BAE).
If replacing a theft deterrent control module with an GM SPO Replacement Part, perform the procedure to setup a new theft deterrent control module prior to the 30-minute relearn procedure.

2. Observe the Security telltale, after approximately 10 minutes the telltale will turn off.
3. Turn OFF the ignition, and wait 5 seconds.
4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.

5. With a master passkey III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password.

IMPORTANT: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

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Chevy Mechanic: Gary, Chevy Technician replied 3 months ago

if you have any questions please ask

please do not forget to rate me here at Justanswer

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