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96 cadillac deville ECM restore PASSLOCK probs
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alsfixit
Novice
Mar 28, 2010, 5:39 PM
Post #1 of 6
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96 cadillac deville ECM restore PASSLOCK probs
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okthis is what i did... i replaced the ECM. this is what i need help with. APPLICATION: All OBD-ll(96 and newer) GM vehicles quipped with the PASSLOCK anti thet system. PROBLEM: Vehicle will not start after the Original ECM has been replaced. (It has been already) CAUSE: The original ECM has a security code(PASSLOCK) stored in its memory that matches the vehicles instrument panel cluster or security module(if so equipped). the replacement ECM can only recieve the PASSLOCK code after it is installed (I installed it already) in the vehicle and relearn performed on the ECM. SOLUTION: Because the procedure is vehicle specific, it will be nessar to reference the vehicle service manual for the correct procedure. ( Thing is that I don't have the service manual to find out how to do it).
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 28, 2010, 5:49 PM
Post #2 of 6
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Re: 96 cadillac deville ECM restore PASSLOCK probs
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PASS KEY II THEFT MODULE RE-LEARN PROCEDURE (IPC PROGRAMMING AFTER REPLACEMENT) Since data contained in the Electrically Erasable Programable Read Only Memory (EEPROM) is specific to the vehicle that the Instrument Panel Cluster (IPC) is in, the EEPROM must be programmed by the authorized service center if the IPC is replaced. It is crucial that all information requested by the authorized service center be correct so they can program the correct data for the vehicle you are working on. When the IPC is received from the authorized service center, it will contain the same IPC override information as the removed IPC as well as the correct VIN. The replacement IPC is configured to learn the PASS-Key II resistor pellet value of the vehicle. The Theft Module Re-learn must be performed before the vehicle will start: THEFT MODULE RE-LEARN PROCEDURE WITH A T50 OR T60 COMPUTER. - Using a T50 to T60 enter Service Programming System (SPS).
- Select Theft Module Re-learn.
- Follow the instructions displayed on the T50 or T60 computer.
- Verify the repair.
THEFT MODULE RE-LEARN PROCEDURE WITHOUT A T50 OR T60 COMPUTER. - Cycle the Ignition Switch to the "RUN" position.
- Wait a minimum of 10 minutes, cycle the Ignition Switch to the "OFF" position.
- Cycle the Ignition Switch to the "RUN" position.
- Wait a minimum of 10 minutes, cycle the Ignition Switch to the "OFF" position.
- Cycle the Ignition Switch to the "RUN" position.
- Wait a minimum of 10 minutes, cycle the Ignition Switch to the "OFF" position.
- Verify the repair.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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alsfixit
Novice
Mar 28, 2010, 6:02 PM
Post #3 of 6
(5199 views)
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Re: 96 cadillac deville ECM restore PASSLOCK probs
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Thank you for all your help.
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Hammer Time
Ultimate Carjunky
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Mar 28, 2010, 6:06 PM
Post #4 of 6
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Re: 96 cadillac deville ECM restore PASSLOCK probs
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This procedure is used when the instrument panel is replaced. You shouldn't need it for the PCM. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Sidom
Veteran
/ Moderator
Mar 28, 2010, 6:11 PM
Post #5 of 6
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Re: 96 cadillac deville ECM restore PASSLOCK probs
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Looks like HT beat me to the punch....... Good 1 Hey shoot me an email when you get a chance......got a question 4u
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Hammer Time
Ultimate Carjunky
/ Moderator
Mar 28, 2010, 6:22 PM
Post #6 of 6
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Re: 96 cadillac deville ECM restore PASSLOCK probs
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Also, this is a PassKey II system with a resister in the key and not a Passlock system so the security codes are not stored in the ECM. It has a separate security module. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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