Question about 1998 Chevrolet Cavalier
In order for a theft deterrent vehicle to run, a password is communicated between the Instrument Panel Cluster (IPC) and the PCM. If a PCM is replaced, the new PCM needs to learn the correct password of the vehicle. When the new PCM is installed, the EEPROM calibration is flashed into the new PCM and the vehicle will learn the new password upon initial ignition ON. If the PC is replaced, the PCM needs to learn the new password from the IPC. The password learn procedure is as follows:
Posted on Jan 09, 2009
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Posted on Jan 02, 2017
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