Remote Keyless entry system Will not unlock
If you encounter a concern regarding doors not
unlocking when using the Remote Keyless Entry System, check
for possible installation of aftermarket LED light bulbs. These
bulbs may produce electrical noise that may interfere with the
operation of the Remote Keyless Entry System.
If you determine the Remote Keyless Entry System door unlock
malfunction is caused by an aftermarket accessory,
do not attempt any repairs to the vehicle.
PCM Reprogramming failure
If PCM reprogramming is required, follow the procedure below. PCM may be blanked if the procedure below is not followed.
PCM Reprogramming Procedure
1. Reboot IDS to clear memory before reprogramming.
2. Using current IDS software, reprogram the PCM to the latest calibration by following the “Module Reprogramming”
Always update the IDS tool fi rst, then follow on-screen instructions to download the needed calibration fi le for
It is not necessary to remove any fuses or relays during PCM reprogramming when the IDS screen prompts you
to do so. You may accidentally stop power to one of the PCM terminals and cause the PCM to be blanked, or you
may receive error messages during the IDS reprogramming procedure.
IDS shows the calibration part numbers after programming the PCM.
PCM calibration part numbers and fi le names listed in any Service
Bulletin may change due to future releases of IDS software, and
additional revisions may be made to those calibrations for service
When reprogramming a PCM, IDS will always display the “latest”
calibration P/N available for that vehicle. If any calibration has
been revised/updated to contain new information for a new
service concern/issue, it will also contain all previously released
When performing this procedure, we recommend
using the “Power Supply” mode in the Battery
Management System to keep the vehicle battery
up to capacity. If a different charger is used, make
sure it does not exceed 20 AMPS. If it exceeds 20
AMPS, it could damage the VCM.
After performing the PCM Reprogramming Procedure, verify the
repair by starting the engine and making sure there are no MIL
illumination or abnormal warning lights present.
If any DTCs remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting
section of the Workshop Manual.
After PCM reprogramming, it is no longer necessary to road test the vehicle to “relearn” KAM (Keep Alive Memory).
I hope it can help you.
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