Hi,
I need the engine size to confirm a few things.
P1684 is only a status that indicates that the PCM memory has been cleared within the last 50 ignition cycles and does not indicate a problem. If you have scanned the computer and cleared it, this would set.
The P1685 is related to the SKIM (Sentry Key Immobilizer Module). This condition exists when the transponder ID (KEY) read by the SKIM does not match any of the transponder ID's stored in the SKIM's memory. Do you have a spare key you could try?
Let me know.
Joe
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Tuesday, January 10th, 2023 AT 8:17 PM