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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Powertrain Diagnostic Procedures - DRIVEABILITY - Gas - Symptom & Diagnostic Tests (DTCS P0031 To P1899)) >> DRIVEABILITY - Gas - Diagnostic Tests >> P1685-Wrong Or Invalid Key MSG Received From Skim (Gas - Except NGC) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. NO COMMUNICATION WITH SKIM
  2. SKIM TROUBLE CODES SET
  3. NO VIN PROGRAMMED IN THE PCM
  4. INCORRECT VIN IN PCM
  5. INVALID SKIM KEY NOT PRESENT
  6. PCM
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