Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1685 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
What are Code Possible Symptoms?
Engine Light ON (or Service Engine Soon Warning Light)
Code P1685 Description
The Diagnostic Trouble Code (DTC) P1685 indicates a problem related to either your ignition key or your Immobilizer Module. This code can be triggered by various issues, such as an incorrect Vehicle Identification Number (VIN) stored in the Powertrain Control Module (PCM), the use of an invalid Sentry Key Immobilizer Module (SKIM) key, a lack of communication with the SKIM, absence of a VIN programmed in the PCM, a malfunctioning SKIM, or the presence of defective PCM or SKIM trouble codes.
P1685 Code - Wrong or Invalid Key Message Received from SKIM
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