Circuit Description
When an ignition key is inserted in the ignition switch, the terminals located in the steering column lock cylinder contact the resistor pellet in the key. The IPC measures the resistance of the key pellet and then compares the resistance to the one stored in the memory.
Conditions for Setting the DTC
The IPC does not have a valid key pellet resistance in the memory, and a correct one is not learned within 2 seconds of power up.
DTC Will Clear When
The IPC learns a valid key pellet resistance and stores the resistance in memory.
Action Taken When the DTC Sets
The IPC displays the PROGRAM PASSKEY message on the driver message center.
Diagnostic Aids
| • | If B2710 is also set current, diagnose that DTC first. |
| • | This DTC sets on replacement IPCs until the first valid key pellet is detected by the IPC. |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Instrument Cluster Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Is the DTC B2782 set current? | -- | Go to Step 3 | Go to Step 4 |
3 | Replace the other ignition key. Did you complete the repair? | -- | -- | |
4 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Did you complete the repair? | -- | -- |
