IGN Key W/Wrong Resistor Pellet Code Is Used to Start Engine

The theft deterrent module performs one of the two following actions when you attempt to start the vehicle with a wrong ignition key:
- There are 15 PASS-Key II resistance ranges. The PASS-Key II resistance may be one of the 14 valid but incorrect PASS-Key II resistance ranges. The theft deterrent module will perform the following actions when you attempt to start the vehicle (if the condition is present during an engine start attempt or for 1 second any time after the engine has started):
- Turns on the SECURITY indicator
- Sends a password to the PCM through the fuel enable signal circuit
The password disables fuel delivery to the engine.
- Disables the theft deterrent relay, which disables the starter circuit
- Disables sampling of the PASS-Key II resistance for 3 minutes
The 3 minute time period is called the shut-down period.
Disconnecting the battery will not clear the timer sequence. The timer sequence will resume when battery power is restored. Inserting the proper key during the vehicle shut-down period will not start the engine. The engine will not start until the shut-down period has elapsed.
After the shut-down period, the engine will start if the correct ignition key resistor pellet is used.
- The PASS-Key II resistance may be correct and allow the engine to start. Later during the same ignition cycle, the PASS-Key II resistance may be one of the 14 valid but incorrect resistance ranges. The theft deterrent module will perform the following actions:
- Enters the fail-enable mode
- Turns ON the SECURITY indicator
- Sends a password to the PCM through the fuel enable signal circuit when more attempts to start the engine occur
The password allows the fuel enable circuit to deliver fuel to the engine.
- Enables the theft deterrent relay, which also enables the starter circuit.