P1002 OBD Code Definition:
P1002 Ignition Key Off Timer Performance Too Slow
P1002 OBD Code Description:
Possible causes
– Faulty Ignition Switch
– Ignition Switch harness is open or shorted
– Ignition Switch circuit poor electrical connection
– Faulty Body Control Module (BCM)
– Ignition Switch harness is open or shorted
– Ignition Switch circuit poor electrical connection
– Faulty Body Control Module (BCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1002 OBD Code Description
The Engine Control Module (ECM) has detected a power-on time issue when the ignition key is turned off