P1001-IGNITION KEY OFF TIMER PERFORMANCE - TOO FAST

For a complete wiring diagram Refer to Section 8W



Possible Causes
  
BODY CONTROL MODULE
  
BODY CONTROL MODULE POWER AND GROUNDS
  
CHECKING FOR OTHER DTCS
  
CHECKING THE ECT OPERATION
  
IGNITION SWITCH
  
INTERMITTENT CONDITION
  



Diagnostic Test

1.CHECK FOR ACTIVE DTC

NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed.


NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC.








Did this DTC set again?

Yes
  • Go To2


No

2.CHECKING FOR OTHER DTCS



NOTE: Any ECM communication related DTC's in the FCM or BCM must be diagnosed and corrected before continuing to diagnose this DTC.



Are there any ECM communication related DTC's in the FCM or BCM?

Yes


No
  • Go To3

3.CHECKING THE ECT OPERATION



Is the ECT Sensor operating correctly?

Yes
  • Go To4


No

4.IGNITION SWITCH





Is the Ignition Switch functioning properly?

Yes
  • Go To5


No

5.VERIFY THAT THE BCM IS ACTIVE ON THE BUS




Is the BCM active on the bus?

Yes
  • The condition that caused the code to set is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
  • Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).


No