P2533-IGNITION SWITCH RUN/START POSITION CIRCUIT
For a complete wiring diagram Refer to Section 8W
| Possible Causes |
| CHECK THE ECM POWER AND GROUNDS |
| ENGINE CONTROL MODULE |
Diagnostic Test
1. VERIFY CURRENT DTCTurn the ignition on.
With the scan tool, erase ECM DTCs.
Perform several engine run cycles, turning the ignition off for at least 20 seconds between each engine run cycle.
With the scan tool, read the ECM DTCs.
Did this DTC set again?
Yes
- Go To2
No
- Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
2. CHECK POWER AND GROUNDS
Refer to symptom Checking the ECM Power and Grounds.
Are the ECM Power and Ground circuits o.k.?
Yes
- Replace the ECM in accordance with the Service Information.
- Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
- Repair as necessary.
- Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)