DP10 - DTC 1500: Visual Inspection

Diagnostic Trouble Code (DTC) 1500 indicates the VSS input signal was intermittent.

Possible Causes:
- Intermittent VSS connections.
- Intermittent open in VSS harness circuit(s).
- Intermittent short in VSS harness circuit(s).
- Damaged VSS.
- Damaged PCM.

- Key Off.

- Visually inspect the VSS and VSS harness circuits for any potential failures. Use the following check list for reference:

- Loose VSS connector.
- Pushed out VSS connector pins.
- Damaged VSS wiring harness insulation.
- Incorrect harness routing.
- Incorrect VSS mounting.

- Did the visual inspection reveal a potential failure?

YES -- SERVICE fault as necessary. COMPLETE PCM reset to clear DTCs. RUN VSS Drive Cycle in DP20 to verify the repair. DP20 - VSS Drive Cycle Test

NO -- RECONNECT all components. Unable to duplicate or identify fault at this time. Go to Pinpoint Test Step Z1 with the following data: the VSS check list and list of Possible Causes. Z1 - Intermittent Test Procedure