P2166

P2166-ACCELERATOR PEDAL POSITION SENSOR 1 MAXIMUM STOP PERFORMANCE

For a complete wiring diagram refer to: Electrical Diagrams

When Monitored
Ignition on. During in plant mode the APP Sensors need to be checked to make sure that idle and full pedal travel can be reached on both sensors.

Set Condition
APPS No.1 has failed to achieve the required maximum value during In Plant testing. One trip fault and the code will set within 5 seconds. Engine will only idle.

Possible Causes
- IN PLANT TEST FAILURE
- APPS RELEARN

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Diagnostic Test
1. IN PLANT TEST FAILURE





Ignition on, engine not running.

NOTE: This DTC is set when the APP Sensors are learned in plant but do not reach the Minimum or Maximum voltage range.

With a scan tool read DTCs.
With the scan tool, erase DTCs.
Start the engine. With the scan tool, read DTCs.

Is the DTC active at this time?
Yes >> Go To 2
No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
2. APPS RELEARN
With a scan tool select the ETC RELEARN function.
Next, erase DTCs. Start the engine.

Does the DTC return?
Yes >> Replace the APPS Assembly per Service Information. After installation is complete, use a scan tool and select the ETC RELEARN function.
Perform POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
No >> Test Complete.