Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

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.

NOTE: Diagnose any APPS out of Range and 5-Volt Supply DTCs before continuing.

Is the DTC active at this time?

Yes
1. Go To step 2).
No
1. Refer to INTERMITTENT CONDITION .
2. Perform 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
1. Replace the APPS Assembly per Service Information. After installation is complete, use a scan tool and select the ETC RELEARN function.
2. Perform POWERTRAIN VERIFICATION TEST .
No
1. Test Complete.