4. Apps #1 Signal Circuit Shorted To 5-Volt Supply Circuit

Turn the ignition off.

Measure the resistance of the APPS #1 Signal circuit and the 5-Volt Supply circuit at the APPS harness connector.

Fig 1: Measuring Resistance Of APPS #1 Signal Circuit At 5-Volt Supply Circuit At APPS Harness Connector

Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 100 ohms? 

1. Yes  >> Repair the APPS #1 Signal circuit for a short to the 5-Volt Supply circuit.

   See POWERTRAIN VERIFICATION TEST - VER 2  .

2. No  >> Go To 5