Diesel Data: Automotive Repair

Test S: The Powertrain Malfunction (Wrench) Warning Indicator Is Never/Always On

PINPOINT TEST S: THE POWERTRAIN MALFUNCTION (WRENCH) WARNING INDICATOR IS NEVER/ALWAYS ON

Normal Operation
The PCM monitors the electronic throttle control (ETC) system and provides the instrument cluster (IC) with the ETC status over the communication network. When a system concern is detected, the PCM provides the instrument cluster (IC) with a signal commanding the instrument cluster (IC) to illuminate the powertrain malfunction (wrench) indicator or display a message if equipped with a message center.

This pinpoint test is intended to diagnose the following:
- PCM
- Instrument cluster (IC)


S1-S2:






S3-S4: