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

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

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 IC with a signal commanding the 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
- IC



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

-------------------------------------------------
S1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PCM SELF-TESTS


- Check for recorded PCM DTCs from the continuous and on-demand self-tests.
- Are any DTCs recorded?

Yes
REFER to Computers and Control Systems Information.

No
GO to S2.

-------------------------------------------------
S2 CARRY OUT THE IC INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC powertrain malfunction (wrench) warning indicator (ETC_IND) active command on and off while monitoring the powertrain malfunction (wrench) warning indicator.
- Does the powertrain malfunction (wrench) warning indicator illuminate when commanded on, and turn off when commanded off?

Yes
INSTALL a new PCM. TEST the system for normal operation.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

-------------------------------------------------