Pinpoint Test AF: The Shift Indicator Is Never/Always On (Shelby GT500 Only)

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AF: The Shift Indicator Is Never/Always On (Shelby GT500 Only)

Normal Operation

The shift indicator is used to inform the driver of shift points that provide the highest fuel economy. The shift indicator is controlled by the Instrument Panel Cluster (IPC) based upon a shift message sent from the PCM over the High Speed Controller Area Network (HS-CAN) communication bus lines.

NOTE: If DTC U0100:87 is set in the IPC (Instrument Panel Cluster) , other observable symptoms can be an inoperative speedometer, tachometer or odometer.

This pinpoint test is intended to diagnose the following:

- PCM

- IPC (Instrument Panel Cluster)

PINPOINT TEST AF : THE SHIFT INDICATOR IS NEVER/ALWAYS ON (SHELBY GT500 ONLY)

AF1 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND PCM SELF-TESTS

- Retrieve the recorded DTCs from the PCM continuous and on-demand self-tests.

Are any DTCs retrieved?

Yes
REFER to Computers and Control Systems Information.

No
GO to AF2.

AF2 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

- Check for recorded DTCs from the IPC (Instrument Panel Cluster) self-test.

Are any DTCs recorded?

Yes
For DTC U0100:87, GO to Pinpoint Test AQ Pinpoint Test AQ: DTC U0100:87.

For all other DTCs, REFER to DTC Charts Instrumentation, Message Center and Warning Chimes.

No
GO to AF3.

AF3 CARRY OUT THE IPC (Instrument Panel Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: IPC (Instrument Panel Cluster) DataLogger.

- Select the IPC (Instrument Panel Cluster) all lamps (ALL_LAMP) active command while monitoring the up shift indicator.

Does the shift indicator turn on when commanded on and turn off when commanded off?

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

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