Pinpoint Test AD: The Charging System Warning Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AD: The Charging System Warning Indicator Is Never/Always On (Fusion Non-Hybrid)

Normal Operation

The charging system indicator is controlled by the Instrument Panel Cluster (IPC) based upon data received from the PCM over the High Speed Controller Area Network (HS-CAN) communication bus.

If the charging system message is missing for less than 5 seconds, the charging system indicator remains in the last indication mode (on or off). If the charging system message is missing for more than 5 seconds, the IPC (Instrument Panel Cluster) sets DTC U0100:00 in continuous memory and defaults the charging system warning indicator on.

NOTE: If DTC U0100:00 is set in the IPC (Instrument Panel Cluster) , other observable symptoms may be an inoperative speedometer, tachometer or odometer.

This pinpoint test is intended to diagnose the following:

- Charging system concern

- PCM

- IPC (Instrument Panel Cluster)

PINPOINT TEST AD : THE CHARGING SYSTEM WARNING INDICATOR IS NEVER/ALWAYS ON (FUSION NON-HYBRID)

AD1 CARRY OUT THE IPC (Instrument Panel Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

- Ignition ON.

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

- Select the IPC (Instrument Panel Cluster) charging system warning indicator (CHARGE_LMP) active command. Command the charging system warning indicator on and off while observing the charging system warning indicator.

Does the charging system warning indicator illuminate when commanded on, and turn off when commanded off?

Yes
GO to AD2.

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

AD2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO (Key ON Engine OFF) SELF-TEST

- Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.

Are any charging system DTCs recorded?

Yes
REFER to Charging System.

No
GO to AD3.

AD3 CHECK THE CHARGING SYSTEM OPERATION

- Check the charging system operation.

Does the charging system operate correctly?

Yes
GO to AD4.

No
REFER to Charging System.

AD4 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

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

Is DTC U0100:00 recorded?

Yes
GO to Pinpoint Test BF. Pinpoint Test BF: DTC U0100:00

No
INSTALL a new PCM. TEST the system for normal operation.