Pinpoint Test Q: The LH/RH Turn Signal, High Beam Or Fog Lamp Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test Q: The LH/RH Turn Signal, High Beam or Fog Lamp (MKX Only) Indicator Is Never/Always On

Normal Operation

When the multifunction switch is in the LH or RH TURN position, a turn signal on/off request is sent to the Instrument Panel Cluster (IPC) from the Body Control Module (BCM) over the High Speed Controller Area Network (HS-CAN). Upon receipt of the applicable turn signal on/off request, the IPC (Instrument Panel Cluster) flashes the turn signal indicator on and off.

When the high beams are turned on, the BCM (Body Control Module) sends a high beam indicator on request to the IPC (Instrument Panel Cluster) through the HS-CAN (High Speed Controller Area Network) to illuminate the high beam indicator.

When the fog lamps are turned on, the BCM (Body Control Module) sends a fog lamp indicator on request to the IPC (Instrument Panel Cluster) through the HS-CAN (High Speed Controller Area Network) to illuminate the fog lamp indicator.

NOTE: The headlamp switch must be in the HEADLAMP on, PARKING LAMPS on or AUTOLAMP on position for the fog lamps to operate.

If the high beam or fog lamp indicator request status message is missing for less than 5 seconds, the IPC (Instrument Panel Cluster) defaults the high beam or fog lamp indicator to its last state (on or off) based upon the last known good message received. If the high beam or fog lamp indicator request status message is missing for 5 seconds or longer, the IPC (Instrument Panel Cluster) sets DTC U0140:00 in continuous memory and defaults the high beam or fog lamp indicator off.

This pinpoint test is intended to diagnose the following:

- Turn signal concern

- High beam concern

- Fog lamp concern

- BCM (Body Control Module)

- IPC (Instrument Panel Cluster)

PINPOINT TEST Q : THE LH/RH TURN SIGNAL, HIGH BEAM OR FOG LAMP (MKX ONLY) INDICATOR IS NEVER/ALWAYS ON

Q1 DETERMINE THE FAULT CONDITION

- Place the headlamp switch in the HIGH BEAM position.

- Ignition ON.

- Observe the high beam indicator.

Does the high beam indicator illuminate?

Yes
For the LH/RH turn indicator, GO to Q4.
For the fog lamp indicator, GO to Q6.

No
LEAVE the headlamp switch in the HIGH BEAM position. GO to Q2.

Q2 CHECK THE HIGH BEAM HEADLAMPS OPERATION

- Observe the high beam headlamps.

Do the high beam headlamps operate correctly?

Yes
GO to Q3.

No
REFER to Lighting and Horns.

Q3 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) high beam indicator (HIGH_BEAM).

- Command the high beam indicator on and off. Observe the high beam indicator.

Does the high beam indicator illuminate when commanded on and turn off when commanded off?

Yes
GO to Q8.

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

Q4 CHECK THE LH OR RH TURN SIGNAL LAMPS OPERATION

- Ignition ON.

- Operate the hazard lamp function. Observe the exterior LH or RH turn signal lamps.

Do the turn signal lamps operate correctly?

Yes
GO to Q5.

No
REFER to Lighting and Horns.

Q5 CARRY OUT THE IPC (Instrument Panel Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

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

- Select the IPC (Instrument Panel Cluster) RH or LH turn signal indicator (RH_TURN_L) or (LH_TURN_L) active command. Command the RH or LH turn signal indicator on and off. Observe the LH or RH turn signal indicator.

Does the LH or RH turn signal indicator illuminate when commanded on and turn off when commanded off?

Yes
GO to Q8.

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

Q6 CHECK THE FOG LAMPS OPERATION

- Operate the fog lamps.

Do the fog lamps operate correctly?

Yes
GO to Q7.

No
REFER to Lighting and Horns.

Q7 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) high beam indicator (F_FOG_IND).

- Command the fog lamp indicator on and off. Observe the fog lamp indicator.

Does the fog lamp indicator illuminate when commanded on and turn off when commanded off?

Yes
GO to Q8.

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

Q8 RETRIEVE THE RECORDED DTCs FROM THE BCM (Body Control Module) SELF-TEST

- Check for recorded BCM (Body Control Module) DTCs from the self-test.

Are any DTCs recorded?

Yes
REFER to Body Control Systems.

No
GO to Q9.

Q9 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

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

Is DTC U0140:00 recorded?

Yes
GO to Pinpoint Test AU. Pinpoint Test AU: DTC U0140:00

No
INSTALL a new BCM (Body Control Module). TEST the system for normal operation.