Inspection Procedure 8: The combination meter lamp does not illuminate normally or the multi information display is not displayed normally.

caution

Before replacing the combination meter, be sure to check that the power supply circuit, earth circuit, and communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

When the signal from each ECU is received via the CAN communication, the combination meter illuminates the corresponding display lamp or warning lamp, or has the multi information display to display corresponding information.
If the lamps do not illuminate or the multi information display does not display normally, the wiring harness and connector(s) in the CAN bus lines, or the ETACS-ECU or the combination meter may have a problem.

PROBABLE CAUSES

Malfunction of combination meter
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics

Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 2.

Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting

STEP 2. M.U.T.-III diagnosis code

Check again if the diagnosis code is set to the combination meter.

Q. Is the diagnosis code set?

Refer to

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code

Check again if the diagnosis code is set to the engine-ECU, 4WD-ECU, ABS-ECU, ASC-ECU, KOS-ECU, SRS-ECU, ETACS-ECU and A/C-ECU.

Q. Is the diagnosis code set to the any of the above?

Set to the engine. : Troubleshoot the engine control system. Refer to GROUP 13A - Troubleshooting

.

Set to the 4WD-ECU. : Troubleshoot the 4WD. Refer to GROUP 27C - Troubleshooting

.

Set to the ABS-ECU. : Troubleshoot the ABS. Refer to GROUP 35B - Troubleshooting

.

Set to the ASC-ECU. : Troubleshoot the ASC. Refer to GROUP 35C - Troubleshooting

.

Set to the KOS-ECU. : Troubleshoot the KOS. Refer to GROUP 42B - Troubleshooting

.

Set to the SRS-ECU. : Troubleshoot the SRS. Refer to GROUP 52B - Troubleshooting.

Set to the ETACS-ECU. : Troubleshoot the ETACS-ECU. Refer to

.

Set to the A/C-ECU. : Troubleshoot the A/C. Refer to GROUP 55 - Troubleshooting

.

The diagnosis code is not set.

: Go to Step 4.

STEP 4. M.U.T.-III actuator test

Perform the actuator test, and check that display lamps or warning lamps are illuminated normally, or multi information display is displayed normally.

Item 7: Indicator1
Item 8: Indicator2
Item 9: Indicator3
Item 10: Indicator4
Item 11: Shift indicator

Q. Is the check result normal?

Go to Step 5.

Replace the combination meter.

STEP 5. Retest the system

Check that display lamps or warning lamps are illuminated normally, or multi information display is displayed normally.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction

Replace the combination meter.