Inspection Procedure 2: Power supply circuit system check
Inspection Procedure 3: Odometer and trip meter is not displayed.
Inspection Procedure 4: No needle meters work.
Inspection Procedure 5: If the ignition switch is turned to the ON position, the indicator and warning lights do not illuminate.






COMMENTS ON TROUBLE SYMPTOM


If the odometer and trip meter is not displayed or no needle meters work, power supply to the combination meter, or the combination meter itself may be defective.

PROBABLE CAUSES



  • Damaged harness wires and connectors
  • Malfunction of the combination meter

DIAGNOSIS PROCEDURE


STEP 1. Connector check: Combination meter connector B-19




Q. Is the check result normal?

Go to Step 2.

Repair the defective connector.

STEP 2. Voltage measurement at combination meter connector B-19.




(1)Disconnect the connector, and measure at the wiring harness side.
(2)Ignition switch: LOCK (OFF) position

(3)Voltage between combination meter connector B-19 terminal No.1 and body earth
OK: System voltage

Q. Is the check result normal?

Go to Step 4.

Go to Step 3.

STEP 3. Check the harness wire between the battery (fusible link No.1) and combination meter connector B-19 terminal No.1.




Check the power supply line for open circuit.




note Prior to the wiring harness inspection, check joint connector B-24 and junction block connectors B-208 and B-231, and repair if necessary.

Q. Is the wiring harness between the battery (fusible link No.1) and combination meter connector B-19 terminal No.1 in good condition?

Retest the system.

Repair the wiring harness.

STEP 4. Voltage measurement at combination meter connector B-19.




(1)Disconnect the connector, and measure at the wiring harness side.
(2)Ignition switch: ON

(3)Voltage between combination meter connector B-19 terminal No.11 and body earth
OK: System voltage

Q. Is the check result normal?

Go to Step 6.

Go to Step 5.

STEP 5. Check the harness wire between the ignition switch (IG1) and combination meter connector B-19 terminal No.11.




Check the power supply line for open circuit.


note Prior to the wiring harness inspection, check joint connector B-26 and junction block connectors B-229 and B-231, and repair if necessary.

Q. Is the wiring harness between the ignition switch (IG1) and combination meter connector B-19 terminal No.11 in good condition?

Retest the system.

Repair the wiring harness.

STEP 6. Resistance measurement at combination meter connector B-19.




(1)Disconnect the connector, and measure at the wiring harness side.

(2)Resistance between combination meter connector B-19 terminal No.12 and body earth
OK: Continuity exists (2 Ω or less)

(3)

Q. Is the check result normal?

Go to Step 8.

Go to Step 7.

STEP 7. Check the harness between combination meter connector B-19 terminal No.12 and body earth.




Check the earth wires for open circuit.
note Prior to the wiring harness inspection, check joint connector B-23, and repair if necessary.

Q. Is the wiring harness between combination meter connector terminals No.12 and body earth in good condition?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).

Repair the wiring harness.

STEP 8. Retest the system.


Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
Replace the combination meter.