Inspection Procedure 1: The RV Meter does not Show Any Information.









CIRCUIT OPERATION


The RV meter is energized by the battery through the ignition switch (ACC) and (IG1).

COMMENTS ON TROUBLE SYMPTOM


The ground circuit, the battery circuit or the ignition switch (ACC) circuit is suspected to be open or defective.

PROBABLE CAUSES




DIAGNOSIS PROCEDURE



STEP 1. Check the following connector: C-108 RV meter connector




Q. Is the check result normal?

Go to Step 2.

Repair the defective connector.

STEP 2. Measure the resistance at C-108 RV meter connector.




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

(2)Resistance between C-108 RV meter connector terminal No.28 and body earth
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?

Go to Step 4.

Go to Step 3.

STEP 3. Check the harness wire between C-108 RV meter connector terminal No.28 and body earth.





note Prior to the wiring harness inspection, check joint connector C-120 <R.H. drive vehicles> and repair if necessary.

  • Check the earth wires for open circuit.

Q. Is the check result normal?

Retest the system.

Repair the wiring harness.

STEP 4. Measure the voltage at C-108 RV meter connector.




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

(3)Voltage between C-108 RV meter connector terminal No.26 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 battery (fusible link No.20) and C-108 RV meter connector terminal No.26.







note Prior to the wiring harness inspection, check joint connector C-132 or junction block connector C-209 or C-213, and repair if necessary.

  • Check the battery power supply open circuit.

Q. Is the check result normal?

Retest the system.

Repair the wiring harness.

STEP 6. Measure the voltage at C-108 RV meter connector.




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

(3)Voltage between C-108 RV meter connector terminal No.25 and body earth
OK: System voltage

Q. Is the check result normal?

Go to Step 8.

Go to Step 7.

STEP 7. Check the harness wire between ignition switch (ACC) and C-108 RV meter connector terminal No.25.







note Prior to the wiring harness inspection, check joint connector C-127, junction block connector C-207 and C-208, and repair if necessary.

  • Check the IG (ACC) power supply open circuit.

Q. Is the check result normal?

Retest the system.

Repair the wiring harness.

STEP 8. Replace the RV meter temporarily and retest the system.


Check that the RV meter correctly when the RV meter is replaced temporarily.

Q. Is the check result normal?

Replace the RV meter.
Go to Step 9.

STEP 9. Retest the system.


Check that the RV meter correctly.

Q. Is the check result normal?

The procedure is complete.
Return to Step 1.