Inspection Procedure 9: The multi information display screen cannot be changed with the operation of the meter information switch.
| 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
PROBABLE CAUSES
- Malfunction of meter information switch
- Malfunction of combination meter
- Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Q.
Is the diagnosis code set?
STEP 2. Connector check: C-34 meter information switch connector
Q.
Is the check result normal?
STEP 3. Meter information switch check
Q.
Is the check result normal?
STEP 4. Resistance measurement at the C-34 meter information switch connector
| (1)Disconnect the meter information switch connector, and then measure at the wiring harness side. |
| (2)Measure the resistance from C-34 meter information switch connector terminal No. 4 to body earth. OK: Continuity exists (2 Ω or less) |
Q.
Is the check result normal?
STEP 5. Check the wiring harness between the C-34 meter information switch connector terminal No. 4 and the C-01 earth joint connector terminal No. 11.
| note | Before the wiring harness check, check the joint connector C-108, and repair them if necessary. |
Q.
Is the check result normal?
STEP 6. Connector check: C-203 combination meter connector
Q.
Is the check result normal?
STEP 7. Check the wiring harness between the C-203 combination meter connector terminal No. 3 and the C-34 meter information switch terminal No. 1.
Q.
Is the check result normal?
STEP 8. Retest the system
Q.
Is the check result normal?