STEP 1. Using scan tool MB991958, read the combination meter diagnostic trouble code.
Check if DTC is set in the combination meter.(1) caution | To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. |
Connect scan tool MB991958. Refer to "How to connect the Scan Tool (M.U.T.-III)
."
(2) Turn the ignition switch to the "ON" position.
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4) Check if DTC is set.
Is the DTC set?
Troubleshoot the combination meter (Refer to ). Go to Step 2.
STEP 2. Check meter information switch connector C-34 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 3. Check the meter information switch.
STEP 4. Measure at meter information switch connector C-34 in order to the ground circuit to the meter information switch.
STEP 5. Check the wiring harness between meter information switch connector C-34 (terminal 4) and grounding connector C-01 (terminal 11).
STEP 6. Check combination meter connector C-203 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
STEP 7. Check the wiring harness between meter information switch connector C-34 (terminal 1) and combination meter connector C-203 (terminal 3).
STEP 8. Retest the system.