[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > COMBINATION METER > SYMPTOM PROCEDURES > THE COMBINATION METER LIGHTING DOES NOT ILLUMINATE/DIM NORMALLY.
Inspection Procedure 14: The combination meter and instrument panel illumination does not illuminate normally.
 
 
cautionBefore replacing the combination meter, be sure to check that the power supply circuit, earth circuit, and communication circuit are normal.
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
The combination meter illumination will go on when the ignition switch is turned ON, and dim by operating the meter information switch or rheostat illumination switch. When the combination meter illumination does not go on or dim normally, the following conditions may be present.
The combination meter is dimmed by operating the switch.
  • Defective illumination control circuit
  • Malfunction of combination meter
After the A/C controller assembly received signal from the combination meter, it has dimmed all the switch indicators.
  • Malfunction of CAN bus line
  • Malfunction of A/C controller assembly
 
 
COMMENTS ON TROUBLE SYMPTOM
When the combination meter illumination does not go on or dim normally, the illumination control circuit, the combination meter or A/C controller assembly is defective.
 
 
PROBABLE CAUSES
  • Defective illumination control circuit
  • Malfunction of combination meter
  • Malfunction of CAN bus line
  • Malfunction of A/C controller assembly
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnostics
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. M.U.T.-IIISE diagnosis code
Check again if the diagnosis code is set in the combination meter.
Is the diagnosis code set?
Refer to .
Go to Step 3
 
STEP 3. M.U.T.-IIISE other system diagnosis code
Check if the A/C controller assembly related diagnosis code is set.
Is the diagnosis code set?
Troubleshoot the A/C. Refer to GROUP 55 - Troubleshooting .
Go to Step 4
 
STEP 4. Resistance measurement at the combination meter connector
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the combination meter connector (GND1 terminal) and the body earth.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 6
Go to Step 5
 
STEP 5. Check of short to earth circuit in GND1 line between combination meter connector and body earth.
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 ).
Repair the connector(s) or wiring harness.
 
STEP 6. Voltage measurement at the combination meter connector
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the voltage between the combination meter connector (IL+P terminal) and the body earth.
OK: System voltage
Is the check result normal?
Go to Step 9
Go to Step 7
 
STEP 7. Check of short to power supply circuit in IL+P line between the fusible link and combination meter connector.
Is the check result normal?
Go to Step 8
Repair the connector(s) or wiring harness.
 
STEP 8. Check of short to power supply circuit in ILL+ line between the combination meter connector and multi-information display switch connector.
Is the check result normal?
Go to Step 9
Repair the connector(s) or wiring harness.
 
STEP 9. M.U.T.-IIISE Special Function
Using M.U.T.-IIISE, select "Test" from the special function of the combination meter. Execute the following item to check the liquid crystal display.
  • Item 7: Illumination (AUTO)
Is the check result normal?
Go to Step 10
Replace the combination meter.
 
STEP 10. Retest the system.
Check that combination meter illumination function should work normally.
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.