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Inspection Procedure 5: The combination meter light does not illuminate normally or the multi information display is not displayed normally.
 
 
cautionBefore replacing the combination meter, be sure to check that the power supply circuit, ground circuit, and communication circuit are normal.
 
 
 
 
TECHNICAL DESCRIPTION (COMMENT)
When the signal from each ECU is received via the CAN communication, the combination meter illuminates the corresponding display light or warning light, or has the multi information display to display corresponding information.
If the lights do not illuminate or the multi information display does not display normally, the wiring harness and connector(s) in the CAN bus lines, or the each ECU or the combination meter may have a problem.
 
 
TROUBLESHOOTING HINTS
  • The combination meter may be defective
  • The each ECU may be defective
 
 
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
(1)
cautionTo 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) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the CAN bus line found to be normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C, Diagnosis ).
 
STEP 2. Using scan tool MB991958, read the combination meter diagnostic trouble code.
Check again if the DTC is set in the combination meter.
Is the DTC set?
Troubleshoot the combination meter (Refer to ).
Go to Step 3.
 
STEP 3. Using scan tool MB991958, read for any diagnostic trouble code.
Check again if the DTC is set in the MFI, CVT, ASC, EPS, WCM, KOS, OSS, SRS, ETACS and A/C-ECU.
Is the DTC set in the any of the above?
<Set in the MFI.> : Troubleshoot the MFI (Refer to GROUP 13A, Diagnosis <2.0L ENGINE> or GROUP 13C, Diagnosis <2.4L ENGINE>).
<Set in the CVT.> : Troubleshoot the CVT (Refer to GROUP 23A, Diagnosis <2.0L ENGINE> or GROUP 23C, Diagnosis <2.4L ENGINE>).
<Set in the ASC.> : Troubleshoot the ASC (Refer to GROUP 35C, Diagnosis ).
<Set in the EPS.> : Troubleshoot the EPS (Refer to GROUP 37, Diagnosis ).
<Set in the WCM.> : Troubleshoot the WCM (Refer to GROUP 42C, diagnosis ).
<Set in the KOS.> : Troubleshoot the KOS (Refer to GROUP 42B, Diagnosis ).
<Set in the OSS.> : Troubleshoot the OSS (Refer to GROUP 42B, Diagnosis ).
<Set in the SRS.> : Troubleshoot the SRS (Refer to GROUP 52B, Diagnosis ).
<Set in the ETACS.> : Troubleshoot the ETACS (Refer to ).
<Set in the A/C/Heater control unit.> : Troubleshoot the A/C/Heater control unit (Refer to GROUP 55A, Manual A/C Diagnosis or GROUP 55B, Automatic A/C Diagnosis ).
Go to Step 4.
 
STEP 4. Using scan tool MB991958, check actuator test.
(1) Turn the ignition switch to the "ON" position.
(2) Conduct the actuator test of the combination meter.
  • Item 7: Indicator1
  • Item 8: Indicator2
  • Item 9: Indicator3
  • Item 10: Indicator4
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Is the check result normal?
Go to Step 5.
Replace the combination meter.
 
STEP 5. Check by scan tool MB991958 "Special Function"
Using scan tool MB991958, select "Test" from the special function of the combination meter. Execute the following item to check the liquid crystal display.
  • Item 2: LCD(AUTO)
Is the check result normal?
Go to Step 6.
Replace the combination meter.
 
STEP 6. Retest the system.
Check that display lights or warning lights are illuminated normally, or multi information display is displayed 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.