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Inspection Procedure 6: The tachometer does not work (the other meters work).
 
 
 
 
TECHNICAL DESCRIPTION (COMMENT)
If only the tachometer does not operate, the ignition signal from the engine control module may not be received or the combination meter may have a problem.
 
 
 
TROUBLESHOOTING HINTS
  • The combination meter may be defective.
  • The engine control module may be defective.
 
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
(1)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
Connect scan tool (M.U.T.-III). 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 - Troubleshooting ). Complete the CAN troubleshooting, and then go to Step 6.
 
STEP 2. Using scan tool (M.U.T.-III), read the combination meter diagnostic trouble code.
Check if DTC is set in the combination meter.
Is the DTC set?
Troubleshoot the combination meter. Refer to . Complete the combination meter troubleshooting, then go to Step 6.
Go to Step 3.
 
STEP 3. Using scan tool (M.U.T.-III), read the MFI diagnostic trouble code.
Check if DTC is set in the engine control module.
Is the DTC set?
Troubleshoot the MFI (Refer to GROUP 13A - Troubleshooting ). Complete the engine troubleshooting, and then go to Step 6.
Go to Step 4.
 
STEP 4. Using scan tool (M.U.T.-III), check actuator test.
  • Item 2: Tachometer (Refer to ).
Is the check result normal?
Go to Step 5.
Replace the combination meter, and then go to Step 6.
 
STEP 5. Check by scan tool (M.U.T.-III) "Special Function."
Using scan tool (M.U.T.-III), select "Test" from the special function of the combination meter. Execute the following item to check the pointer.
  • Item 4: Pointer (AUTO) (Refer to ).
Is the check result normal?
Go to Step 6.
Replace the combination meter, and then go to Step 6.
 
STEP 6. Retest the system.
Check that the tachometer works normally.
Is the check result normal?
The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
Go to Step 1.