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If only the tachometer does not operate, the engine-ECU system may not be sending ignition
signal, or the combination meter, the wiring harness or its connector may be defective.
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- Malfunction of combination meter
- Damaged harness wires and connectors
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Check whether the DIESEL system-related diagnosis code is set.
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Q.
Is the diagnosis code set?
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 Diagnose DIESEL system. (Refer to GROUP 13A, Troubleshooting  .)
After diagnosing the DIESEL system, go to Step 4.
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Q.
Is combination meter connector C-112 and engine-ECU connector C-103 in good condition?
Go to Step 3.
 Repair or replace the damage component(s).
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Q.
Is the tachometer normal?
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Intermittent Malfunction. Refer to GROUP 00 /
How to Cope with Intermittent
Malfunction ).
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Prior to the wiring harness inspection, check intermediate connector C-53 <L.H. drive
vehicles> or C-35 <R.H. drive vehicles>, and repair if necessary.
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Q.
Is the wiring harness between combination meter connector C-112 (terminal 34) and
engine-ECU connector C-103 (terminal 91) in good condition?
Replace the combination meter assembly.
Repair or replace the damage component(s).
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