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If only the tachometer does not operate, the
engine-ECU <M/T> or engine-A/T-ECU
<A/T> 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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Use the M.U.T.-III to diagnose the CAN bus
lines.
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Q.
Is the check result satisfactory?
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Repair the CAN bus lines (Refer
to GROUP 54F, Diagnosis - Can Bus Diagnostic Table ). After diagnosing the CAN bus
lines, go to Step 5.
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Check whether the MPI system-related diagnosis
code is set.
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Q.
Is the diagnosis code set?
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Diagnose MPI system. (Refer to
GROUP 13A, Troubleshooting or GROUP 13B, Troubleshooting .) After diagnosing the MPI
system, go to Step 5.
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- Item No.87: Tachometer (Refer to
.)
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Q.
Is the check result satisfactory?
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Diagnose MPI system. (Refer to
GROUP 13A, Troubleshooting or GROUP 13B, Troubleshooting .) After diagnosing the MPI
system, go to Step 5.
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- Item No.84: Tachometer: 0 r/min
- Item No.85: Tachometer: 2000 r/min
- Item No.86: Tachometer: 5000 r/min
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OK: The tachometer
operates.
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Q.
Is the check result satisfactory?
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Replace the combination meter and
then go to Step 5.
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Check that the tachometer works
normally.
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Q.
Is the check result satisfactory?
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The
procedure is complete.
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