NO. 8 TACHOMETER INDICATION IS DEFECTIVE [INSTRUMENT CLUSTER]

id0903d5808100

8

Tachometer indication is defective
POSSIBLE CAUSE
•  PCM malfunction
•  Instrument cluster malfunction
•  Connector or pin malfunction
•  Open or short circuit in wiring between instrument cluster and PCM

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Start the engine.
―  Does the tachometer needle move smoothly?
―  Does the tachometer needle indicate correct engine speed?
Yes
Troubleshooting completed.
No
Go to the next step.
2
•  Start the instrument cluster input/output check mode.
•  Inspect the tachometer using the check code 13.
•  Is the tachometer normal?
Yes
Go to the next step.
No
Replace the instrument cluster.
3
•  Turn the ignition (F2, G6)/engine (WLT-1, WLT-2, WL-C, WE-C) switch off.
•  Inspect the instrument cluster connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Are the terminals normal?
Yes
Go to the next step.
No
Repair or replace the terminal.
4
•  Turn the ignition (F2, G6)/engine (WLT-1, WLT-2, WL-C, WE-C) switch to LOCK position.
•  Remove the instrument cluster.
•  Disconnect the instrument cluster connector.
•  Inspect for continuity between instrument cluster terminal 2S and GND.
•  Is there continuity?
Yes
Repair or replace the wiring harness between the instrument cluster and GND.
No
Go to the next step.
5
•  Turn the ignition (F2, G6)/engine (WLT-1, WLT-2, WL-C, WE-C) switch to LOCK position.
•   Inspect the PCM terminal for poor connection (such as damaged/pulled-out pins, and corrosion).
•  Are the terminals normal?
Yes
Go to the next step.
No
Repair or replace the terminal.
6
•  Turn the ignition (F2, G6)/engine (WLT-1, WLT-2, WL-C, WE-C) switch to LOCK position.
•  Disconnect the PCM sensor connector (with the instrument cluster connector disconnected).
•  Inspect for continuity between instrument cluster terminal 2S and PCM terminal 218.
•  Is there continuity?
Yes
Inspect the CKP sensor and related wiring harness.
(See CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [WL-C, WE-C].)
No
Repair or replace the wiring harness between the instrument cluster and PCM.