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2008 - MX-5 - Body and Accessories

NO. 2 ALL METERS AND GAUGES DO NOT OPERATE [INSTRUMENT CLUSTER]



2

All meters and gauges do not operate

POSSIBLE CAUSE

  • Instrument cluster malfunction

  • Connector or pin malfunction

  • Fuse malfunction

  • Open or short circuit in power supply (IG1) wiring harness

  • Open or short circuit in GND wiring harness


Diagnostic procedure

STEP

INSPECTION

ACTION

1

  • Turn the ignition switch to the ON position.

  • Inspect the following:

    • Does the odometer/tripmeter illuminate?

    • Does the fuel gauge operate?

    • Does the MIL turn off within approx. 3 s?

Yes

Troubleshooting completed.

No

Go to the next step.

2

  • Inspect the METER fuse.

  • Is the fuse normal?

Yes

Go to the next step.

No

Replace the fuse.

  • If the fuse is melted, inspect the wiring harness for a short to ground. Repair or replace the wiring harness, then replace the fuse.

3

  • Turn the ignition switch to LOCK position.

  • Remove the instrument cluster.

  • Disconnect the instrument cluster connector.

  • Inspect the voltage between instrument cluster wiring harness-side connector terminal 1G and terminal 1E.

  • Turn the ignition switch to the ON position.

  • Is the voltage B+?

Yes

Go to the next step.

No

Inspect the suspect wiring harness, then repair or replace.

4

  • Turn the ignition switch off.

  • Inspect the instrument cluster connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).

  • Are the terminals normal?

Yes

Replace the instrument cluster.

No

Repair or replace the terminal.




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