UNIFIED METER AND A/C AMP. : Diagnosis Procedure
- CHECK FUSE
Check for blown fuses.
POWER SOURCE AND FUSE REFERENCEPower source Fuse No. Battery 6 Ignition switch ACC or ON 19 Ignition switch ON or START 3 Is the inspection result normal?
YES: GO TO 2.
NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK POWER SUPPLY CIRCUIT
Check voltage between unified meter and A/C amp. harness connector M67 terminals 54, 41, 53 and ground.
VOLTAGE REFERENCETerminal No. Signal name Ignition switch position Value (Approx.) 54 Battery power supply OFF Battery voltage 41 ACC power supply ACC Battery voltage 53 Ignition signal ON Battery voltage Is the inspection result normal?
YES: GO TO 3.
NO: Check harness between unified meter and A/C amp. and fuse.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect unified meter and A/C amp. connector.
- Check continuity between unified meter and A/C amp. harness connector M67 terminals 55, 71 and ground.
55, 71 - Ground : Continuity should exist.
Is the inspection result normal?
YES: INSPECTION END
NO: Repair harness or connector.