Diagnosis Procedure

Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter and A/C amp. side, and harness side) for looseness or bent.

Is the inspection result normal? 

YES: GO TO 2.

NO: Repair terminal or connector.

1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector terminal and unified meter and A/C amp. harness connector terminal.

   Combination meter		Unified meter and A/C amp.		Continuity
   Connector	Terminals	Connector	Terminals
   M53	2	M66	27	Existed
   	3		7

4. Check continuity between combination meter harness connector terminal and ground.

   Combination meter		Ground	Continuity
   Connector	Terminals
   M53	2		Not existed
   	3

   Is the inspection result normal? 

   YES: GO TO 3.

   NO: Repair harness or connector.

1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector terminal and ground.

   Terminal			Voltage (Approx.)
   (+)		(-)
   Unified meter and A/C amp.
   Connector	Terminal
   M66	27	Ground	5 V

   Is the inspection result normal? 

   YES: GO TO 4.

   NO: Replace unified meter and A/C amp.

1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Connect combination meter connector.
4. Turn ignition switch ON.
5. Check voltage between combination meter harness connector terminal and ground.

   Terminal			Voltage (Approx.)
   (+)		(-)
   Combination meter
   Connector	Terminal
   M53	3	Ground	5 V

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: Replace combination meter.