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 STEP 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 STEP 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 STEP 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.