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 and unified meter and A/C amp. harness connector.

   Combination meter		Unified meter and A/C amp.		Continuity
   Connector	Terminal	Connector	Terminal
   M53	24	M66	14	Existed
   	25		34	Existed

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

   Combination meter		Ground	Continuity
   Connector	Terminal
   M53	24		Not existed
   	25		Not existed

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 and ground.

   Terminals			Voltage (Approx.)
   (+)		(-)
   Unified meter A/C amp.
   Connector	Terminal	Ground
   M66	14		12 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 and ground.

   Terminal			Voltage (Approx.)
   (+)		(-)
   Combination meter
   Connector	Terminal	Ground
   M53	25		5 V

Is the inspection result normal?

YES 

INSPECTION END

NO 

Replace combination meter.