Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL 
   1. Turn ignition switch ON.
   2. Check voltage between combination meter harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      Combination meter		Ground
      Connector	Terminal
      M24	32		5 V

      Is the inspection result normal? 

      YES: Inspection End.

      NO: GO TO 2.

2. CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect combination meter connector and A/C auto amp. connector.
   3. Check continuity between combination meter harness connector and A/C auto amp. harness connector.

      Combination meter		A/C auto amp.		Continuity
      Connector	Terminal	Connector	terminal
      M24	32	M34	9	Yes

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

      Combination meter		Ground	Continuity
      Connector	Terminal
      M34	31		No

      Is the inspection result normal? 

      YES: Inspection End.

      NO: Repair or replace harness or connector.