DTC Diagnosis Procedure

1. 1. Ignition switch ON.
   2. Check voltage between the following terminals of the master light switch (illumination control switch) harness connector.

      Master light switch (illumination control switch)			Condition	Voltage(Approx.)
      Connector	Terminals
      	(+)	(-)
      M313	12	11	When master light switch (illumination control switch) (-) is pressed	0 V
      			Other than the above	5 V
      	10		When master light switch (illumination control switch) (+) is pressed	0 V
      			Other than the above	5 V

Is the inspection result normal?

YES>>

Inspection End.

NO>>

GO TO 2.

1. 1. Ignition switch OFF.
   2. Disconnect combination meter harness connector and master light switch (illumination control switch) harness connector.
   3. Check continuity between combination meter harness connector and master light switch (illumination control switch) harness connector.

      Combination meter		Master light switch (illumination control switch)		Continuity
      Connector	Terminal	Connector	Terminal
      M77	51	M313	10	Yes
      	52		12

   4. Check continuity between master light switch (illumination control switch) harness connector and ground.

      Master light switch (illumination control switch)		-	Continuity
      Connector	Terminal
      M313	10	Ground	No
      	12
      	11		Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connector.