Diagnosis Procedure

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

1. CHECK DISK EJECT SIGNAL CIRCUIT CONTINUITY 
   1. Turn ignition switch OFF.
   2. Disconnect AV control unit connector M164 and A/C and AV switch assembly connector.
   3. Check continuity between AV control unit connector M164 terminal 97 and A/C and AV switch assembly connector M98 terminal 14.

      AV control unit		A/C and AV switch assembly		Continuity
      Connector	Terminal	Connector	Terminal
      M164	97	M98	14	Yes

   4. Check continuity between AV control unit connector M164 terminal 978 and ground.

      AV control unit		Ground	Continuity
      Connector	Terminal
      M164	97		No

      Is inspection result normal? 

      YES: GO TO 2.

      NO: Repair or replace harness or connectors.

2. CHECK AV CONTROL UNIT VOLTAGE 
   1. Connect AV control unit connector M164 and A/C and AV switch assembly connector.
   2. Turn ignition switch ON.
   3. Check voltage between AV control unit connector M164 terminal 97 and ground.

      AV control unit		Ground	Condition	Voltage (Approx.)
      (+)		(-)
      Connector	Terminal
      M164	97	-	Pressing eject switch	0 V
      			Except above	5.0 V

      Is the inspection result normal? 

      YES: Replace A/C and AV switch assembly. Refer to "REMOVAL AND INSTALLATION - A/C AND AV SWITCH ASSEMBLY ".

      NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION - AV CONTROL UNIT ".