Inspection Procedure

1. Disconnect the navigation ECU connector M16.
   Fig 1: Disconnecting Navigation ECU Connector M16

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.
   STANDARD VOLTAGE SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   REV - Body ground	Ignition switch is on (IG). Shift lever is moved to R position.	10 to 14 V
   REV - Body ground	Ignition switch is on (IG). Shift lever is moved to any position except R.	Below 1 V

OK: REPLACE NAVIGATION ECU 

NG: GO TO NEXT STEP 

1. Disconnect the navigation ECU connector M16 and park / neutral position switch connector B13.
   Fig 2: Disconnecting Navigation ECU Connector M16 And Park / Neutral Position Switch Connector B13

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   REV - B13-1	Always	Below 1
   REV - Body ground	Always	10 k or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the park / neutral position switch connector B13.
   Fig 3: Disconnecting Park / Neutral Position Switch Connector B13

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.
   STANDARD RESISTANCE SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   B13-1 - B13-2	Shift lever is moved to R position.	Below 1
   B13-1 - B13-2	Shift lever is moved to any position except R.	10 k or higher

NG: REPLACE PARK / NEUTRAL POSITION SWITCH 

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR