Reverse Signal Circuit: Procedure

1. Enter the "Display Check" mode and select "Vehicle Signal Check Mode". Refer to OPERATION CHECK .
   Fig 1: Screen Display - Vehicle Signal Check Mode (REV)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the display changes between ON and OFF according to the shift lever operation.

   OK

   Shift Lever Position	Display
   R	ON
   Except R	OFF

   HINT: 

   This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever operation.

NG → See step   2 

OK → See step   6 

1. Measure the voltage according to the value(s) in the table below.
   Fig 2: Measuring Voltage Of Navigation Receiver Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   D55-5 (REV) - Body ground	Ignition switch ON, shift lever in R	11 to 14 V
   	Ignition switch ON, shift lever in any position except R	Below 1 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Navigation Receiver Assembly)

NG → See step   3 

OK → See step   5 

1. Disconnect the D55 navigation receiver assembly connector.
2. Disconnect the B3 park/neutral position switch assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   B3-2 (RL) - D55-5 (REV)	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   B3-2 (RL) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the B3 park/neutral position switch assembly connector.
   Fig 3: Measuring Resistance Of Park/Neutral Position Switch Assembly

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   2 (RL) - 1 (RB)	Ignition switch ACC, shift lever in R	Below 1 Ω
   	Ignition switch ACC, shift lever in any position except R	10 kΩ or higher

   HINT: 

   Replace park/neutral position switch assembly. Refer to REMOVAL .

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Park/Neutral Position Switch Assembly)

NG → See step   7 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR