Reverse Signal Circuit [10/2015 - ]: Procedure

1. Enter the "Function Check/Setting I" mode and select "Vehicle Signal".

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Check that the display changes between ON and OFF according to the shift lever position.

   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 position.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2015 - ] 

Result:  3

NG 

See step  2

1. Remove the park/neutral position switch assembly.

   for U760E:

   Refer to REMOVAL [12/2012 - ]

   for U760F:

   Refer to REMOVAL [12/2012 - ]

2. Inspect the park/neutral position switch assembly.

   for U760E:

   Refer to INSPECTION [12/2012 - ]

   for U760F:

   Refer to INSPECTION [12/2012 - ]

   Result

   Result	Proceed to
   OK (for Navigation Receiver Type)	A
   OK (for Radio and Display Type)	B
   NG (for U760E)	C
   NG (for U760F)	D

Result:  4

B 

See step  4

Result:  1

C 

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  REMOVAL [12/2012 - ] 

Result:  3

D 

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  REMOVAL [12/2012 - ] 

Result:  2

A 

See step  3

1. Disconnect the B91 park/neutral position switch assembly connector.
2. Disconnect the G143 navigation receiver assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B91-2 (RL) - G143-2 (REV)	Always	Below 1 Ω
   B91-2 (RL) - Body ground	Always	10 kΩ or higher

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   B91-1 (RB) - Body ground	Ignition switch ON	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - ] 

Result:  5

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the B91 park/neutral position switch assembly connector.
2. Disconnect the G172 radio and display receiver assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B91-2 (RL) - G172-2 (REV)	Always	Below 1 Ω
   B91-2 (RL) - Body ground	Always	10 kΩ or higher

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   B91-1 (RB) - Body ground	Ignition switch ON	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - ] 

Result:  5

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR