Audio And Visual System (For Radio And Display Type) Reverse Signal Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE SIGNAL (OPERATION CHECK)

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY)

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH ASSEMBLY - BATTERY)

DESCRIPTION

1. *1: for Automatic Transmission
   
2. *2: for Manual Transmission
   

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).

1. Enter the "Vehicle Signal Check Mode" screen. [Refer to check Vehicle Signal in Operation Check (LandCruiser RM000005LZX005X.html).
   

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.

1. Disconnect the radio and display receiver assembly connector.
   

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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   H51-2 (REV) - Body ground	Ignition switch ON, shift lever in R	7.5 to 14 V
   H51-2 (REV) - Body ground	Ignition switch ON, shift lever not in R	Below 1 V

   Text in Illustration

   *a	Front view of wire harness connector (to Radio and Display Receiver Assembly)

   Result

   Result	Proceed to
   OK	A
   NG (for Automatic Transmission)	B
   NG (for Manual Transmission)	C

1. Disconnect the H51 radio and display receiver assembly connector.
   

2. Disconnect the C40 park/neutral position switch assembly connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   H51-2 (REV) - C40-1 (RL)	Always	Below 1 Ω
   H51-2 (REV) - Body ground	Always	10 kΩ or higher

1. Disconnect the park/neutral position switch assembly connector.
   

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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C40-2 (RB) - Body ground	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Park/neutral Position Switch Assembly)

   Result

   Result	Proceed to
   OK (for AC60F)	A
   OK (for A750F)	B
   NG	C

1. Disconnect the H51 radio and display receiver assembly connector.
   

2. Disconnect the C41 back-up light switch assembly connector.
   Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   H51-2 (REV) - C41-1	Always	Below 1 Ω
   H51-2 (REV) - Body ground	Always	10 kΩ or higher

1. Disconnect the back-up light switch assembly connector.
   

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

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   C41-2 - Body ground	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Back-up Light Switch Assembly)