Rear View Monitor 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 (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)
REAR VIEW MONITOR SYSTEM (for Radio and Display Type) - Reverse Signal Circuit |
DESCRIPTION
The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2.- *1: for Automatic Transmission
- *2: for Manual Transmission
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK VEHICLE SIGNAL (OPERATION CHECK) |
Enter the "Function Check/Setting I" mode and select "Vehicle Signal" (HILUX_TGN26 RM0000043X902VX.html).
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.
2.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
Disconnect the G127 radio and display receiver assembly connector.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Condition
| Specified Condition
|
G127-2 (REV) - Body ground
| Ignition switch ON, shift lever in R
| 7.5 to 14 V
|
G127-2 (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)
|
ResultResult
| Proceed to
|
OK
| A
|
NG (for Automatic Transmission)
| B
|
NG (for Manual Transmission)
| C
|
3.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) |
Disconnect the G127 radio and display receiver assembly connector.
Disconnect the C57 park/neutral position switch assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
G127-2 (REV) - C57-1 (RL)
| Always
| Below 1 Ω
|
G127-2 (REV) - Body ground
| Always
| 10 kΩ or higher
|
ResultResult
| Proceed to
|
OK (for A340F)
| A
|
OK (for A343E)
| B
|
OK (for A343F)
| C
|
NG
| D
|
| |
|
| |
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY) |
Disconnect the G127 radio and display receiver assembly connector.
Disconnect the C87*1, C27*2 or C165*3 back-up light switch assembly connector.
- *1: for 2TR-FBE, 2TR-FE
- *2: for 1KD-FTV
- *3: for 1KD-FTV, i-ART
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- for 2TR-FBE, 2TR-FE:
Tester Connection
| Condition
| Specified Condition
|
G127-2 (REV) - C87-1
| Always
| Below 1 Ω
|
G127-2 (REV) - Body ground
| Always
| 10 kΩ or higher
|
- for 1KD-FTV:
Tester Connection
| Condition
| Specified Condition
|
G127-2 (REV) - C27-1
| Always
| Below 1 Ω
|
G127-2 (REV) - Body ground
| Always
| 10 kΩ or higher
|
- for 1KD-FTV, i-ART:
Tester Connection
| Condition
| Specified Condition
|
G127-2 (REV) - C165-1
| Always
| Below 1 Ω
|
G127-2 (REV) - Body ground
| Always
| 10 kΩ or higher
|
ResultResult
| Proceed to
|
OK (for R150/R151)
| A
|
OK (for R150F/R151F/R156F)
| B
|
NG
| C
|
| |
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|