REAR VEHICLE MONITORING CONTROL MODULE INSPECTION


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Note
•  The rear vehicle monitoring control module connector cannot be connected to a tester due to the module's water-resistance processing, therefore the rear wiring harness connector is used for measuring the terminal voltage.

1.  Remove the following parts:

4SD
1.  Rear scuff plate (RH) (See REAR SCUFF PLATE REMOVAL/INSTALLATION.)
2.  Tire house trim (RH) (See TIRE HOUSE TRIM REMOVAL/INSTALLATION.)
3.  Trunk mat (See TRUNK BOARD REMOVAL/INSTALLATION.)
4.  Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION.)
5.  Trunk end trim (RH) (See TRUNK END TRIM REMOVAL/INSTALLATION.)
6.  Trunk side trim (RH) (See TRUNK SIDE TRIM REMOVAL/INSTALLATION.)
5HB
2.  Rear scuff plate (RH) (See REAR SCUFF PLATE REMOVAL/INSTALLATION.)
3.  Tire house trim (RH) (See TIRE HOUSE TRIM REMOVAL/INSTALLATION.)
4.  Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION.)
5.  Trunk side upper trim (RH) (See TRUNK SIDE UPPER TRIM REMOVAL/INSTALLATION.)
6.  Trunk side trim (RH) (See TRUNK SIDE TRIM REMOVAL/INSTALLATION.)

2.  Measure the rear vehicle monitoring control module terminal voltage using the rear wiring harness connector in the position shown in the figure.

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•  If the terminal voltage is not as indicated in the table, replace the short wiring harness connector.
―  If the system does not operate normally even though the related wiring harness and short cord are normal, replace the rear vehicle monitoring control module.


Terminal Voltage Table (Reference)

Rear vehicle monitoring control module (RH)

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Rear wiring harness connector side terminal*

Rear vehicle monitoring CM (RH) side terminal

Signal

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

A
B
C
D
E
F
Power supply
Fuse
Switch the ignition to ON
+B
•  Fuse
•  Related wiring harness
Switch the ignition to off
1.0 or less
F
F
G
H
I
J
K
D
RVM switch signal
RVM switch
Switch the ignition to ON
RVM switch pressed
1.0 or less
•  RVM switch
•  Related wiring harness
RVM switch not pressed
+B
L
M
H
Ground
Body ground
Under any condition
1.0 or less
•  Related wiring harness
N
O
P
A
CAN2_L
Rear vehicle monitoring CM (LH)
Terminal used for communication therefore determination based on terminal voltage is not possible.
C
CAN2_H
Rear vehicle monitoring CM (LH)
Terminal used for communication therefore determination based on terminal voltage is not possible.
I
CAN_L
CAN system related module
Terminal used for communication therefore determination based on terminal voltage is not possible.
L
CAN_H
CAN system related module
Terminal used for communication therefore determination based on terminal voltage is not possible.

*  :Terminal voltage measurement connector terminal

Terminal Voltage Table (Reference)

Rear vehicle monitoring control module (LH)

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Rear wiring harness connector side terminal*

Rear vehicle monitoring CM (LH) side terminal

Signal

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

A
A
B
B
C
C
D
D
E
E
Power supply
Fuse
Switch the ignition to ON
+B
•  Fuse
•  Related wiring harness
Switch the ignition to off
1.0 or less
F
F
G
C
RVM warning indicator light ground signal (RH)
RVM warning indicator light (RH)
Under any condition
1.0 or less
•  RVM warning indicator light LED (RH)
•  Related wiring harness
H
D
RVM warning indicator light signal (RH)
RVM warning indicator light (RH)
Switch the ignition to ON
LED off
1.0 or less
•  RVM warning indicator light LED (RH)
•  Related wiring harness
LED on
3.0—5.0
I
G
RVM warning indicator light ground signal (LH)
RVM warning indicator light (LH)
Under any condition
1.0 or less
•  RVM warning indicator light LED (LH)
•  Related wiring harness
J
K
RVM warning indicator light signal (LH)
RVM warning indicator light (LH)
Switch the ignition to ON
LED off
1.0 or less
•  RVM warning indicator light (LH)
•  Related wiring harness
LED on
3.0—5.0
K
L
M
H
Ground
Body ground
Under any condition
1.0 or less
•  Related wiring harness
N
O
P
L
CAN2_H
Rear vehicle monitoring CM (RH)
Terminal used for communication therefore determination based on terminal voltage is not possible.
I
CAN2_L
Rear vehicle monitoring CM (RH)
Terminal used for communication therefore determination based on terminal voltage is not possible.

*  :Terminal voltage measurement connector terminal