RM38T0EC _59 Vehicle Exterior _112294 LIGHTING (EXT) _0510962 LIGHTING SYSTEM J

LIGHTING (EXT)  LIGHTING SYSTEM  Back-up Light Circuit  


DESCRIPTION

The power distribution box assembly controls the back-up lights via the BKUP LP relay.

WIRING DIAGRAM

for HEV Model


E492364E09
0.75,2.167 2.25,2.75 1.5,0.583 10 false from Auxiliary Battery 4.052,0.729 4.406,0.896 0.354,0.167 10 false 8B 4.063,0.521 4.417,0.688 0.354,0.167 10 false 30 6.25,2.323 6.563,2.521 0.313,0.198 10 false IC 4.042,3.615 4.354,3.813 0.313,0.198 10 false 8F 4.042,3.396 4.375,3.583 0.333,0.188 10 false 38 2.844,3.469 3.156,3.667 0.313,0.198 10 false 2 2.594,3.479 2.906,3.677 0.313,0.198 10 false B 0.615,3.49 0.927,3.688 0.313,0.198 10 false E 0.417,3.49 0.729,3.688 0.313,0.198 10 false 1 1.219,3.844 2.302,4.083 1.083,0.24 10 false Back-up Light 0.583,4.208 1.813,4.417 1.229,0.208 10 false U9*1, U36*2 0.583,4.385 3.167,4.833 2.583,0.448 10 false Rear Light Assembly RH 4.417,4.74 6.698,5.167 2.281,0.427 10 false Power Distribution Box Assembly 0.583,6.583 2.823,7 2.24,0.417 10 false Rear Light Assembly LH 0.583,6.375 1.813,6.583 1.229,0.208 10 false U10*1, U37*2 0.604,5.656 0.917,5.854 0.313,0.198 10 false E 0.385,5.667 0.698,5.865 0.313,0.198 10 false 1 2.604,5.646 2.917,5.844 0.313,0.198 10 false B 2.844,5.646 3.156,5.844 0.313,0.198 10 false 2 1.219,6.01 2.302,6.25 1.083,0.24 10 false Back-up Light 1.042,1.208 1.667,1.375 0.625,0.167 10 false I278 4.979,3.875 5.875,4.219 0.896,0.344 10 false BKUP LP 1.042,1.375 3.833,1.792 2.792,0.417 10 false Hybrid Vehicle Control ECU 1.896,0.729 2.208,0.927 0.313,0.198 10 false BL 2.167,0.625 2.521,0.792 0.354,0.167 10 false 24 4.063,2.156 4.417,2.323 0.354,0.167 10 false 8J 4.083,1.938 4.417,2.125 0.333,0.188 10 false 1 2.792,2.333 3.833,2.833 1.042,0.5 10 false INP STD NO. 1 4.229,6.74 7.156,7.167 2.927,0.427 10 false *1: for TFTM Made 4.229,7.083 7.156,7.51 2.927,0.427 10 false *2: for GTMC Made


for Gasoline Model


E492364E10
0.75,2.167 2.25,2.75 1.5,0.583 10 false from Auxiliary Battery 4.052,0.729 4.406,0.896 0.354,0.167 10 false 8E 4.063,0.521 4.417,0.688 0.354,0.167 10 false 9 6.25,2.323 6.563,2.521 0.313,0.198 10 false IC 4.042,3.615 4.354,3.813 0.313,0.198 10 false 8F 4.042,3.396 4.375,3.583 0.333,0.188 10 false 38 2.844,3.469 3.156,3.667 0.313,0.198 10 false 2 2.594,3.479 2.906,3.677 0.313,0.198 10 false B 0.615,3.49 0.927,3.688 0.313,0.198 10 false E 0.417,3.49 0.729,3.688 0.313,0.198 10 false 1 1.219,3.844 2.302,4.083 1.083,0.24 10 false Back-up Light 0.583,4.208 1.813,4.417 1.229,0.208 10 false U9*1, U36*2 0.583,4.385 3.167,4.833 2.583,0.448 10 false Rear Light Assembly RH 4.417,4.74 6.698,5.167 2.281,0.427 10 false Power Distribution Box Assembly 0.583,6.583 2.823,7 2.24,0.417 10 false Rear Light Assembly LH 0.583,6.375 1.813,6.583 1.229,0.208 10 false U10*1, U37*2 0.604,5.656 0.917,5.854 0.313,0.198 10 false E 0.385,5.667 0.698,5.865 0.313,0.198 10 false 1 2.604,5.646 2.917,5.844 0.313,0.198 10 false B 2.844,5.646 3.156,5.844 0.313,0.198 10 false 2 1.219,6.01 2.302,6.25 1.083,0.24 10 false Back-up Light 1.385,1.208 2.01,1.375 0.625,0.167 10 false A182 4.979,3.875 5.875,4.219 0.896,0.344 10 false BKUP LP 1.385,1.375 4.177,1.792 2.792,0.417 10 false ECM 1.896,0.729 2.208,0.927 0.313,0.198 10 false BL 2.167,0.625 2.521,0.792 0.354,0.167 10 false 82 4.063,2.156 4.417,2.323 0.354,0.167 10 false 8J 4.083,1.938 4.417,2.125 0.333,0.188 10 false 1 2.792,2.333 3.833,2.833 1.042,0.5 10 false INP STD NO. 1 4.229,6.74 7.156,7.167 2.927,0.427 10 false *1: for TFTM Made 4.229,7.083 7.156,7.51 2.927,0.427 10 false *2: for GTMC Made


PROCEDURE

1.CHECK VEHICLE TYPE
a.

Check vehicle type.


Result:
Result Proceed to
for HEV Model A
for Gasoline Model B



A

2.READ VALUE USING GTS

B

10.READ VALUE USING GTS
2.READ VALUE USING GTS
a.

Turn the ignition switch to ON.


b.

Move the shift lever to R.


c.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

3.READ VALUE USING GTS

NG

8.CHECK REAR LIGHT ASSEMBLY LH
3.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Input Signal Back-up light input OFF or ON OFF: Shift lever in any position other than R
ON: Shift lever in R 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Input Signal
50003 475 1305
OK:

Display changes according to shift lever operation.



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (POWER SOURCE - POWER DISTRIBUTION BOX ASSEMBLY)

NG

6.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - POWER DISTRIBUTION BOX ASSEMBLY)
4.CHECK HARNESS AND CONNECTOR (POWER SOURCE - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 8J power distribution box assembly connector.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
8J-1 - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (REAR LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (REAR LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the U9*1 or U36*2 rear light assembly RH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Disconnect the U10*1 or U37*2 rear light assembly LH connector.

*1: for TFTM Made

*2: for GTMC Made



c.

Disconnect the 8F power distribution box assembly connector.


d.

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

Standard Resistance:
for TFTM Made
Tester Connection Condition Specified Condition
U9-2 (B) - 8F-38 Always Below 1 Ω
U10-2 (B) - 8F-38 Always Below 1 Ω

for GTMC Made
Tester Connection Condition Specified Condition
U36-2 (B) - 8F-38 Always Below 1 Ω
U37-2 (B) - 8F-38 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the I278 hybrid vehicle control ECU connector.


b.

Disconnect the 8B power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I278-24 (BL) - 8B-30 Always Below 1 Ω
I278-24 (BL) - Body ground Always 10 kΩ or higher
8B-30 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.CHECK HYBRID VEHICLE CONTROL ECU (OUTPUT VOLTAGE)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK HYBRID VEHICLE CONTROL ECU (OUTPUT VOLTAGE)
a.
E500928C02
0.708,1.677 1.208,1.927 0.5,0.25 1.823,1.552 2.302,0.917 true 0.875,1.708 1.188,1.906 0.313,0.198 10 false 8B 0.458,0.208 0.771,0.406 0.313,0.198 10 false *a 2.354,0.823 2.667,1.021 0.313,0.198 10 false 30
*a Component with harness connected
(Power Distribution Box Assembly)


Connect the I278 hybrid vehicle control ECU connector.


b.

Connect the 8B power distribution box assembly connector.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
8B-30 - Body ground Ignition switch ON, reverse (R) not selected Below 1 V
8B-30 - Body ground Ignition switch ON, reverse (R) selected 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPLACE HYBRID VEHICLE CONTROL ECU

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


8.CHECK REAR LIGHT ASSEMBLY LH
a.

Disconnect the U10*1 or U37*2 rear light assembly LH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Turn the ignition switch to ON.


c.

Move the shift lever to R.


d.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR LIGHT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>REMOVAL


NG

9.CHECK REAR LIGHT ASSEMBLY RH
9.CHECK REAR LIGHT ASSEMBLY RH
a.

Disconnect the U9*1 or U36*2 rear light assembly RH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Turn the ignition switch to ON.


c.

Move the shift lever to R.


d.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR LIGHT ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.READ VALUE USING GTS
a.

Turn the ignition switch to ON.


b.

Move the shift lever to R.


c.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

11.READ VALUE USING GTS

NG

16.CHECK REAR LIGHT ASSEMBLY LH
11.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Input Signal Back-up light input OFF or ON OFF: Shift lever in any position other than R
ON: Shift lever in R 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Input Signal
50003 475 1305
OK:

Display changes according to shift lever operation.



Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (POWER SOURCE - POWER DISTRIBUTION BOX ASSEMBLY)

NG

14.CHECK HARNESS AND CONNECTOR (ECM - POWER DISTRIBUTION BOX ASSEMBLY)
12.CHECK HARNESS AND CONNECTOR (POWER SOURCE - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 8J power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8J-1 - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

13.CHECK HARNESS AND CONNECTOR (REAR LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.CHECK HARNESS AND CONNECTOR (REAR LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the U9*1 or U36*2 rear light assembly RH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Disconnect the U10*1 or U37*2 rear light assembly LH connector.

*1: for TFTM Made

*2: for GTMC Made



c.

Disconnect the 8F power distribution box assembly connector.


d.

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

Standard Resistance:
for TFTM Made
Tester Connection Condition Specified Condition
U9-2 (B) - 8F-38 Always Below 1 Ω
U10-2 (B) - 8F-38 Always Below 1 Ω

for GTMC Made
Tester Connection Condition Specified Condition
U36-2 (B) - 8F-38 Always Below 1 Ω
U37-2 (B) - 8F-38 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

14.CHECK HARNESS AND CONNECTOR (ECM - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the A182 ECM connector.


b.

Disconnect the 8E power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A182-82 (BL) - 8E-9 Always Below 1 Ω
A182-82 (BL) - Body ground Always 10 kΩ or higher
8E-9 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

15.CHECK ECM (OUTPUT VOLTAGE)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.CHECK ECM (OUTPUT VOLTAGE)
a.
E500978C01
0.417,1.563 0.917,1.813 0.5,0.25 1.792,1.573 2.271,0.938 true 0.583,1.594 0.896,1.792 0.313,0.198 10 false 8E 0.219,0.146 0.531,0.344 0.313,0.198 10 false *a 2.333,0.833 2.646,1.031 0.313,0.198 10 false 9
*a Component with harness connected
(Power Distribution Box Assembly)


Connect the A182 ECM connector.


b.

Connect the 8E power distribution box assembly connector.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
8E-9 - Body ground Ignition switch ON, reverse (R) not selected Below 1 V
8E-9 - Body ground Ignition switch ON, reverse (R) selected 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPLACE ECM

Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>ECM>REMOVAL


16.CHECK REAR LIGHT ASSEMBLY LH
a.

Disconnect the U10*1 or U37*2 rear light assembly LH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Turn the ignition switch to ON.


c.

Move the shift lever to R.


d.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR LIGHT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>REMOVAL


NG

17.CHECK REAR LIGHT ASSEMBLY RH
17.CHECK REAR LIGHT ASSEMBLY RH
a.

Disconnect the U9*1 or U36*2 rear light assembly RH connector.

*1: for TFTM Made

*2: for GTMC Made



b.

Turn the ignition switch to ON.


c.

Move the shift lever to R.


d.

Read the Data List according to the display on the GTS.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
Back-up Light Fuse Shut Off Status Back-up light fuse shut off status OFF or ON OFF: Fuse has no shut off history
ON: Fuse has shut off history 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Back-up Light Fuse Shut Off Status
50003 475 1308
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE BACK-UP LIGHT RH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR