RM36D0EC _52 Drivetrain _083068 GF2A TRANSFER / 4WD / AWD _0401882 DYNAMIC TORQUE VECTORING AWD SYSTEM J

GF2A TRANSFER / 4WD / AWD  DYNAMIC TORQUE VECTORING AWD SYSTEM  AWD Warning Light Remains ON  


DESCRIPTION

The 4WD ECU assembly is connected to the combination meter assembly via the CAN communication system.

If the 4WD ECU assembly stores any DTCs which are related to the dynamic torque vectoring AWD system, the warning message is displayed on the multi-information display in the combination meter assembly.

WIRING DIAGRAM

except 12.3 Inch TFT Display Type:
C415810E15
0.531,1.51 2.427,1.854 1.896,0.344 10 false Multi-information Display 0.417,2.458 2.708,2.656 2.292,0.198 10 false Combination Meter Assembly 0.854,4.25 3.219,4.51 2.365,0.26 10 false : CAN Communication System 3.896,1.99 5.083,2.26 1.188,0.271 10 false ECU-IGR NO. 1 5.635,1.604 6.104,1.948 0.469,0.344 10 false 24 5.656,2.49 5.865,2.771 0.208,0.281 10 false 1 5.958,1.823 6.417,2.021 0.458,0.198 10 false IG1 5.948,2.708 6.406,2.906 0.458,0.198 10 false GND 5.635,1.833 6.094,2.031 0.458,0.198 10 false N3 5.698,3.156 7.063,3.677 1.365,0.521 10 false 4WD ECU Assembly 5.635,2.708 6.094,2.906 0.458,0.198 10 false N3 5.635,1.156 6.104,1.396 0.469,0.24 10 false N4 5.635,0.594 6.094,0.792 0.458,0.198 10 false N4 5.938,0.594 6.5,0.802 0.563,0.208 10 false CANH 5.938,1.167 6.396,1.365 0.458,0.198 10 false CANL 5.635,0.385 6.104,0.729 0.469,0.344 10 false 17 5.635,0.948 6.104,1.292 0.469,0.344 10 false 26 0.417,2.281 0.875,2.479 0.458,0.198 10 false G18 2.125,0.594 2.698,0.844 0.573,0.25 10 false CANH 2.156,1.156 2.615,1.354 0.458,0.198 10 false CANL 2.656,0.958 3.125,1.302 0.469,0.344 10 false 25 2.677,0.417 3.146,0.76 0.469,0.344 10 false 9

for 12.3 Inch TFT Display Type:
C415810E16
0.531,1.51 2.427,1.854 1.896,0.344 10 false Multi-information Display 0.417,2.458 2.708,2.656 2.292,0.198 10 false Combination Meter Assembly 0.854,4.25 3.219,4.51 2.365,0.26 10 false : CAN Communication System 3.896,1.99 5.052,2.219 1.156,0.229 10 false ECU-IGR NO. 1 5.635,1.615 6.104,1.958 0.469,0.344 10 false 24 5.656,2.5 5.865,2.781 0.208,0.281 10 false 1 5.958,1.823 6.417,2.021 0.458,0.198 10 false IG1 5.948,2.708 6.406,2.906 0.458,0.198 10 false GND 5.635,1.833 6.094,2.031 0.458,0.198 10 false N3 5.698,3.156 7.063,3.677 1.365,0.521 10 false 4WD ECU Assembly 5.635,2.708 6.094,2.906 0.458,0.198 10 false N3 5.635,1.156 6.104,1.396 0.469,0.24 10 false N4 5.635,0.594 6.094,0.792 0.458,0.198 10 false N4 5.938,0.594 6.5,0.802 0.563,0.208 10 false CANH 5.938,1.167 6.396,1.365 0.458,0.198 10 false CANL 5.635,0.385 6.104,0.729 0.469,0.344 10 false 17 5.635,0.938 6.104,1.281 0.469,0.344 10 false 26 0.417,2.281 0.875,2.479 0.458,0.198 10 false G150 2.125,0.594 2.698,0.844 0.573,0.25 10 false CANH 2.156,1.156 2.615,1.354 0.458,0.198 10 false CANL 2.656,0.958 3.125,1.302 0.469,0.344 10 false 14 2.677,0.417 3.146,0.76 0.469,0.344 10 false 31

CAUTION / NOTICE / HINT

NOTICE:
·

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

·

When the 4WD ECU assembly is replaced, before removing the 4WD ECU assembly, it is necessary to perform ECU Data Save to save the original 4WD ECU assembly information.

Click hereDrivetrain>GF2A (TRANSFER / 4WD / AWD)>DYNAMIC TORQUE VECTORING AWD SYSTEM>CALIBRATION



HINT:

Check the condition of each related circuit connector before troubleshooting.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE


PROCEDURE

1.CHECK VEHICLE CONTROL HISTORY (DYNAMIC TORQUE VECTORING AWD SYSTEM)
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Enter the following menus: Chassis / Four Wheel Drive / Utility / Vehicle Control History (RoB).


d.

Using the GTS, check for Vehicle Control History.

Click hereDrivetrain>GF2A (TRANSFER / 4WD / AWD)>DYNAMIC TORQUE VECTORING AWD SYSTEM>VEHICLE CONTROL HISTORY

Chassis > Four Wheel Drive > Utility
Tester Display
Vehicle Control History (RoB)
50005 448 55
HINT:

If vehicle control history is stored when the dynamic torque vectoring AWD system are suspended, the warning message is displayed.



Result:
Result Proceed to
There is no vehicle control history for when the dynamic torque vectoring AWD system were suspended. A
There is vehicle control history for when the dynamic torque vectoring AWD system were suspended. B



A

2.CHECK 4WD ECU ASSEMBLY

B

PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY

Click hereDrivetrain>GF2A (TRANSFER / 4WD / AWD)>DYNAMIC TORQUE VECTORING AWD SYSTEM>VEHICLE CONTROL HISTORY

NOTICE:

After performing troubleshooting and repair regarding vehicle control history, clear the vehicle control history.



2.CHECK 4WD ECU ASSEMBLY
a.

Check if the 4WD ECU assembly connector is securely connected.

OK:

The connector is securely connected.



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)

NG

CONNECT CONNECTOR TO ECU CORRECTLY

3.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)
a.

Turn the engine switch off.


b.
C408010C03
1.552,0.073 1.906,0.323 0.354,0.25 2.521,1.531 2.833,0.833 2.833,0.833 3,0.833 true 0.198,0.198 0.51,0.396 0.313,0.198 10 false *a 3.042,0.771 3.375,1.052 0.333,0.281 10 false IG1 1.625,0.125 2.083,0.323 0.458,0.198 10 false N3
*a Front view of wire harness connector
(to 4WD ECU Assembly)


Disconnect the 4WD ECU assembly connector.


c.

Turn the engine switch on (IG).


d.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
N3-24 (IG1) - Body ground Engine switch on (IG) 11 to 14 V



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (GND TERMINAL)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (GND TERMINAL)
a.

Turn the engine switch off.


b.

Disconnect the N3 4WD ECU assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N3-1 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

5.READ VALUE USING GTS (4WD WARNING LIGHT)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.READ VALUE USING GTS (4WD WARNING LIGHT)
a.

Turn the engine switch off.


b.

Connect the GTS the DLC3.


c.

Turn the engine switch on (IG).


d.

Turn the GTS on.


e.

Enter the following menus: Chassis / Four Wheel Drive / Data List.


f.

According to the display on the GTS, read the Data List.

Chassis > Four Wheel Drive > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
4WD Warning Light AWD warning (multi-information display) OFF / ON OFF: Warning off
ON: Warning on 		-
Chassis > Four Wheel Drive > Data List
Tester Display
4WD Warning Light
50003 448 114

g.

Check the GTS display condition of the 4WD warning light.

Result:
Result Proceed to
Display of the Data List remains OFF A
Display of the Data List remains ON B




A

GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)

for SFTM Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for SFTM Made)>HOW TO PROCEED WITH TROUBLESHOOTING

for GTMC Made: Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM (for GTMC Made)>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE 4WD ECU ASSEMBLY

Click hereDrivetrain>GF2A (TRANSFER / 4WD / AWD)>4WD CONTROL ECU>REMOVAL