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Honda Ridgeline. Manual - part 261

０３

０１

０２

−

YES

15-26

Rear Differential

DTC Troubleshooting (cont’d)

VTM-4 CONTROL UNIT CONNECTOR A (22P)

NEP (BLU)

VTM-4 CONTROL UNIT CONNECTOR A (22P)

NEP (BLU)

JUMPER WIRE

PCM CONNECTOR A (44P)

NEP (BLU)

15. Check for continuity between the No. 12 terminal of

the VTM-4 control unit connector A (22P) and body
ground.

Repair short to ground in the wire between

the VTM-4 control unit (A12), and the PCM (A28).

Go to step 16.

16. Connect the No. 12 terminal of the VTM-4 control

unit connector A (22P) to body ground with a
jumper wire.

17. Check for continuity between the No. 28 terminal of

the PCM connector A (44P) and body ground.

Go to step 18.

Repair open in the wire between the VTM-4

control unit (A12), and the PCM (A28).

18. Check for poor connections or loose terminals at

the VTM-4 control unit, and the PCM connectors. If
the connections are OK, replace the VTM-4 control
unit, then go to step 19.

19. Test-drive the vehicle, and watch the VTM-4

indicator.

Replace the PCM (see page 11-205).

The system is OK at this time.

Wire side of female terminals

Is ther e continuity?

Is DT Cs 37 -1 and/ or 38-1 indicated?

０１

ＳＪＣ８Ａ００Ｋ８０２０００８１４１１ＦＡＡＴ０１

−

DTC 41-1, 41-2:

YES

15-27

VTM-4 CONTROL UNIT CONNECTOR A (22P)

CANH (WHT)

PCM CONNECTOR A (44P)

CANH (WHT)

CANH (WHT) CANH (WHT)

VSA MODULATOR-CONTROL UNIT 46P CONNECTOR

CAN Communication (PCM/

VSA System)

NOTE: Before you troubleshoot, review the general
troubleshooting information (see page 15-4).

1. Turn the ignition switch ON (II).

2. Clear the DTC (see page 15-8).

3. Test-drive the vehicle, and check for DTCs with the

HDS.

Go to step 4.

Intermittent failure, the system is OK at this

time.

4. Check for a PCM/VSA system DTCs.

Troubleshoot the indicated PCM/VSA

DTCs.

Go to step 6.

5. Disconnect the VTM-4 control unit connector A

(44P), and VSA modulator-control unit 46P
connector.

6. Turn the ignition switch OFF.

7. Jump the SCS line with the HDS.

8. Disconnect the PCM connector A (44P).

9. Check for continuity between the VTM-4 control

unit connector A (22P) terminal No. 11 and PCM
connector A (44P) terminal No. 44, and between the
VTM-4 control unit connector A (22P) terminal
No. 11 and VSA modulator-control unit 46P
connector terminal No. 33.

Go to step 10.

Repair open in the wire between the VTM-4

control unit (A11) and the PCM (A44), the VSA
modulator-control unit.

(cont’d)

Wire side of female terminals

Is DT Cs 41-1 and/ or 41-2 indicated?

Is ther e a DT Cs?

Is ther e continuity?

０２

−

YES

15-28

Rear Differential

DTC Troubleshooting (cont’d)

VTM-4 CONTROL UNIT CONNECTOR A (22P)

PCM CONNECTOR A (44P)

CANL (RED)

VSA MODULATOR-CONTROL UNIT 46P CONNECTOR

10. Check for continuity between the VTM-4 control

unit connector A (22P) terminal No. 22 and PCM
connector A (44P) terminal No. 9, and between the
VTM-4 control unit connector A (22P) terminal
No. 22 and VSA modulator-control unit 46P
connector terminal No. 12.

Check for poor connections or loose

terminals at the VTM-4 control unit, PCM, VSA
modulator-control unit connectors. If the
connections are OK, replace the VTM-4 control unit
(see page 15-50).

Repair open in the wire between the VTM-4

control unit (A22) and the PCM (A9), the VSA
modulator-control unit.

Wire side of female terminals

Is ther e continuity?

０１

０２

０３

ＳＪＣ８Ａ００Ｋ８０２０００８１４２１ＦＡＡＴ０１

−

DTC 42-1, 42-2, 43-1:

YES

15-29

DIFFERENTIAL OIL TEMPERATURE
SENSOR 2P CONNECTOR

VTM-4 CONTROL UNIT CONNECTOR A (22P)

TOH (WHT)

TOL (BLK)

VTM-4 CONTROL UNIT CONNECTOR A (22P)

TOH (WHT)

TOL (BLK)

Differential Oil

Temperature Sensor

NOTE: Before you troubleshoot, review the general
troubleshooting information (see page 15-4).

1. Turn the ignition switch ON (II).

2. Clear the DTC (see page 15-8).

3. Test-drive the vehicle, and check for DTCs with in

the HDS.

Go to step 4.

Intermittent failure, the system is OK at this

time.

4. Turn the ignition switch OFF.

5. Remove the wire harness cover from the rear

differential (see page 15-49).

6. Disconnect the 2P connector from the differential

oil temperature sensor, then measure resistance
between the No. 1 and No. 2 terminals of the
differential oil temperature sensor.

Oil temperature

Resistance

32 °F (0 °C)

5.82 k to 7.26 k

86 °F (30 °C)

1.53 k to 1.83 k

212 °F (100 °C)

148 to 162

284 °F (140 °C)

52 to 61

Go to step 7.

Replace the differential oil temperature

sensor (see page 15-49).

7. Disconnect VTM-4 control unit connector A (22P).

8. Turn the ignition switch ON (II).

9. Measure voltage between the No. 13 and No. 15

terminals of the VTM-4 control unit connector A
(22P) and body ground.

Repair short to power in the wire between

the VTM-4 control unit (A13 or A15) and the
differential oil temperature sensor.

Go to step 10.

10. Turn the ignition switch OFF.

11. Check for continuity between the No. 13 and No. 15

terminals of the VTM-4 control unit connector A
(22P) and body ground.

Repair short to ground in the wire between

the VTM-4 control unit (A13 or A15) and the
differential oil temperature sensor.

Go to step 12.

(cont’d)

Terminal side of male terminals

Wire side of female terminals

Is DT Cs 42-1, 42-2, and/ or 43-1 indicated?

Is the r esistance cor r ect?

Is ther e voltage?

Is ther e continuity?

Content .. 259 260 261 262 ..