Refer to DTC P1750.
Refer to DTC P1750.
Refer to DTC P1750.
Refer to DTC P1750.
Many malfunctions in the electrical system may be caused from poor harness and terminals. These faults can be caused by interference from other electrical systems and mechanical or chemical damage.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
▶ Go to the next procedure.
RRSS(Rear Right Speed Sensor) Signal Inspection
IG KEY ON, ENG ON
4WD ECM connector : Connect.
Monitor signal waveform between terminal 20 of 4WD ECM harness connector and chassis ground.
Start and drive vehicle in gear and maintain vehicle speed is approx. 10km/h or less(6mph or less).
Specification : refer to 'Waveform Inspection'
Is RRSS Signal display near the specified value?
▶ This may caused by intermittent fault. Verify data changibility by shaking the harness.
▶ Inspect ground to short of RRSS circuit.
▶ Inspect open or short of RRSS circuit.
▶ Check for RRSS and replace it as necessary.
▶ Check for 4WD ECM and replace it as necessary.
RRSS open inspection
IG KEY OFF, ENG OFF
4WD ECM connector and RRSS connector : Disconnect.
Measure resistance between terminal 20 of 4WD ECM harness connector and terminal 2 of RRSS harness connector.
Specification : Approx. 0Ω
Is resistance display near the specified value?
▶ Proceed next inspection procedure.
▶ Repair open circuit of RRSS circuit.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
RRSS ground circuit open inspection
IG KEY OFF, ENG OFF
4WD ECM connector and RRSS connector : Disconnect.
Measure resistance between terminal 9 of 4WD ECM harness connector and terminal 1 of RRSS harness connector.
Specification : Approx. 0Ω
Is resistance display near the specified value?
▶ Proceed next inspection procedure.
▶ Repair open circuit of RRSS circuit.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
RRSS short to ground inspection
IG KEY OFF, ENG OFF
4WD ECM connector and RRSS connector : Disconnect.
Measure resistance between terminal 20 of 4WD ECM harness connector and chassis ground.
Specification : Approx. ∞Ω
Is resistance display near the specified value?
▶ Proceed next inspection procedure.
▶ Repair ground to short circuit of RRSS circuit.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
RRSS Air Gap Inspection
IG KEY : OFF, Engine : OFF.
4WD ECM connector and RRSS connector : Disconnect.
Measure air gap between wheel speed sensor and rotor.
Specification : Front Air-gap : 0.3~0.9mm (0.0118 ~ 0.0354 inch)
Is the air gap in the range of the specified value?
▶ Replace with normal TCCU temporarily and check if vehicle run normally.
If trouble is disappeared, replace TCCU.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
▶ Adjust the air gap.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
IG KEY : OFF, Engine : OFF
4WD ECM connector and RRSS connector : Disconnect.
Measure resistance between terminal 1 & 2 of RRSS harness connector.
Specification : Approx. 1.1 ± 0.05㏀
The above value is just for reference. The data from vehicle may differ from it according as various vehicle condition. This inspection is for checking open or short of RRSS.
Is resistance display near the specified value?
▶ Proceed next inspection procedure.
▶ Replace the front left speed sensor.
▶ If problem is solved, go to the "Verification of Vehicle Repair".
IG KEY ON, ENG ON
4WD ECM connector and RRSS connector : Connect.
Clear the DTC with a scan tool.
Start and drive vehicle in gear and maintain vehicle speed is approx. 10km/h or less(6mph or less).
Check RRSS signal signal and verify the malfunction.
Does the scan tool display any DTC relevent to RRSS signal?
Go to the applicable troubleshooting procedure.
▶ System OK.
