W/Harness Inspection

4WD Control
P1718 Steering Wheel Angle Sensor 2-Input Signal - Inspection/Repair:_:W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
3. Has a problem been found?






Steering angle sensor #2 Signal Inspection

1. IG key"ON", ENGINE "ON"
2. Connect 4WD ECM and Steering angle sensor connector.
3. Monitor signal waveform between signal 2 of 4WD ECM harness connector and chassis ground.
4. Turn steering Wheel to the right or left.

Specification :Signal Waveform & Data





CAUTION:
The above value is only for reference.
The actual value may differ from it according to various engine condition.

5. Is Steering angle sensor #2 Signal display near the specified value?






Steering angle sensor Reference voltage inspection

1. IG key "ON", ENGINE "OFF".
2. Disconnect Steering angle sensor connector
3. Measure voltage between Referance 5V of Steering angle sensor harness connector and chassis ground.

Specification :Approx. 5V





CAUTION:
The above value is only for reference.
The actual value may differ from it according to various engine condition.

4. Is voltage display near the specified value?






Steering angle sensor ground harness open circuit inspection

1. IG key "OFF", ENGINE "OFF".
2. Connect 4WD ECM and Steering angle sensor connector
3. Measure resistance between Ground of 4WD ECM harness connector and chassis ground.

Specification :1Ohms below.





CAUTION:
The above value is only for reference.
The actual value may differ from it according to various engine condition.

4. Is resistance display near the specified value?






Steering angle sensor #2, short to signal line ground Inspection

1. IG key "OFF" , ENGINE "OFF".
2. Disconnect 4WD ECM and Steering angle sensor connector
3. Measure resistance between signal 2 of 4WD ECM harness connector and chassis ground.

Specification :∝ Ohms





CAUTION:
The above value is only for reference.
The actual value may differ from it according to various engine condition.

4. Is resistance display near the specified value?






Steering angle sensor #2, signal line open inspection

1. IG key "OFF" , ENGINE "OFF".
2. Disconnect 4WD ECM and Steering angle sensor connector
3. Measure resistance between signal 1 of Steering angle sensor harness connector and 4WD ECM harness connector.

Specification :1Ohms below.





CAUTION:
The above value is only for reference.
The actual value may differ from it according to various engine condition.

4. Is resistance display near the specified value?