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?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to "Position Encoder output harness Signal Inspection" procedure.
Position Encoder output harness Signal Inspection
1. Engine : Idling.
2. TCCU connector : Connect.
3. Measure resistance between terminal 22, 09, 21, 23 of TCCU connector <41> and chassis ground.
4. Measure resistance between terminal 20 of TCCU connector <41> and chassis ground.
5. Change mode switch 2H -> 4H -> 4L and shift lever is positioned in N range.
A. Specification : Signal Waveform





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

6. Is Position Encoder display near the specified value?
YES
1) Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage.
2) Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Check "General position encoder" for contamination, deterioration or damage.
2) Substitute with a known-good "General position encoder" and check for proper operation. If the problem is corrected, replace "General position encoder" and then go to "Verification of Vehicle Repair" procedure.