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 "Shift Motor output harness Signal Inspection" procedure.
Shift Motor output harness Signal Inspection
1. Engine : Idling.
2. SHIFT MOTOR : Connect.
3. Measure Signal between terminal 6 of SHIFT MOTOR connector
4. Measure Signal between terminal 7 of SHIFT MOTOR connector
5. Change mode switch "4L-4H-2H & 2H-4H-4L".
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 Shift Motor Signal display near the specified value?
YES
1) Fault is intermittent caused by poor contact in the sensor's and/or TCCU's connector or was repaired and TCCU memory was not cleared.Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Go to "Shift Motor output harness battery short Inspection" procedure.
Shift Motor output harness battery short Inspection
1. IG "OFF"
2. SHIFT MOTOR connector : Disconnect.
3. IG "ON" & ENG "OFF".
4. Measure voltage between terminal 6 of SHIFT MOTOR harness connector C1O7 and chassis ground.
5. Measure voltage between terminal 7 of SHIFT MOTOR harness connector C1O7 and chassis ground.
A. Specification : 0V
CAUTION:
The above value is only for reference. The actual value may differ from it according to various engine condition.
6. Is resistance display near the specified value?
YES
1) Go to "Shift Motor output harness open circuit inspection" procedure.
NO
1) Check for short to battery in output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Shift Motor output harness open circuit inspection
1. IG "OFF"
2. SHIFT MOTOR connector : Disconnect.
3. Measure resistance between terminal 6 of SHIFT MOTOR harness connector
4. Measure resistance between terminal 7 of SHIFT MOTOR harness connector
A. Specification : 1 Ohm below
CAUTION:
The above value is only for reference. The actual value may differ from it according to various engine condition.
5. Is resistance display near the specified value?
YES
1) Go to "Component Inspection" procedure.
NO
1) Check for open circuit of output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.