Automatic
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 3 output harness Signal Inspection." procedure.
Position Encoder3 output harness Signal Inspection
1. Engine : Idling.
2. TCCU connector : Connect.
3. Measure Signal between terminal 11 of TCCU connector
4. Measure Signal between terminal 08 of TCCU connector
5. Change mode switch AUTO ->LOW & LOW -> AUTO 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 Encoder3 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 "Position Encoder 3 output harness short circuit to ground inspection" procedure.
Position Encoder3 output harness short circuit to ground inspection
1. Ignition OFF.
2. TRANSFER SOLENOID & MOTOR connector : Disconnect.
3. Measure resistance between terminal 3 of TRANSFER SOLENOID & MOTOR harness connector
A. Specification : Infinite
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 ?
YES
1) Go to "Position Encoder 3 output harness open circuit inspection" procedure.
NO
1) Check for short to ground circuit of Position Encoder3 output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Position Encoder3 output harness open circuit inspection
1. Ignition OFF.
2. TRANSFER SOLENOID & MOTOR connector : Disconnect.
3. Measure resistance between terminal 2 of TRANSFER SOLENOID & 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.
4. Is resistance 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 for open circuit of Position Encoder 4 output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.