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 Encoder2 output harness Signal Inspection." procedure.
Position Encoder2 output harness Signal Inspection
1. Engine : Idling.
2. TCCU connector : Connect.
3. Measure Signal between terminal 04 of TCCU connector and chassis ground.
4. Measure Signal between terminal 08 of TCCU connector and chassis ground.
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 Encoder2 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 Encoder2 output harness short circuit to ground inspection" procedure.
Position Encoder2 output harness short circuit to ground inspection
1. Ignition OFF
2. TRANSFER SOLENOID & MOTOR connector : Disconnect.
3. Measure resistance between terminal 2 of TRANSFER SOLENOID & MOTOR harness connector and chassis ground.
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 Encoder2 output harness open circuit inspection" procedure.
NO
1) Check for short to ground circuit of Position Encoder2 output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Position Encoder2 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 and 04 of TCCU 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 Encoder2 output harness.
2) Repair as necessary and then go to "Verification of Vehicle Repair" procedure.