1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.
2. Check ground connection B31. Refer to “Ground Inspection” in Circuit Inspection.

Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace damaged parts.
2.CHECK HARNESS BETWEEN TCM AND GROUND

1. Disconnect TCM harness connectors.
2. Check continuity between TCM vehicle side harness connector terminal and ground.

   TCM vehicle side harness connector | Ground | Continuity
   Connector | Terminal
   B45 | 3 | Ground | Existed
   4
   7
   8

Is the inspection result normal?
YES>>GO TO 3.
NO >>Repair or replace damaged parts.
3.CHECK TCM INPUT SIGNAL CIRCUIT (PART 1)
Check voltage between TCM vehicle side harness connector terminals.

TCM vehicle side harness connector | Condition | Voltage (Approx.)
Connector | Terminal
B45 | 9 | 4 | Always | Battery voltage (11 – 14 V)

Is the inspection result normal?
YES>>GO TO 7.
NO>>GO TO 4.
4.CHECK HARNESS BETWEEN TCM AND FUSE BLOCK (J/B) (PART 1)

1. Disconnect fuse block (J/B) harness connector.
2. Check continuity between TCM vehicle side harness connector terminal and fuse block (J/B) vehicle side harness connector terminal.

   TCM vehicle side harness connector | Fuse block (J/B) vehicle side harness connector | Continuity
   Connector | Terminal | Connector | Terminal
   B45 | 9 | M1 | 4A | Existed

Is the inspection result normal?
YES>>GO TO 5.
NO >>Repair or replace damaged parts.
5.CHECK HARNESS BETWEEN TCM AND FUSE BLOCK (J/B) (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B45 | 9 | Ground | Not existed

Is the inspection result normal?
YES>>GO TO 6.
NO >>Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM (PART 1)
Check the following. Refer to Wiring Diagram - BATTERY POWER SUPPLY -.

- 10A fuse [No. 9, located in the fuse block (J/B)]
- Fuse block (J/B)
- Harness for open or short between battery and fuse block

Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair or replace damaged parts.
7.CHECK TCM INPUT SIGNAL CIRCUIT (PART 2)
Check voltage between TCM vehicle side harness connector terminals.

TCM vehicle side harness connector | Condition | Voltage (Approx.)
Connector | Terminal
B45 | 17 | 4 | Ignition switch ON | Battery voltage (11 – 14 V)
Ignition switch OFF | 0 V

Is the inspection result normal?
YES>>GO TO 11.
NO>>GO TO 8.
8.CHECK HARNESS BETWEEN TCM AND IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) (PART 1)

1. Disconnect IPDM E/R harness connector.
2. Check continuity between TCM vehicle side harness connector terminal and IPDM E/R (intelligent power distribution module engine room) vehicle side harness connector terminal.

   TCM vehicle side harness connector | IPDM E/R (intelligent power distribution module engine room) vehicle side harness connector | Continuity
   Connector | Terminal | Connector | Terminal
   B45 | 17 | E7 | 58 | Existed

Is the inspection result normal?
YES>>GO TO 9.
NO >>Repair or replace damaged parts.
9.CHECK HARNESS BETWEEN TCM AND IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B45 | 17 | Ground | Not existed

Is the inspection result normal?
YES>>GO TO 10.
NO >>Repair or replace damaged parts.
10.DETECT MALFUNCTIONING ITEM (PART 2)
Check the following. Refer to Wiring Diagram - IGNITION POWER SUPPLY -

- 10A fuse [No. 43, located in the IPDM E/R (intelligent power distribution module engine room)]
- IPDM E/R
- Harness for open or short between push-button ignition switch and IPDM E/R (intelligent power distribution module engine room)
- Push-button ignition switch

Is the inspection result normal?
YES>>GO TO 11.
NO>>Repair or replace damaged parts.
11.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END