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 POWER SUPPLY CIRCUIT

1. Disconnect set-up switch harness connector.
2. Turn ignition switch ON.
3. Check voltage between set-up switch vehicle side harness connector and ground.

   Set-up switch vehicle side harness connector | Ground | Condition | Voltage (Approx.)
   Connector | Terminal
   M73 | 18 | Ground | Ignition switch ON | Battery voltage (11 – 14 V)
   Ignition switch OFF | 0 V

Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 5.
3.CHECK HARNESS BETWEEN TCM AND SET-UP SWITCH (PART 1)

1. Turn ignition switch OFF.
2. Disconnect TCM harness connector.
3. Check continuity between TCM vehicle side harness connector terminals and set-up switch vehicle side harness connector terminals.

   TCM vehicle side harness connector | Set-up switch vehicle side harness connector | Continuity
   Connector | Terminal | Connector | Terminal
   B45 | 45 | M73 | 16 | Existed
   47 | 10

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace the malfunctioning parts.
4.CHECK HARNESS BETWEEN TCM AND SET-UP SWITCH (PART 2)
Check continuity between TCM vehicle side harness connector terminal and ground.

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B45 | 45 | Ground | Not existed
47

Is the inspection result normal?
YES>>GO TO 8.
NO >>Repair or replace damaged parts.
5.CHECK HARNESS BETWEEN SET-UP SWITCH AND IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) (PART 1)

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check continuity between set-up switch vehicle side harness connector terminal and IPDM E/R (intelligent power distribution module engine room) vehicle side harness connector terminal.

   Set-up switch vehicle side harness connector | IPDM E/R (intelligent power distribution module engine room) vehicle side harness connector | Continuity
   Connector | Terminal | Connector | Terminal
   M73 | 18 | E5 | 25 | Existed

Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace the malfunctioning parts.
6.CHECK HARNESS BETWEEN SET-UP SWITCH AND IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) (PART 2)
Check continuity between set-up switch vehicle side harness connector terminal and ground.

Set-up switch vehicle side harness connector | Ground | Continuity
Connector | Terminal
M73 | 18 | Ground | Not existed

Is the inspection result normal?
YES>>GO TO 7.
NO >>Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
Check the following. Refer to Wiring Diagram - IGNITION POWER SUPPLY -.

- 10A fuse [No.45, located in the IPDM E/R (intelligent power distribution module engine room)]
- IPDM E/R (intelligent power distribution module engine room)
- 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 8.
NO>>Repair or replace damaged parts.
8.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END