1.INSPECTION START Check the case in which DTC is detected.

- Case1: It is detected after ignition switch is changed from OFF to ON
- Case2: It is detected after ignition switch is changed from ON to OFF and door switch is pressed

In which case is DTC detected?
Case1>>GO TO 2.
Case2>>GO TO 6.
2.CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector and IPDM E/R connector.
3. Check voltage between steering lock unit harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   Steering lock unit
   Connector | Terminal
   M40 | 8 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 3.
3.CHECK STEERING LOCK UNIT CIRCUIT-1

1. Disconnect BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.

   Steering lock unit | BCM | Continuity
   Connector | Terminal | Connector | Terminal
   M40 | 8 | M122 | 98 | Existed

3. Check continuity between steering lock unit harness connector and ground.

   Steering lock unit | Ground | Continuity
   Connector | Terminal
   M40 | 8 | Not existed

Is the inspection result normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.
4.CHECK IPDM E/R OUTPUT SIGNAL

1. Connect IPDM E/R connector.
2. Disconnect BCM connector.
3. Check voltage between steering lock unit harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   Steering lock unit
   Connector | Terminal
   M40 | 8 | Ground | Battery voltage

Is the inspection result normal?
YES>>Replace steering lock unit.
NO>>GO TO 5.
5.CHECK STEERING LOCK UNIT CIRCUIT-2

1. Disconnect IPDM E/R connector.
2. Check continuity between steering lock unit harness connector and IPDM E/R harness connector.

   Steering lock unit | IPDM E/R | Continuity
   Connector | Terminal | Connector | Terminal
   M40 | 8 | E5 | 33 | Existed

3. Check continuity between steering lock unit harness connector and ground.

   Steering lock unit | Ground | Continuity
   Connector | Terminal
   M40 | 8 | Not existed

Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation
NO>>Repair or replace harness.
6.CHECK BCM OUTPUT SIGNAL

1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector and IPDM E/R connector.
3. Check voltage between steering lock unit harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   Steering lock unit
   Connector | Terminal
   M40 | 3 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 8.
NO>>GO TO 7.
7.CHECK STEERING LOCK UNIT CIRCUIT-3

1. Disconnect BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.

   Steering lock unit | BCM | Continuity
   Connector | Terminal | Connector | Terminal
   M40 | 3 | M122 | 97 | Existed

3. Check continuity between steering lock unit harness connector and ground.

   Steering lock unit | Ground | Continuity
   Connector | Terminal
   M40 | 3 | Not existed

Is the inspection result normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.
8.CHECK IPDM E/R OUTPUT SIGNAL

1. Connect IPDM E/R connector.
2. Disconnect BCM connector.
3. Check voltage between steering lock unit harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   Steering lock unit
   Connector | Terminal
   M40 | 3 | Ground | Battery voltage

Is the inspection result normal?
YES>>Replace steering lock unit.
NO>>GO TO 9.
9.CHECK STEERING LOCK UNIT CIRCUIT-4

1. Disconnect IPDM E/R connector.
2. Check continuity between steering lock unit harness connector and IPDM E/R harness connector.

   Steering lock unit | IPDM E/R | Continuity
   Connector | Terminal | Connector | Terminal
   M40 | 3 | E5 | 32 | Existed

3. Check continuity between steering lock unit harness connector and ground.

   Steering lock unit | Ground | Continuity
   Connector | Terminal
   M40 | 3 | Not existed

Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>Repair or replace harness.