1.CHECK A/T SHIFT SELECTOR POWER SUPPLY

1. Turn ignition switch OFF.
2. Disconnect A/T shift selector (detention switch) connector.
3. Check voltage between A/T shift selector (detention switch) harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   A/T shift selector (detention switch)
   Connector | Terminal
   B20 | 1 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 2.
2.CHECK A/T SHIFT SELECTOR POWER SUPPLY CIRCUIT

1. Disconnect BCM connector.
2. Check continuity between A/T shift selector (detention switch) harness connector and BCM harness connector.

   A/T shift selector (detention switch) | BCM | Continuity
   Connector | Terminal | Connector | Terminal
   B20 | 1 | M122 | 96 | Existed

3. Check continuity between A/T shift selector (detention switch) harness connector and ground.

   A/T shift selector (detention switch) | Ground | Continuity
   Connector | Terminal
   B20 | 1 | Not existed

Is the inspection result normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.
3.CHECK A/T SHIFT SELECTOR CIRCUIT (BCM)

1. Disconnect BCM connector and IPDM E/R connector.
2. Check continuity between A/T shift selector (detention switch) harness connector and BCM harness connector.

   A/T shift selector (detention switch) | BCM | Continuity
   Connector | Terminal | Connector | Terminal
   B20 | 2 | M122 | 99 | Existed

3. Check continuity between A/T shift selector (detention switch) harness connector and ground.

   A/T shift selector (detention switch) | Ground | Continuity
   Connector | Terminal
   B20 | 2 | Not existed

Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace harness.
4.CHECK A/T SHIFT SELECTOR CIRCUIT (IPDM E/R)

1. Check continuity between A/T shift selector (detention switch) harness connector and IPDM E/R harness connector.

   A/T shift selector (detention switch) | IPDM E/R | Continuity
   Connector | Terminal | Connector | Terminal
   B20 | 2 | E11 | 43 | Existed

2. Check continuity between A/T shift selector (detention switch) harness connector and ground.

   A/T shift selector (detention switch) | Ground | Continuity
   Connector | Terminal
   B20 | 2 | Not existed

Is the inspection result normal?
YES>>GO TO 5.
NO >>Repair or replace harness.
5.CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)
Refer to Component Inspection.
Is the inspection result normal?
YES>>GO TO 6.
NO>>Replace A/T shift selector. Refer to Removal and Installation.
6.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END