B2604 PNP SWITCH

Description
BCM confirms the shift position with the following 4 signals.

• CVT selector lever
• P/N position switch
• P position signal from IPDM E/R (CAN)
• P position signal from TCM (CAN)

DTC Logic

DTC DETECTION LOGIC

NOTE:

• If DTC B2604 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to See: U Code Charts\U1000\Security System\Sedan Without Intelligent Key.
• If DTC B2604 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to See: U Code Charts\U1010\Security System\Sedan Without Intelligent Key.

1. Start the engine under the following conditions and wait for at least 1 second.

• CVT selector lever is in the P position
• Do not depress the brake pedal

2. Use CVT selector lever to select each gear one at a time. Wait at each gear for at least 1 second.
3. Check "Self diagnostic result" with CONSULT-III. Is DTC detected?

YES >> Refer to Diagnosis Procedure.
NO >> Inspection End.

Diagnosis Procedure
1.CHECK DTC WITH TCM
Check "Self diagnostic result" with CONSULT-III. Refer to See: Testing and Inspection.
Is the Inspection result normal?
YES >> GO TO 2
NO >> Repair or replace malfunctioning parts.
2.CHECK PNP SWITCH CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect TCM harness connector and BCM harness connector.

3. Check continuity between TCM harness connector and BCM harness connector.

4. Check continuity between TCM harness connector and ground.