B2601

Description

BCM confirms the shift position with the following 4 signals.
- Selector lever
- Transmission range switch
- P position signal from IPDM E/R (CAN)
- P position signal from TCM (CAN)


DTC Logic


DTC DETECTION LOGIC

NOTE:
- If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
"BCM : DTC Logic" Security System.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
"BCM : DTC Logic" Security System.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON under the following conditions and wait 2 seconds or more.
-Selector lever is in the P or N position
-Do not depress brake pedal
2.Check "Self-diagnostic result" using CONSULT.
Is DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


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.





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.





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





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" 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.





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





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK A/T SHIFT SELECTOR CIRCUIT (IPDM E/R)

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





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 (detention switch). Refer to "2WD : Removal and Installation" Removal and Installation
(2WD) or "AWD : Removal and Installation" Removal and Installation (AWD).

6. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK A/T SHIFT SELECTOR (DETENTION SWITCH)

1.Turn ignition switch OFF.
2.Disconnect A/T shift selector (detention switch) connector.
3.Check continuity between A/T shift selector (detention switch) terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace A/T shift selector (detention switch). Refer to "2WD : Removal and Installation" Removal and Installation
(2WD) or "AWD : Removal and Installation" Removal and Installation (AWD).