Sedan With Intelligent Key

B2601 SHIFT POSITION





Description
BCM confirms the shift position with the following 2 signals.
- CVT selector lever
- P position signal from IPDM E/R (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 Sedan With Intelligent Key.
- If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to Sedan With Intelligent Key.
- If DTC B2601 is displayed with DTC B2605, first perform the trouble diagnosis for DTC B2605. Refer to Sedan With Intelligent Key.






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON under the following conditions, and wait for at least 2 seconds.
- CVT selector lever is in the P position.
- Do not depress the brake pedal.
2. Check "Self diagnostic result" with CONSULT-III.
3. Turn ignition switch ON under the following conditions, and wait for at least 2 seconds.
- CVT selector lever is in other than P position.
- Do not depress the brake pedal.
4. Check "Self diagnostic result" with CONSULT-III.
Is DTC detected?
YES - Refer to Sedan With Intelligent Key.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, refer to NVIS - With Intelligent Key System.
1.CHECK CVT SHIFT SELECTOR POWER SUPPLY
1. Turn ignition switch to ACC.
2. Disconnect CVT shift selector (park position switch) harness connector.





3. Check voltage between CVT shift selector (park position switch) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3
NO - GO TO 2
2.CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT
1. Disconnect BCM harness connector.





2. Check continuity between BCM harness connector M19 (A) terminal 84 and CVT shift selector (park position switch) harness connector M23 (B) terminal 8.





3. Check continuity between BCM harness connector M19 (A) terminal 84 and ground.





Is the inspection result normal?
YES - Replace BCM. Refer to BCM.
NO - Repair harness or connector.
3.CHECK CVT SHIFT SELECTOR CIRCUIT (BCM)
1. Disconnect BCM harness connector and IPDM E/R harness connector.





2. Check continuity between BCM harness connector M19 (A) terminal 87 and CVT shift selector (park position switch) harness connector M23 (B) terminal 9.





3. Check continuity between BCM harness connector M19 (A) terminal 87 and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair harness or connector.
4.CHECK CVT SHIFT SELECTOR CIRCUIT (IPDM E/R)
1. Disconnect BCM harness connector.





2. Check continuity between CVT shift selector (park position switch) harness connector M23 (A) terminal 9 and IPDM E/R harness connector E17 (B) terminal 43.





3. Check continuity between CVT shift selector (park position switch) harness connector M23 (A) terminal 9 and ground.





Is the inspection result normal?
YES - GO TO 5
NO - Repair harness or connector.
5.CHECK CVT SHIFT SELECTOR
Refer to Sedan With Intelligent Key.
Is the inspection result normal?
YES - GO TO 6
NO - Replace CVT shift selector. Refer to Removal And Installation (RE0F09B) or Removal And Installation (RE0F10A).
6.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
- Inspection End.




Component Inspection
1.CHECK CVT SHIFT SELECTOR (PARK POSITION SWITCH)
1. Turn ignition switch OFF.
2. Disconnect CVT shift selector (park position switch) harness connector.





3. Check continuity between CVT shift selector (park position switch) terminals as follows.





Is the inspection result normal?
YES - Inspection End.
NO - Replace CVT shift selector. Refer to Removal And Installation (RE0F09B) or Removal And Installation (RE0F10A).