Nissan Altima 2007-2012 Service Manual: 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 SEC-433, "DTC Logic".
• If DTC B2601 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-434, "DTC Logic".
• If DTC B2601 is displayed with DTC B2605, first perform the trouble diagnosis for DTC B2605. Refer to SEC-477, "DTC Logic".
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 SEC-467, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK CVT DEVICE POWER SUPPLY
1. Turn ignition switch to ACC.
2. Disconnect CVT device (park position switch) harness connector.
3. Check voltage between CVT device (park position switch) harness connector and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> GO TO 2
2.CHECK CVT DEVICE POWER SUPPLY CIRCUIT
1. Disconnect BCM harness connector.
2. Check continuity between BCM harness connector M19 (A) terminal 84 and CVT device (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 BCS-96, "Removal and Installation".
NO >> Repair harness or connector.
3.CHECK CVT DEVICE 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 device (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 DEVICE CIRCUIT (IPDM E/R)
1. Disconnect BCM harness connector.
2. Check continuity between CVT device (park position switch) harness connector M23 (A) terminal 9 and IPDM E/R harness connector E17 (B) terminal 43.
3. Check continuity between CVT device (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 DEVICE
Refer to SEC-469, "Component Inspection".
Is the inspection result normal? YES >> GO TO 6
NO >> Replace CVT device. Refer to TM-431, "Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
Component Inspection
1.CHECK CVT DEVICE (PARK POSITION SWITCH)
1. Turn ignition switch OFF.
2. Disconnect CVT device (park position switch) harness connector.
3. Check continuity between CVT device (park position switch) terminals as follows.
Is the inspection result normal? YES >> Inspection End.
NO >> Replace CVT device. Refer to TM-431, "Removal and Installation".
B2560 starter control relay
Description
Starter control relay, integrated in IPDM E/R, permits the starter relay
operation when in N or P position and
the steering is locked or unlocked. It is installed in parallel with the ...
B2602 shift position
Description
BCM confirms the shift position with the following 2 signals.
• CVT selector lever
• Speed signal from meter
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2602 is displaye ...
Other materials:
B2619 BCM
Description
BCM requests IPDM E/R to supply power to steering lock unit. After receiving
the power, the steering lock unit
transmits an ON signal to BCM.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch ...
P0043, P0044 HO2S3 heater
Description
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 3 heater
corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC C ...
P2138 APP Sensor
Description
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelerator
position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which tr ...