Nissan Altima 2007-2012 Service Manual: B261A push-button ignition switch
Description
IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hardwire input. BCM compares the 2 signals for mismatch.
DTC Logic
DTC DETECTION LOGIC
NOTE: • If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to SEC-235, "DTC Logic".
• If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to SEC-236, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.
- CVT selector lever is in the P position
- Do not depress brake pedal.
2. Check “Self diagnostic result” with CONSULT-III.
Is DTC detected? YES >> Refer to SEC-307, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Disconnect push-button ignition switch harness connector and IPDM E/R harness connector.
3. Check voltage between push-button ignition switch harness connector and ground.
Is the inspection result normal? YES >> GO TO 4
NO >> GO TO 2
2.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT
1. Disconnect BCM harness connector.
2. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and BCM harness connector M19 (B) terminal 77.
3. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK PUSH-BUTTON IGNITION SWITCH
1. Disconnect IPDM E/R harness connector.
2. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and IPDM E/R harness connector E18 (B) terminal 28.
3. Check continuity between push-button ignition switch harness connector and ground.
Is the inspection result normal? YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
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 CON ...
B26E1 No reception of engine status
signal
Description
BCM receives the engine status signal from ECM via CAN communication.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B26E1 is displayed with DTC U1000, first perform the trouble diag ...
Other materials:
P0340 CMP Sensor (phase)
Description
The camshaft position sensor (PHASE) senses the retraction of
camshaft (INT) to identify a particular cylinder. The camshaft position
sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoperative,
the camshaft position sensor (PHAS ...
On-vehicle maintenance
M/T OIL
Draining
1. Start engine and let it run to warm up transaxle oil.
2. Stop engine and remove the drain plug to drain the oil.
3. Install the drain plug with a new gasket to the transaxle case. Tighten the
drain plug to the specified
torque. Refer to TM-28, "Exploded View" ...
Air cleaner filter
Removal and Installation
1. Air duct hose
2. Air cleaner filter
3. Air cleaner case (front)
4. Front air duct
5. Air cleaner mounting bracket
6. Air cleaner case (rear)
7. Mass air flow sensor
A. To electric throttle control actuator
B. Air cleaner case side clips
CHANGING THE AIR CLEANE ...