Nissan Altima 2007-2012 Service Manual: B2555 stop lamp
Description
BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Depress the brake pedal and wait for at least 1 second.
2. Check “Self Diagnostic Result” with CONSULT-III.
Is DTC detected? YES >> Refer to SEC-269, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK STOP LAMP SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect BCM harness connector.
3. Check voltage between BCM harness connector and ground.
Is the inspection result normal? YES >> Stop lamp switch is OK.
NO >> GO TO 2
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch harness connector.
2. Check voltage between stop lamp harness connector and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> Check harness for open or short between stop lamp switch and fuse.
3.CHECK STOP LAMP SWITCH CIRCUIT
1. Check continuity between stop lamp switch harness connector E38 (A) terminal 2 and BCM harness connector M18 (B) terminal 26.
2. Check continuity between stop lamp switch harness connector E38 (A) terminal 2 and ground.
Is the inspection result normal? YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK STOP LAMP SWITCH
Refer to SEC-270, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5 NO >> Replace stop lamp switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
>> Inspection End.
Component Inspection
1.CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal? YES >> Inspection End.
NO >> Replace stop lamp switch.
B2193, P1612 chain of ECM-IMMU
Description
BCM performs the ID verification with ECM that allows the engine to start.
Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM s ...
B2556 push-button ignition switch
Description
The switch that changes the power supply position. BCM maintains the power
supply position status. BCM
changes the power supply position with the operation of the push-button ignition ...
Other materials:
Both side headlamps (LO) are not
turned on
Description
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis Procedure
1.CHECK COMBINATION SWITCH
Check the combination switch. Refer to BCS-10, "System Description".
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or r ...
Camera on signal circuit (sedan)
Description
When the selector lever is placed in the R position, the rear view camera
control unit sends a camera ON signal
to the rear view camera.
Diagnosis Procedure
1.CHECK CAMERA ON SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit con ...
High-pressure pipe
Removal and Installation for High-Pressure Pipe
QR25DE
Removal
1. Discharge the refrigerant. Refer to HA-24, "HFC-134a (R-134a) Service
Procedure".
2. Remove the strut tower bar. Refer to FSU-12, "Exploded View".
3. Remove the upper cowl. Refer to EXT-18, "Remova ...