Nissan Altima (L32) 2007-2012 Service Manual: POWER supply and ground circuit
BCM
Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuse or fusible link are blown.
Is the fuse or fusible link blown? YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement normal? YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist? YES >> Inspection End.
NO >> Repair or replace harness.
Special Repair Requirement
1. REQUIRED WORK WHEN REPLACING BCM
Initialize control unit. Refer to BCS-6, "CONFIGURATION (BCM) : Special Repair Requirement".
>> Work End.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Diagnosis Procedure
1. CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown? YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connectors.
3. Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal? YES >> GO TO 3
NO >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and ground.
Does continuity exist? YES >> Inspection End.
NO >> Repair harness or connector.
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 ...
Key slot
Diagnosis Procedure
1.CHECK KEY SLOT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
Is the inspec ...
Other materials:
Drive belt
QR25DE eng
1. Crankshaft pulley
2. Drive belt Automatic tensioner
3. Water pump pulley
4. Alternator
5. Air conditioner
WARNING
Be sure the ignition switch is placed in the
OFF or LOCK position before servicing
drive belt. The engine could rotate
unexpectedly.
1. Visually inspect the be ...
Vehicle security indicator
Description
• Vehicle security indicator is built in combination meter.
• NVIS (Nissan Vehicle Immobilizer System-NATS) and vehicle security system
conditions are indicated by
blink or illumination of vehicle security indicator.
Component Function Check
1.CHECK FUNCTION
1. Perform †...
button
To change the display brightness, press
the button. Pressing the button
again will
change the display to the day or the night display.
If no operation is performed within 5 seconds, the
display will return to the previous display.
Press and hold the button for
more than
two seconds to ...
