Nissan Altima 2007-2012 Service Manual: A-BAG branch line circuit
Diagnosis Procedure
1.CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Check the air bag diagnosis sensor unit. Refer to SRC-3, "Work Flow".
Is the inspection result normal? YES >> Replace the main harness.
NO >> Replace parts whose air bag system has a malfunction.
ECM branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and co ...
AV branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors ...
Other materials:
Function diagnosis
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
NVH Troubleshooting - Engine Noise
Use the Chart Below to Help You Find the Cause
of the Symptom
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified ...
P0507 ISC System
Description
The ECM controls the engine idle speed to a specified level through the fine
adjustment of the air, which is let
into the intake manifold, by operating the electric throttle control actuator.
The operating of the throttle valve is
varied to allow for optimum control of the engine ...
P1574 ASCD vehicle speed sensor
Description
The ECM receives two vehicle speed signals via CAN communication line. One is
sent from combination
meter, and the other is from TCM (Transmission control module). The ECM uses
these signals for ASCD control.
Refer to EC-67, "System Description" for ASCD functions.
D ...