Nissan Altima 2007-2012 Service Manual: On-vehicle repair
Precaution
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used alon ...Filament
Inspection and Repair INSPECTION 1. When measuring voltage, wrap tin foil around the top of the negative probe. Then press the foil against the wire with your finger. 2. Attach probe circuit tes ...Other materials:
P0420, P0430 Three way catalyst function
DTC Logic
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage c ...
Malfunction indicator lamp
Description
The Malfunction Indicator Lamp (MIL) is located on the combination
meter.
The MIL will light up when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should go off. If the MIL remains
on, the on board diagno ...
Warning lights
For additional information on warnings and indicators,
see “Vehicle information display” later in
this section.
Anti-lock Braking System
(ABS) warning light
When the ignition switch is placed in the ON
position, the Anti-lock Braking System (ABS)
warning light illuminates and then turns ...