Nissan Altima 2007-2012 Service Manual: Diagnosis sensor unit
Removal and Installation
REMOVAL
1. Diagnosis sensor unit harness connector
2. Diagnosis sensor unit shield
3. Diagnosis sensor unit
A. Diagnosis sensor unit bolts
CAUTION: • Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least three minutes.
• Before disconnecting the air bag sensor unit harness connector, be sure to disconnect the harness connector of each air bag module and pre-tensioner seat belt to prevent air bag deployment by static electricity.
• Do not use air tools or electric tools for servicing.
• Do not use old bolts after removal; replace with new bolts.
• Do not cause an impact to the diagnosis sensor unit by dropping etc. Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
• Replace the diagnosis sensor unit of deployed SRS air bag and deployed SRS front seat belt pre-tensioner.
1. Disconnect the negative and positive battery terminals, then wait at least three minutes.
2. Disconnect connector of each air bag module and seat belt pre-tensioner. Refer to SR-5, "Removal and Installation", SR-10, "Removal and Installation", SR-12, "Removal and Installation", SE-23, "Removal and Installation", SB-8, "Removal and Installation".
3. Remove the center console. Refer to IP-18, "Disassembly and Assembly".
4. Disconnect the diagnosis sensor unit harness connectors.
5. Remove the bolts, then remove the diagnosis sensor unit.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION: • Be careful not to damage the diagnosis sensor unit harness.
• After the work is completed, make sure no system malfunction is detected by air bag warning lamp.
• In case a malfunction is detected by the air bag warning lamp, reset by the self-diagnosis function and delete the memory by CONSULT−lIl.
• If a malfunction is still detected after the above operation, perform self-diagnosis to repair malfunctions.
Refer to SRC-12, "SRS Operation Check".
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the vehicle as equipped. Refer to SRC-14, "CONSULT-III Function (AIR BAG)".
Side air bag (satellite) sensor
Removal and Installation
REMOVAL
1. Side air bag (satellite) sensor harness
connector
2. Side air bag (satellite) sensor
A. Side air bag (satellite) sensor nuts
1. Side air bag (satellite) ...
Occupant classification system
control unit
Removal and Installation
The occupant classification system control unit, occupant classification
system sensor, and sensor mat are an
integral part of the front passenger seat cushion and are rep ...
Other materials:
Tachometer
System Diagram
System Description
The tachometer indicates engine speed in revolutions per minute (rpm).
The ECM provides an engine speed signal to the combination meter via CAN
communication lines.
Component Parts Location
1. Combination meter M24
2. IPDM E/R E17, E18, E201, ...
P1553 battery current sensor
Description
The power generation voltage variable control enables fuel consumption to be
decreased by reducing the
engine load which is caused by the power generation of the generator. The
battery current sensor is installed
to the battery cable at the negative terminal. The sensor measures ...
Exhaust gas (carbon monoxide)
WARNING
● Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dangerous.
It can cause unconsciousness or
death.
● If you suspect that exhaust fumes are
entering the vehicle, drive with all windows
fully open, and have the vehicl ...