Nissan Altima 2007-2012 Service Manual: Signal buffer system
System Diagram
System Description
• IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via CAN communication. Refer to PCS-11, "System Description".
• IPDM E/R receives the rear window defogger status signal from BCM via CAN communication and transmits it to ECM via CAN communication. Refer to PCS-11, "System Description".
Power control system
System Diagram
System Description
COOLING FAN CONTROL
IPDM E/R controls cooling fans according to the status of the cooling fan
speed request signal received from
ECM via CAN communication. R ...
Power consumption control system
System Diagram
System Description
OUTLINE
• IPDM E/R incorporates a power consumption control function that reduces the
power consumption according
to the vehicle status.
• IPDM E/R ch ...
Other materials:
Can communication 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 of the IPDM E/R for damage, bend and loose
connection (unit side
and connector side).
Is the in ...
Power supply and ground circuit for front air control
Description
COMPONENT DESCRIPTION
FRONT AIR CONTROL
The front air control has a built-in microcomputer which processes
information sent from various sensors needed for air conditioner
operation. The air mix door motors, mode door motor, intake door
motor, blower motor and compressor are then c ...
P1564 ASCD steering switch
Description
ASCD steering switch has variant values of electrical resistance for each
button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to EC-67, "System Description" for the ASCD function.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P ...