Nissan Altima 2007-2012 Service Manual: Component diagnosis

On board diagnostic (OBD) system
Diagnosis Description INTRODUCTION The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actuators. The ECM also records various emission-related d ...

Trouble diagnosis - specification value
Description The specification (SP) value indicates the tolerance of the value that is displayed in “SPEC” of “DATA MONITOR” mode of CONSULT-III during normal operation of the Engine Contr ...

Other materials:

Intake sensor
Description Intake Sensor The intake sensor is located on the heater and cooling unit. It converts temperature of air after it passes through the evaporator into a resistance value which is then input to the front air control. Diagnosis Procedure SYMPTOM: Intake sensor circuit is open or ...

Audio system (coupe)
System Diagram System Description AUDIO SYSTEM The audio system consists of the following components • Audio unit • Window antenna • Steering wheel audio control switches • Door speakers • Front tweeters • Rear speakers When the audio system is on, radio signals are receive ...

Trouble diagnosis
Condition of Error Detection “U1000” or “U1001” is indicated on SELF-DIAG RESULTS on CONSULT-III if CAN communication signal is not transmitted or received between units for 2 seconds or more. CAN COMMUNICATION SYSTEM ERROR • CAN communication line open (CAN-H, CAN-L, or both) • ...