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:

Drive belts
Checking Drive Belts 1. Power steering pump 2. Drive belt auto-tensioner 3. Crankshaft 4. Idler pulley 5. A/C compressor pulley 6. Generator pulley 7. Idler pulley 8. Drive belt A. Indicator B. Possible use range (for new belt) C. Belt replacement WARNING: Inspect and check the drive ...

P0442 evap control system
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0442 is displayed with DTC P0456, first perform the trouble diagnosis for DTC P0456. Refer to EC-336, "DTC Logic". This diagnosis detects leaks in the EVAP purge line using engine intake manifold vacuum. If pressure does not increase ...

B2616 ignition relay circuit
Description BCM controls the various electrical components and simultaneously supplies power according to the power supply position. BCM checks the power supply position internally. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn i ...