Nissan Altima 2007-2012 Service Manual: Inspection and adjustment
- Basic inspection
- Additional service when replacing control unit
- Idle speed
- Ignition timing
- Vin registration
- Accelerator pedal released position learning
- Throttle valve closed position learning
- Idle air volume learning
- Mixture ratio self-learning value clear
Engine control system QR25DE except for california
Basic inspection
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the
c ...
Basic inspection
Special Repair Requirement
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related
malfunction, or a current need for
scheduled maintenance.
2. Open engi ...
Other materials:
Key slot
Diagnosis Procedure
1.CHECK KEY SLOT POWER SUPPLY CIRCUI
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace key slot power supply circuit ...
Function diagnosis
STARTING SYSTEM
System Diagram
System Description
The starter motor plunger closes and provides a closed circuit between the
battery and the starter motor. The
starter motor is grounded to the cylinder block. With power and ground supplied,
the starter motor operates.
Component Descriptio ...
Ignition signal
Description
The ignition signal from the ECM is sent to and amplified by the power
transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the
proper high voltage in the coil
secondary circuit.
Component Function Check
1.INSPECTION ...