Nissan Altima 2007-2012 Service Manual: Inspection and adjustment

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:

Idle air volume learning
Description Idle Air Volume Learning is a function of ECM to learn the idle air volume that keeps each engine idle speed within the specific range. It must be performed under any of the following conditions: • Each time electric throttle control actuator or ECM is replaced. • Idle spee ...

P0172, P0175 Fuel injection system function
DTC Logic DTC DETECTION LOGIC With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from A/F sensor 1. The ECM calculates the necessary compensation to correct the off ...

U1000 Can comm circuit
Description Refer to AV-240, "System Description". DTC Logic DTC DETECTION LOGIC Diagnosis Procedure Symptom: Displays “CAN COMM CIRCUIT [U1000]” as a self-diagnosis result of AV control unit. 1.CHECK CAN COMMUNICATION Select “SELF-DIAG RESULTS” mode for “MULTI AV” w ...