Nissan Altima 2007-2012 Service Manual: Basic inspection

DIAGNOSIS AND REPAIR WORKFLOW

Trouble Diagnosis Flow Chart

Trouble Diagnosis Procedure

INTERVIEW WITH CUSTOMER

Interview with the customer is important to detect the root cause of CAN communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis.

Points in interview

• What: Parts name, system name

• When: Date, Frequency

• Where: Road condition, Place

• In what condition: Driving condition/environment

• Result: Symptom

NOTE: • Check normal units as well as error symptoms.

- Example: Circuit between ECM and the combination meter is judged normal if the customer indicates tachometer functions normally.

• When a CAN communication system error is present, multiple control units may malfunction or go into failsafe mode.

• Indication of the combination meter is important to detect the root cause because it is the most obvious to the customer, and it performs CAN communication with many units.

INSPECTION OF VEHICLE CONDITION

Check whether the symptom is reproduced or not.

NOTE: Do not turn the ignition switch OFF or disconnect the battery cable while the reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause.

CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION CHART) Determine CAN system type based on vehicle equipment.

NOTE: • This chart is used if CONSULT-III does not automatically recognize CAN system type.

• There are two styles for CAN system type specification charts. Depending on the number of available system types, either style A or style B may be used.

CAN System Type Specification Chart (Style A) NOTE:

CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

CAN System Type Specification Chart (Style B) NOTE: JSMIA0017GB

CAN System Type Specification Chart (Style B) NOTE:

CAN system type is easily checked with the vehicle equipment identification information shown in the chart.

CREATE INTERVIEW SHEET

Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview sheet.

Interview Sheet (Example)

DETECT THE ROOT CAUSE

CAN diagnosis function of CONSULT-III detects the root cause.

JSMIA0019GB

    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 m ...

    Other materials:

    Warning lamps/indicator lamps
    System Diagram System Description OIL PRESSURE WARNING LAMP The oil pressure warning lamp is controlled by the IPDM E/R (intelligent power distribution module engine room). Low oil pressure causes the oil pressure switch to provide a ground signal to the IPDM E/R. The IPDM E/R then sig ...

    B1086 – B1089 seat belt pre-tensioner LH
    Description DTC B1086 – B1089 SEAT BELT PRE-TENSIONER LH The seat belt pre-tensioner LH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the seat belt pre-tensioner LH. PART LOCATION Refer to SRC-7, &qu ...

    Intermittents incident
    Inspection Procedure INTERMITTENT TROUBLE An intermittent incident may have occured in the past but is not being detected currently. This DTC will not be detected on SELF DIAG [CURRENT], but may be viewed on SELF DIAG [PAST] using CONSULT-III. Trouble Diagnosis with CONSULT-III DIAGNOSTIC P ...