Nissan Altima 2007-2012 Service Manual: Self-diagnosis cannot be performed

Diagnosis Procedure

SYMPTOM: Self-diagnosis cannot be performed.

1.CHECK SELF-DIAGNOSIS FUNCTION

1. Press ignition switch ON.

2. Set in self-diagnosis mode as follows. Within 10 seconds after starting engine (ignition switch is Pressed ON.), press OFF switch for at least 5 seconds.

NOTE: • If battery voltage drops below 12 V during diagnosis STEP-3, door motor speed becomes slower and as a result, the system may generate an error even when operation is normal. To avoid this, start engine before performing this diagnosis.

• Former STEP-1 (LEDs are checked) does not exist in this self-diagnosis function.

• OFF switch may not be recognized according to the timing of pressing it. Operate OFF switch after turning the intake switch LEDs (REC) ON.

Does self-diagnosis function operate? YES >> Inspection End.

NO >> GO TO 2

2.PERFORM COMPLETE OPERATIONAL CHECK

Perform a complete operational check and check for any symptoms. Refer to HAC-5, "Description and Conditions".

Can a symptom be duplicated? YES >> Refer to HAC-83, "Symptom Matrix Chart".

NO >> GO TO 3

3.CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

Have any service bulletins been issued? YES >> Refer to appropriate bulletin.

NO >> GO TO 4

4.CHECK POWER SUPPLY AND GROUND CIRCUIT OF FRONT AIR CONTROL

Check power supply and ground circuit of front air control. Refer to HAC-61, "Diagnosis Procedure".

Is the inspection result normal? YES >> Replace front air control. Refer to VTL-8, "Removal and Installation".

NO >> Repair or replace malfunctioning part(s).

    Noise
    Component Function Check SYMPTOM: Noise INSPECTION FLOW *1 HAC-5, "Operational Check" *2 EM-16, "Checking Drive Belts" (QR25DE) or EM-121, "Checking Drive Belts" ...

    Memory function does not operate
    Diagnosis Procedure SYMPTOM: Memory function does not operate. The setting is not maintained (it returns to the initial condition). Inspection procedure 1.CHECK OPERATION 1. Set temperature co ...

    Other materials:

    P0444, P0445 Evap canister purge volume control solenoid valve
    Description The EVAP canister purge volume control solenoid valve is used to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor th ...

    B1081 – B1084 seat belt pre-tensioner RH
    Description DTC B1081 – B1084 SEAT BELT PRE-TENSIONER RH The seat belt pre-tensioner RH 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 RH. PART LOCATION Refer to SRC-7, &qu ...

    Camera control unit
    Removal and Installation - Coupe REMOVAL 1. Disconnect the negative battery terminal. 2. Remove the trunk floor carpet and spare tire cover. Refer to INT-23, "Removal and Installation". 3. Remove the LH trunk side finisher. Refer to INT-23, "Removal and Installation" ...