Nissan Altima 2007-2012 Service Manual: ECU diagnosis

Door switch
Description Detects door open/close condition. Component Function Check 1.CHECK FUNCTION Check door switches DOOR SW-DR, DOOR SW-AS in Data Monitor mode with CONSULT-III. Is the inspection ...

BCM (Body control module)
Reference Value VALUES ON THE DIAGNOSIS TOOL Terminal Layout Physical Values 1: Sedan only 2: With LH front window anti-pinch 3: With LH and RH fr ...

Other materials:

P0603 ECM Power supply
Description Battery voltage is supplied to the ECM even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATI ...

DTC B2205 Vehicle speed circuit
Description The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via CAN communication lines. DTC Logic Diagnosis Procedure Symptom: Displays “VEHICLE SPEED CIRC [B2205]” as a self-diagnosis result of combination meter. 1.CHECK CO ...

Malfunction indicator lamp
Description The Malfunction Indicator Lamp (MIL) is located on the combination meter. The MIL will light up when the ignition switch is turned ON without the engine running. This is a bulb check. When the engine is started, the MIL should go off. If the MIL remains on, the on board diagno ...