Nissan Juke Service and Repair Manual : On board diagnostic (OBD) system

Description

This is an onboard diagnosis system which records diagnosis information related to the exhaust gases. It detects malfunctions related to sensors and actuators. The malfunctions are indicated by means of the malfunction indicator lamp (MIL) and are stored as DTC in the ECU memory. The diagnosis information can be checked using a diagnosis tool (GST: Generic Scan Tool).

Function of OBD

The GST is connected to the diagnosis connector on the vehicle and communicates with the on-board control units to perform diagnosis. The diagnosis connector is the same as for CONSULT-III. Refer to GI-50, "Description".

    System
    CVT control system : System Diagram CVT control system : System Description INPUT/OUTPUT SIGNAL TABLE *: With Nissan Dynamic Control System SYSTEM DESCRIPTION • CVT detects the vehicle drivin ...

    Diagnosis system (TCM)
    Diagnosis description : 1 Trip Detection Diagnosis and 2 Trip Detection Diagnosis NOTE: “Start the engine and turn OFF the ignition switch after warm-up.” This is defined as 1 trip. 1 TRIP DE ...

    Other materials:

    Engine oil
    Inspection ENGINE OIL LEVEL NOTE: Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop it and allow 10 minutes before checking. 1. Pull out oil level gauge and wipe it clean. 2. Insert oil level gauge and check that the engine ...

    P0725 engine speed
    Description The engine speed signal is transmitted from ECM to TCM by CAN communication line. DTC Logic DTC DETECTION LOGI DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe speed. NOTE: If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition ...

    C1121, C1123, C1125, C1127 ABS out valve system
    DTC Logic DTC DETECTION LOGIC wait at least 10 seconds before conducting the next test. >> GO TO 2. 2.CHECK DTC DETECTION With CONSULT-III 1. Turn the ignition switch OFF to ON. 2. Perform self-diagnosis for “ABS”. Is DTC “C1121”, “C1123”, “C1125” or “C1127” detected? YES > ...