Nissan Juke Service and Repair Manual : On board diagnostic (OBD) system
Diagnosis Description
This system is an on board diagnostic system that records exhaust emission-related diagnostic information and detects a sensors/actuator-related malfunction. A malfunction is indicated by the malfunction indicator lamp (MIL) and stored in ECU memory as a DTC. The diagnostic information can be obtained with the diagnostic tool (GST: Generic Scan Tool).
GST (Generic Scan Tool)
When GST is connected with a data link connector equipped on the vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various kinds of diagnostic tests. Refer to EC-490, "Diagnosis Description".
NOTE
:
Service $0A is not applied for regions where it is not mandated.
System
Engine control system : System Diagram
Engine control system : System Description
ECM performs various controls such as fuel injection control and ignition
timing control.
MULTIPORT FUEL INJE ...
Diagnosis system (ECM)
Diagnosis description : 1st Trip Detection Logic and Two Trip Detection
Logic
When a malfunction is detected for the first time, 1st trip DTC and 1st trip
Freeze Frame data are stored in the
ECM ...
Other materials:
Steering does not lock
Description
Steering does not lock when door is open while ignition switch is OFF.
NOTE:
Before performing the diagnosis, check “Work Flow”. Refer to SEC-47, "Work
Flow".
Diagnosis Procedure
1.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-87, "Component Function Check ...
Both side headlamps (LO) are not turned on
Description
Both side headlamps (LO) are not turned ON in any condition.
Diagnosis Procedure
1.CHECK COMBINATION SWITCH
Check the combination switch. Refer to BCS-92, "Symptom Table".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfun ...
P0139 HO2S2
DTC Logic
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen
storage capacity of the three way catalyst 1 causes the longer
switching time. To judge the malfunctions of heated oxygen sensor
2, ...