Nissan Murano: System Description / On Board Diagnostic (obd) System
Description
This is an on board 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. Refer to Description.
System Description
SYSTEM DIAGRAMDESCRIPTION
Controls for improvement of the transmission efficiency by engaging the torque converter clutch in the torque converter and eliminating slip of the converter...
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...
Other information:
System Description
The system switches fluid pressure of each brake caliper to increase, hold or decrease according to signals from control unit in ABS actuator and electric unit (control unit). This control system is applied to VDC function, TCS function, ABS function, EBD function, brake assist function, hill start assist function and automaticemergency braking function...
DTC Description
DTC DETECTION LOGIC
ECM back up system does not function properly.
EEPROM (built-in microcomputer) system internal ECM does not function properly.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0603
ECM BACK UP/CIRCUIT
[Internal Control Module Keep Alive Memory (KAM) Error]
Diagnosis condition
Ignition switch ON
Signal (terminal)
—
Threshold
ECM back up system does not function properly
Diagnosis delay time
—
P062F
CONTROL MODULE
(Internal control module EEPROM error)
Diagnosis condition
Start engine and let it idle
Signal (terminal)
—
Threshold
EEPROM (built-in microcomputer) system internal ECM does not function properly
Diagnosis delay time
—
POSSIBLE CAUSEDTC P0603
Harness or connectors
[ECM power supply circuit is open or shorted...