Nissan Murano: Dtc/circuit Diagnosis / P1148 Closed Loop Control
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms
(Trouble diagnosis content) |
DTC detection condition |
| P1148 |
CLOSED LOOP-B1
(Closed loop bank 1) |
Diagnosis condition |
— |
| Signal (terminal) |
— |
| Threshold |
The closed loop control function for bank 1 does not operate even when Nissan Murano vehicle is being driven in the specified condition |
| Diagnosis delay time |
— |
| P1168 |
CLOSED LOOP-B2
(Closed loop bank 2) |
Diagnosis condition |
— |
| Signal (terminal) |
— |
| Threshold |
The closed loop control function for bank 2 does not operate even when Nissan Murano vehicle is being driven in the specified condition |
| Diagnosis delay time |
— |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC Confirmation Procedure
CHECK DTC PRIORITY
If DTC P1148 or P1168 is displayed with another DTC for A/F sensor 1, perform the trouble diagnosis for the corresponding DTC.
Is applicable DTC detected?
YES>>
Perform diagnosis of applicable. Refer to DTC Index.
NO>>
INSPECTION END
DTC Description
DTC DETECTION LOGICAn excessively high or low voltage from the sensor is sent to ECM. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P1078
EXH TIM SEN/CIRC-B1
[Exhaust valve timing (EVT) control position sensor (bank 1) circuit]
Diagnosis condition
Start engine and let it idle
Signal (terminal)
Voltage signal transmitted from EVT control position sensor to ECM
Threshold
An excessively high or low voltage from the sensor is sent to ECM
Diagnosis delay time
—
P1084
EXH TIM SEN/CIRC-B2
[Exhaust valve timing (EVT) control position sensor (bank 2) circuit]
Diagnosis condition
Start engine and let it idle
Signal (terminal)
Voltage signal transmitted from EVT control position sensor to ECM
Threshold
An excessively high or low voltage from the sensor is sent to ECM
Diagnosis delay time
—
POSSIBLE CAUSEDTC P1078
Harness or connectors [EVT control position sensor (bank 1) circuit is open or shorted...
DTC Description
DESCRIPTIONThis CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse signals are exchanged between ECM and “ABS actuator and electric unit (control unit)”...
Other information:
System Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a Nissan Murano vehicle, and each control unit shares information and links with other control units during operation (not independent)...
Exploded View
Stud bolt
Connector bracket
Reamer bolt
Electric controlled coupling assembly
Wave spring
Drive pinion oil seal
Drive pinion lock nut
Pinion front bearing
Gear carrier
Collapsible spacer
Drive pinion adjusting shim
Pinion rear bearing
Drive pinion
Drive gear
Differential case
Side bearing
Side bearing adjusting shim
Side oil seal
Rear cover
Stud bolt
Gasket
Drain plug
Filler plug
Pinion mate thrust washer
Pinion mate gear
Side gear thrust washer
Side gear
Pinion mate shaft
Lock pin
Oil seal lip
Screw hole
: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)
: Always replace after every disassembly...