Nissan Murano: Dtc/circuit Diagnosis / P0107 Barometric Pressure Sensor
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms
(Trouble diagnosis content) | DTC detecting condition | Possible cause |
| P0107 |
ABSL PRES SEN/CIRC
(Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low) |
An excessively low voltage from the sensor is sent to ECM. |
Barometric pressure sensor (built-into ECM) |
DTC CONFIRMATION PROCEDURE
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE
-
Start engine and let it idle for 5 seconds.
-
Check 1st trip DTC.
Is 1st trip DTC detected?
YES>>
Proceed to Diagnosis Procedure.
NO>>
INSPECTION END
Diagnosis Procedure
DTC CONFIRMATION
-
Turn ignition switch ON.
-
Erase DTC.
-
Perform DTC confirmation procedure. Refer to DTC Description.
-
Check the DTC.
Is the DTC displayed again?
YES>>
Replace ECM. Refer to Removal and Installation.
NO>>
INSPECTION END
DTC Description
DTC DETECTION LOGIC
A high voltage from the sensor is sent to ECM under light load driving condition.
A low voltage from the sensor is sent to ECM under heavy load driving condition...
DTC Description
DTC DETECTION LOGICThe comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor, ECT sensor, FTT sensor, and EOT sensor) shows that the voltage signal of the IAT sensor is higher/lower than that of other temperature sensors when the engine is started with its cold state...
Other information:
Work Flow
OVERALL SEQUENCEDETAILED FLOWINTERVIEW CUSTOMER
Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred.
>>
GO TO 2.
REPRODUCE THE MALFUNCTION
Reproduce the malfunction on the Nissan Murano vehicle that the customer describes...
DTC Description
DTC DETECTION LOGIC
Voltage sent to ECM from the sensor is not practical, even when some time has passed after starting the engine.
Engine coolant temperature is insufficient for closed loop fuel control.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0125
ECT SENSOR
(Insufficient coolant temperature for closed loop fuel control)
1
Diagnosis condition
—
Signal (terminal)
Voltage signal transmitted from engine coolant temperature sensor to ECM
Threshold
Voltage sent to ECM from the sensor is not practical, even when some time has passed after starting the engine
Diagnosis delay time
—
2
Diagnosis condition
—
Signal (terminal)
Voltage signal transmitted from engine coolant temperature sensor to ECM
Threshold
Engine coolant temperature is insufficient for closed loop fuel control
Diagnosis delay time
—
POSSIBLE CAUSE
Harness and connectors (High resistance in the circuit)
Engine coolant temperature sensor
Thermostat
FAIL-SAFENot applicable
DTC Confirmation Procedure
CHECK DTC PRIORITY
If DTC P00125 is displayed with DTC P0116, P0117 or P0118, first perform the trouble diagnosis for DTC P0116, P0117 or P0118...