Nissan Murano: Dtc/circuit Diagnosis / Main Line Between Abs and Hvac Circuit
Diagnosis Procedure
CHECK CONNECTOR
-
Turn the ignition switch OFF.
-
Disconnect the battery cable from the negative terminal.
-
Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
-
Harness connector E152
-
Harness connector M31
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Repair the terminal and connector.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
-
Disconnect the following harness connectors.
-
Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.
| ABS actuator and electric unit (control unit) harness connector |
Harness connector |
Continuity |
| Connector No. |
Terminal No. |
Connector No. |
Terminal No. |
| E125 |
26 |
E152 |
12G |
Existed |
| 14 |
11G |
Existed |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Repair the main line between the ABS actuator and electric unit (control unit) and the harness connector E152.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
-
Disconnect the A/C auto amp. harness connector.
-
Check the continuity between the harness connector and the A/C auto amp. harness connector.
| Harness connector |
A/C auto amp. harness connector |
Continuity |
| Connector No. |
Terminal No. |
Connector No. |
Terminal No. |
| M31 |
12G |
M50 |
1 |
Existed |
| 11G |
21 |
Existed |
Is the inspection result normal?
YES>>
Check CAN system type decision again.
YES>>
Error was detected in the main line between the ABS actuator and electric unit (control unit) and the A/C auto amp.
NO>>
Repair the main line between the harness connector M31 and the A/C auto amp.
Diagnosis Procedure
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors...
Diagnosis Procedure
CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side)...
Other information:
Diagnosis Procedure
Door does not lock/unlock with door request switch, and engine does not start when ignition switch is pressed while carrying Intelligent Key. (One Intelligent Key has the symptom, other keys operate normally.)SYMPTOM TABLE (ONE INTELLIGENT KEY HAS THE SYMPTOM, OTHER KEYS OPERATE NORMALLY) Door lock operation (remote keyless entry) Door lock operation (request switch) or back door open operation (opener switch of back door panel) Engine started with push-button ignition switch operation (Intelligent Key is within the detection area of inside key antenna) Engine started with push-button ignition switch operation (registered Intelligent Key placed next to push-button ignition switch)
OK
NG
No crank, No start
OK
DIAGNOSIS PROCEDURERefer to Diagnosis Procedure...
DTC Description
DTC DETECTION LOGICAn EOP sensor signal voltage applied to ECM remains lower than the specified value continuously for 10 seconds or more when the engine speed is 1,000 rpm or more. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0524
ENGINE OIL PRESSURE
(Engine oil pressure too low)
Diagnosis condition
—
Signal (terminal)
Voltage signal transmitted from EOP sensor signal to ECM
Threshold
An EOP sensor signal voltage applied to ECM remains lower than the specified value continuously when the engine speed is 1,000 rpm or more
Diagnosis delay time
10 seconds or more
POSSIBLE CAUSE
Decrease in engine oil pressure
Decrease in engine oil level
Engine oil condition
EOP sensor
Cause of engine oil consumption
FAIL-SAFE Engine operating condition in fail-safe mode
Fail safe mode Nissan Murano Vehicle behavior
Engine oil pressure
ECM illuminates oil pressure warning lamp on the combination meter...