Nissan Murano: Dtc/circuit Diagnosis / U1044 Eng Comm Circuit
DTC DETECTION LOGIC
A signal voltage of LIN communication between ECM and generator is excessively low or excessively high.
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | |
| U1044 |
ENG COMM CIRCUIT (Engine communication circuit) |
Diagnosis condition | Ignition switch ON |
| Signal (terminal) | Signal voltage of LIN communication | ||
| Threshold | Signal voltage between ECM and generator is excessively low or excessively high | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
-
Harness or connectors
(LIN communication circuit is open or shorted.)
-
Generator
FAIL-SAFE
Not applicable
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
-
Turn ignition ON and wait at least 10 seconds.
-
Check DTC.
Is DTC detected?
YES>>Proceed to Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: INSPECTION END
CHECK ACTIVE GRILLE SHUTTER SIGNAL CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Disconnect active grille shutter harness connector.
-
Check the continuity between ECM harness connector and active grille shutter harness connector.
+ − Continuity ECM Active grille shutter Connector Terminal Connector Terminal F79 99 E238 3 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>INSPECTION END
NO>>Repair or replace error-detected parts.
U1040 Eng Comm Circuit
DTC Description
DTC DETECTION LOGICWhen ECM unable to transmit engine communication signal. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
U1040
Engine communication line
Diagnosis condition
Ignition switch ON
Signal (terminal)
Engine communication signal
Threshold
ECM unable to transmit engine communication signal
Diagnosis delay time
—
POSSIBLE CAUSE
Harness and connectors (Engine communication line is open or shorted...
P0011 Ivt Control
DTC Description
DTC DETECTION LOGICThere is a gap between angle of target and phase-control angle degree. DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0011
INT/V TIM CONT-B1
(“A” Camshaft Position - Timing Over-Advanced or System Performance bank 1)
Diagnosis condition
—
Signal (terminal)
Camshaft position sensor signal
Threshold
During the advanced control of intake valve timing control, the angle difference between actual angle and target angle is 13 degrees or more...
Other information:
Nissan Murano (Z52) 2015-2024 Owners Manual: Attaching the center seat belt
Always be sure the center seat belt connector tongue and connector buckle are attached. Disconnect only when folding down the rear seat. To connect the buckle: Pull out the connector tongue from the retractor base . Pull out the seat belt tongue from the retractor base ...
Nissan Murano (Z52) 2015-2024 Service Manual: Body Straightening Equipment
Comparison of Pulling Methods (1) HYDRAULIC RAM TYPEIn this method, the pressing force of a hydraulic ram is converted to a pulling force by a chain. Pulling points on the body may be added easily, and there is more freedom to select the pulling direction...
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Luggage hooks
When securing items using luggage hooks located on the back of the seat or side finisher do not apply a load over more than 6.5 lbs. (29 N) to a single hook.
The luggage hooks that are located on the floor should have loads less than 110 lbs. (490 N) to a single hook.
