Nissan Murano: Dtc/circuit Diagnosis / Dlc Branch Line 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 (unit side and connector side).
-
Data link connector
-
3CH CAN gateway
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Repair the terminal and connector.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
-
Disconnect the connector of 3CH CAN gateway.
-
Check the continuity between the 3CH CAN gateway harness connector terminals.
| 3CH CAN gateway harness connector |
Continuity |
| Connector No. |
Terminal No. |
| M5 |
3 |
11 |
Existed |
| 4 |
12 |
Existed |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
Check the harness and repair the root cause (Diagnostic CAN communication circuit side).
CHECK HARNESS FOR OPEN CIRCUIT
-
Connect the connector of 3CH CAN gateway.
-
Check the resistance between the data link connector terminals.
| Data link connector |
Resistance (Ω) |
| Connector No. |
Terminal No. |
| M22 |
6 |
14 |
Approx. 54 – 66 |
Is the measurement value within the specification?
YES>>
Check CAN system type decision again.
YES>>
Error was detected in the data link connector branch line circuit.
NO>>
Repair the data link connector branch line.
Diagnosis Procedure
WARNING:
Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor...
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 (unit side and connector side)...
Other information:
Values on the Diagnosis Tool
NOTE:
The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status
AMB TEMP SEN
Ignition switch ON
—
Equivalent to ambient temperature
IN-VEH TEMP
Ignition switch ON
—
Equivalent to in-Nissan Murano vehicle temperature (front side)
INT TEMP SEN
Ignition switch ON
—
Equivalent to front evaporator fin temperature
SUNLOAD SEN
Ignition switch ON
—
Equivalent to sunload (driver side)
AMB SEN CAL
Ignition switch ON
—
Equivalent to ambient temperature
IN-VEH CAL
Ignition switch ON
—
Equivalent to in-Nissan Murano vehicle temperature (front side)
INT TEMP CAL
Ignition switch ON
—
Equivalent to front evaporator fin temperature
SUNL SEN CAL
Ignition switch ON
—
Equivalent to sunload (driver side)
COMP REQ SIG
Engine: Run at idle after warming up
A/C switch: ON
(Compressor operation status ON)
On
A/C switch: OFF
(Compressor operation status OFF)
Off
FAN REQ SIG
Engine: Run at idle after warming up
Front blower motor: ON
On
Front blower motor: OFF
Off
FAN DUTY
Engine: Run at idle after warming up
Front blower motor: ON
25 – 81
Front blower motor: OFF
0
XM
Ignition switch ON
—
Value according to target air flow temperature (driver side)
PA TARGET A/TEMP
Ignition switch ON
—
Value according to target air flow temperature (passenger side)
ENG COOL TEMP
Ignition switch ON
—
Equivalent to engine coolant temperature
Nissan Murano Vehicle SPEED
Driving
—
Equivalent to speedometer reading
PASS SUNL CAL
Ignition switch ON
—
Equivalent to sunload (passenger side)
PASS SUNL SEN CAL
Ignition switch ON
—
Equivalent to sunload (passenger side)
Reference Value
TERMINAL LAYOUTPHYSICAL VALUES
Terminal No...
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collisions...
Categories

The autolight system allows the headlights
to turn on and off automatically. The autolight
system can:
Turn on the headlights, front parking,
tail, license plate and instrument panel
lights automatically when it is dark.
Turn off all the lights (except daylight
running lights) when it is light.
Keep all the lights on for a period of time
after you place the ignition switch in the
OFF position and all doors are closed.
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