U1000 can comm
Description
Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".
Dtc logic
Dtc detection logic
Note:
U1000 can be set if a module harness was disconnected and reconnected, perhaps during a repair. Confirm that there are actual can diagnostic symptoms and a present dtc by performing the self diagnostic result procedure.
Consult display | Dtc detection condition | Possible cause |
Can comm circuit [u1000] | When any listed module cannot communicate with can communication signal continuously for 2 seconds or more with ignition switch on | In CAN communication system, any item (or
items) of the following listed below is malfunctioning.
|
Diagnosis procedure
1. Perform self diagnostic result
Is “can comm circuit” displayed? Yes >> perform can diagnosis as described in diagnosis section of consult operation manual.
No >> refer to gi-39, "intermittent incident".
U1010 control unit (can)
Dtc logic
Dtc detection logic
Consult display | Dtc detection condition | Possible cause |
Control unit (can) [u1010] | Bcm detected internal can communication circuit malfunction. | Bcm |
Diagnosis procedure
1.Replace bcm
When dtc “u1010” is detected, replace bcm.
>> Replace bcm. Refer to bcs-126, "removal and installation".
Power supply and ground circuit
Diagnosis procedure
Regarding wiring diagram information, refer to bcs-111, "wiring diagram".
1.Check fuses and fusible link
Check that the following fuses and fusible link are not blown.
Is the fuse blown? Yes >> replace the blown fuse or fusible link after repairing the affected circuit.
No >> go to 2.
2.Check power supply circuit
Is the inspection result normal? Yes >> go to 3.
No >> repair harness or connector.
3.Check ground circuit
Check continuity between bcm connector and ground.
Is the inspection result normal? Yes >> inspection end.
No >> repair harness or connector.
Combination switch input circuit
Diagnosis procedure
Regarding wiring diagram information, refer to bcs-111, "wiring diagram".
1.Check input 1 - 5 circuit for open
Is the inspection result normal? Yes >> go to 2.
No >> repair harness or connectors.
2.Check input 1 - 5 circuit for short
Check for continuity between bcm connector and ground.
Is the inspection result normal? Yes >> repair harness or connectors.
No >> go to 3.
3.Check bcm output voltage
Is the inspection result normal? Yes >> replace combination switch.
No >> replace bcm. Refer to bcs-126, "removal and installation".
Combination switch output circuit
Diagnosis procedure
Regarding Wiring Diagram information, refer to BCS-111, "Wiring Diagram".
1.Check output 1 - 5 circuit for open
Is the inspection result normal? Yes >> go to 2.
No >> repair harness or connectors.
2.Check output 1 - 5 circuit for short
Check for continuity between bcm connector and ground.
Is the inspection result normal? Yes >> repair harness or connectors.
No >> go to 3.
3.Check bcm input signal
Is the inspection result normal? Yes >> replace bcm. Refer to bcs-126, "removal and installation".
No >> replace combination switch.
Diagnosis system (bcm)
Common item
Common item : consult function (bcm - common item)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
ECU identification
The BCM part number is displayed.
Self Diagnostic Result
...
Cooling fan control
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant
temperature, refrigerant pressure,
air conditioner ON signal. Then control system has 3-step control
[HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
Whe ...
NISSAN Vehicle Immobilizer System keys
You can only drive your vehicle using the master
keys which are registered to the NISSAN Vehicle
Immobilizer System components in your vehicle.
These keys have a transponder chip in the key
head.
The master key can be used for all the locks.
Never leave these keys in the vehicle.
Addition ...