Nissan Juke Service and Repair Manual : U0140 lost communication (BCM)
Description
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independently). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Start the engine and wait for at least 5 seconds.
2. Check the DTC.
Is “U0140” detected? YES >> Go to TM-392, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
For the diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Flow Chart".
U0100 lost communication (ECM A)
Description
CAN (Controller Area Network) is a serial communication line for real-time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
U0141 lost communication (BCM A)
Description
CAN (Controller Area Network) is a serial communication line for real-time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
Other materials:
Disposal of air bag module
Driver air bag module : Deployment
CHECKING DEPLOYMENT TOOL
Connecting to Battery
CAUTION:
The battery must show voltage of 9.6 V or more.
Remove the battery from the vehicle and place it on dry wood blocks
approximately 5.0 m (16.4 ft) away from the vehicle.
• Wait 3 minutes after the vehi ...
Component parts
Automatic air conditioning system : Component Parts Location
1. BCM
• With Intelligent Key: Refer to BCS-
6, "BODY CONTROL SYSTEM :
Component Parts Location".
• Without Intelligent Key: Refer to
BCS-96, "BODY CONTROL SYSTEM
: Component Parts Location".
2. Magnet clutch ...
B terminal circuit
Description
“B” terminal circuit supplies power to charge the battery and to operate the
vehicle’s electrical system.
Diagnosis Procedure
1.CHECK “B” TERMINAL CONNECTION
1. Turn ignition switch OFF.
2. Check if “B” terminal is clean and tight.
Is the inspection result normal?
YES >> ...