Diagnosis and repair workflow
Work Flow
Overall sequence
Detailed flow
1.Get information for symptom
Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred).
>> GO TO 2.
2.Confirm the symptom
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition when the symptom is detected.
>> Go to 3.
3.Detect malfunctioning part by diagnostic procedure
Inspect according to Diagnostic Procedure of the system.
Is malfunctioning part detected? YES >> GO TO 4.
NO >> GO TO 2.
4.Repair or replace the malfunctioning part
>> GO TO 5.
5.Final check
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Was the repair confirmed? Yes >> inspection end.
No >> go to 2.
U0140 Lost communication (BCM)
DTC Logic
DTC DETECTION LOGIC
DTC
CONSULT screen terms
[Trouble diagnosis content]
DTC detection condition
Possible causes
U0140
LOST COMM (BCM)
[Lost Communication With
Body Control Module]
When the ignition switch is ON, TCM is unable
to receive the CAN ...
Exterior and interior lights
* Always check with the Parts Department at a NISSAN dealer for the latest
parts information.
Map light
Interior light
Door mirror turn signal light
Headlight assembly
Fog light (if so equipped)
High-mount stop light
Trunk light
License plate light
Rear combination ligh ...
Component parts
Component parts location
Generator
IPDM E/R (view with air inlet duct removed)
ECM
Battery current sensor
Charge warning lamp indicator
Component description
Component part
Description
Generator (IC regulator)
The IC regulator controls the power generation ...