DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow Chart
Trouble Diagnosis Procedure
INTERVIEW WITH CUSTOMER
Interview with the customer is important to detect the root cause of CAN communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis.
Points in interview
NOTE:
INSPECTION OF VEHICLE CONDITION
Check whether the symptom is reproduced or not.
NOTE: Do not turn the ignition switch OFF or disconnect the battery cable while reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause.
CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION CHART)
Determine CAN system type based on vehicle equipment.
NOTE:
CAN System Type Specification Chart (Style A)
NOTE: CAN system type is easily checked with the vehicle equipment identification information shown in the chart.
CAN System Type Specification Chart (Style B)
NOTE: CAN system type is easily checked with the vehicle equipment identification information shown in the chart.
CREATE INTERVIEW SHEET
Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interview sheet.
Interview Sheet (Example)
DETECT THE ROOT CAUSE
CAN diagnosis function of CONSULT detects the root cause.
Principle
Remote Software Upgrade can be used to update
the entire software of the vehicle. This
makes new functions, functional enhancements
or quality improvements available.
General information
BMW recommends performing the Remote
Software Upgrade as soon as it becomes available.
Safety information
Warning ...
Operating tips
CAUTION
Do not use alcohol, benzine or thinner
to clean the camera. This will cause
discoloration. To clean the camera,
wipe with a cloth dampened with a diluted
mild cleaning agent and then wipe
with a dry cloth.
Do not damage the camera as the monitor ...
DTC/circuit diagnosis
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis
Procedure
Regarding Wiring Diagram information, refer to BCS-50, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse i ...