NHTSA ID Number: 10118334
Manufacturer Communication Number: SSP 970563 A
TSB/Document Date: 2017-10-04
Summary
This Self-Study Program helps answer where the fuse and relay panels are located in the Audi
A4, what locations are electrical components installed on the car, which bus systems are used in the car, what the tasks are for the control modules, what are the versions of the exterior lighting and how the individual light functions are implemented in the vehicle.
Instrument Cluster Control Module J285
Equipment
• Always installed
• Optional Audi virtual cockpit (PR no.: 9S8)
Installation location
In instrument panel
Task
Display of information relevant to the driver
Address Word
17
Data bus communication
• Infotainment CAN participant
• MOST participant
• Connected by LVDS bus to Information Electronics Control Module 1 J794 (image transfer
for navigation display in instrument cluster).
Special feature
The instrument cluster in the Audi A4 is not integrated with the immobilizer.
646_020
Instrument Cluster Control Module
J285
646_086
Instrument Cluster Control Module
J285
(Audi vitual cockpit)
21
ACC adaptive cruise control
Designation
Distance Regulation Control Module J428
Equipment
Optional equipment:
• ACC with Stop&Go including traffic jam assist (PR no.: 8T8)
• ACC distance indicator (PR no.: 8T3)
Installation location
On lock carrier, front right, behind front bumper cover
Tasks
• Radar scanning of traffic (distance and speed)
• Controlling speed and distance
• Distance display and distance warnings (only if ACC is deactivated)
Address Word
13
Data bus communication
FlexRay participant
Special features
• ACC Stop&Go with integrated traffic jam assistant
• Distance display and distance warning – display of distance in instrument cluster in seconds
• Function master for Distance Regulation Control Module 2 J850
646_021
Distance Regulation Control Module
J428
Distance Regulation Control Module 2
J850
Designation
Distance Regulation Control Module 2 J850
Equipment
Optional equipment
Installation location
On lock carrier, front left, behind front bumper cover
Task
Radar scanning of traffic (distance and speed)
Address Word
8B
Data bus communication
FlexRay participant
Special feature
J850 is a slave of J428 and, based on its function, could also be referred to as a sensor.
22
Front camera
Designation
Driver Assistance Systems Front Camera R242
Equipment
Optional equipment
Installation location
On windshield above base of interior rear view mirror
Tasks
Imaging of traffic, traffic signs and lane markers for
• Audi active lane assist (lane departure warning system)
• High beam assist
• Road sign recognition
• ACC Stop&Go
• Audi pre sense
• Collision avoidance assist
Address Word
A5
Data bus communication
• FlexRay participant
• R242 is connected to the light control modules via a sub-bus system.
Special features
• Forms a functional unit in combination with image processing control module
Driver Assistance Systems Front Camera
R242
646_023
23
Automatic transmission
Designation
Transmission Control Module J217
Equipment
Installed in combination with:
• 7-speed dual clutch gearbox 0CK/0CL – S tronic (PR no.: G1C/G1D)
Installation location
Component part of DSG Transmission Mechatronic J743
Task
Controlling and monitoring the engagement and disengagement operations of the automatic
transmission
Address Word
02
Data bus communication
• FlexRay participant
• LIN master for Transmission Electric Pump 2 V553
Special feature
Immobilizer user
Transmission Control Module
J217
(7-speed dual clutch gearbox 0CK/0CL)
646_047
Reference
For further information about the automatic transmission, refer to Self-Study Program 990263, The 2017 Audi A4 Introduction.
24
Selector mechanism
Designation
Selector Lever Sensor System Control Module J587
Equipment
Installed in combination with:
• 7-speed S tronic transmission 0CK/0CL – S tronic (PR no.: G1C/G1D)
• 8-speed automaic gearbox 0D5 – tiptronic (PR no.: G1G)
Installation location
Within the selector mechanism at center console
Tasks
Operating the transmission. For example, transmitting drive positions, controlling the
mechanical selector lever locks, transmitting selector lever tiptronic commands and resetting
the selector lever in the automatic gate.
Address Word
81
Data bus communication
Infotainment CAN bus participant
Special features
• J587 can only be replaced together with the selector mechanism.
• The selector mechanism is not mechanically connected to the transmission.
Selector Lever Sensor System Control Module
J587
646_025
Reference
For further information about the selector mechanism, refer to eSelf-Study Program 990263, The 2017 Audi A4 Introduction
25
Steering column electronics
Designation
Steering Column Electronics Control Module J527
Equipment
Always installed
Installation location
On steering column
Task
Connects the steering column stalk and the electrical components in the steering wheel to the
vehicle's electrical system
Address Word
16
Data bus communication
FlexRay participant
Special feature
In conjunction with the multifunction steering wheel, it transfers the LIN signals from
J533 (master) to Multifunction Steering Wheel Control Module J453 (slave).
Steering Column Electronics Control Module
J527
646_027
Airbag
Designation
Airbag Control Module J234
Equipment
Always installed
Installation location
Under front center console storage bin
Tasks
• Deployment of airbags, seat belt pretensioners and battery interrupt igniter
• Audi pre sense
Address Word
15
Data bus communication
• FlexRay participant
• Is connected to Left and Right Front Seat Belt Tensioner Control Modules J854 and J855 via
a sub-bus system.
• LIN master for Passenger Occupant Detection System Control Module J706
Special feature
Inertial sensors for ESC (ABS Control Module J104).
Airbag Control Module
J234
646_028
26
Engine control
Designation
Equipment
Always installed
Installation location
In left hand side of engine compartment in front of air plenum chamber
Tasks
• Controlling the engine characteristic
• Activation of Start Relays J906 and J907
• Function master for start-stop system
Address Word
01
Data bus communication
• FlexRay participant
• LIN master for Radiator Shutter Motors V544 and V550.
Special features
• Immobilizer user
• Control module with new plug-in connections. Has a total of 315 pins. New test adapter
VAS 6606/23 for Test Box VAS 6606
646_030
Start-stop system
The Audi A4 is equipped with start-stop system Version 2.0,
which was first used in the 2017 Audi Q7.
For a history of the start-stop system and a detailed
description of Version 2.0, refer to 970163 The 2017 Audi
Q7 Onboard Power Supply and Networking System.
Control Unit 1 For Driving And Convenience Functions E791
646_080a
Start/Stop Mode Button
E693
27
Front climate control panel
Designation
Front A/C Display Control Head E87
Equipment
Always installed
• Automatic air conditioning (PR no.: 9AQ)
Installation location
In center of instrument panel
Tasks
Controlling:
• Temperature
• Fan speed
• Air flow distribution
Address Word
08
Data bus communication
• Hybrid CAN participant
• E87 is the LIN master for
• LIN 1: Control motors for flap activation 1 – 15
• LIN 2: Rear A/C Display Control Head E265, Fresh Air Blower Control Module J126,
Humidity Sensor In Fresh Air Intake Duct G657, Air Quality Sensor G238, High Pressure
Sensor G65
Special feature
Although the seat seating and seat ventilation switches are integrated in and monitored by
Front A/C Display Control Head E87, the Vehicle Electrical System Control Module J519 is
responsible for their activation.
Front A/C Display Control Head
E87
1)
Optional equipment
28
646_029
Head-up display
Designation
Windshield Projection Head Up Display Control Module J898
Equipment
Optional equipment (PR no.: KS1) for Prestige models
Installation location
In instrument panel directly behind the instrument cluster
Task
Controlling all optical, mechanical and electrical components of the head-up display
Address Word
82
Data bus communication
Infotainment CAN bus participant
Special features
• The control module can only be replaced complete with the other components of the
head-up display.
• To replace the head-up display, the windshield must be removed.
• The head-up display requires a special windshield (with wedge-shaped foil).
646_032
Windshield Projection Head Up Display Control Module
J898
29
Rear-view camera
Designation
Rearview Camera System Control Module J772
Equipment
Standard equipment on all models (PR no.: KA2)
Installation location
In handle (soft touch) on rear hatch
Task
Processing and transfer of images from the area behind the vehicle to the
Information Electronics Control Module 1 J794
Address Word
6C
Data bus communication
Extended CAN participant
Special feature
Control module, camera and wiring harness form a unit (as shown)
Rearview Camera System Control Module
J772
(with built-in camera)
646_033
Surround cameras
Designation
Peripheral Camera Control Module J928
Equipment
Standard equipment on Prestige model,
Installation location
In luggage compartment, L/H side, behind luggage compartment side trim
Task
The control module reads the data from the four surround-view cameras and generates
images mapping the area around the vehicle.
Address Word
6C
Data bus communication
• Extended CAN participant
• Image transfer to instrument cluster by LVDS
Peripheral Camera Control Module
J928
646_034
30
Audi side assist
Designation
Lane Change Assistance Control Module J769 (master)
Lane Change Assistance Control Module 2 J770 (slave)
Equipment
Optional equipment (PR no.: 7Y1) on Premium plus, standard on Prestige
Installation location
In rear bumper cover
Tasks
Radar monitoring system for the detection of vehicles in the area to the rear and side of the
vehicle for:
• Audi pre sense rear including Audi side assist
• Rear cross traffic assist
• Exit warning
Address Words
• 3C – J769 (master)
• CF – J770 (slave)
Data bus communication
• Extended CAN participant
• Both control modules inter-connected by a sub-bus system.
Special feature
The control module is integrated in the bumper cover. The system has to be calibrated after
removal and installation.
Lane Change Assistance Control Module
J769
Lane Change Assistance Control Module 2
J770
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TSB/Document ID: SSP 970563 A
Replacement Service Bulletin Number:
MFR Communication Date: 2015-01-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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