diagram AUDI A4 2000 B5 / 1.G Interior Monitor Workshop Manual
Page 5 of 44
01-110
      
Ultrasonic interior monitoring On Board 
Diagnostic (OBD), initiating
 
     
Requirements 
     
Fuse OK according to wiring diagram 
     VAG1551 Scan Tool (ST) connected   page 01
-1 
     
Anti-theft system not armed 
     
Notes:  
     If the display remains blank, check VAG1551 
voltage supply according to wiring diagram. 
     The scan tool HELP button can provide 
additional operating instructions. 
     The   button is used to advance through the 
program sequence. 
     
If an incorrect entry is made, press the -C- 
button to escape. 
Pa
ge 5 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 10 of 44
01-115
 Diagnostic Trouble Code (DTC) table, interior monitoring
 
Notes:  
 
The following table lists all the DTCs that can be recognized by the control module for interior monitoring and printed out 
by the VAG1551 Scan Tool (ST). The DTCs are listed in order according to their 5-digit numbers. 
 DTC 5-digit numbers appear only on the print-out from the scan tool.
 Before replacing a component shown as malfunctioning, check wiring and connections to the component as well as the 
Ground (GND) connections according to the relevant wiring diagram. 
 When a repair has been completed, the system should be armed and then disarmed. Then check and erase DTC memory 
using the VAG1551 Scan Tool (ST). 
 DTC memory records all static and sporadic malfunctions. When a malfunction occurs, it is first identified as a static 
malfunction. If it does not occur again it is registered as a sporadic malfunction, and the letters "/SP" appear at the right of 
the display. 
 After system is armed, all existing malfunctions are automatically re-classified as sporadic malfunctions and will only be 
registered as static malfunctions if they still occur after testing. 
 Sporadic malfunctions which no longer occur after 50 driving cycles are erased automatically.
 The three digit malfunction type number appearing next to the DTC is a data code which may be disregarded.
Pa
ge 10 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 11 of 44
01-116
 
DTC  
  
  
VAG 1551 scan tool 
display  Possible cause  
Corrective action  
01377        
Left Ultra-Sonic Sensor for 
ATW-G170       
 
Short circuit to B+ 
 
Short circuit between -G170- and 
control module -J347- 
 -G170- faulty Electrical Wiring Diagrams, Troubleshooting & 
Component Locations binder   
 Repair Manual, Body Interior, Repair Group 70
 
  - Repair wiring according to wiring diagram.
- Replace -G170-.
 Open circuit/Short 
circuit to Ground  
Open circuit in wiring between -G170- 
and control module -J347- 
 -G170- faulty Electrical Wiring Diagrams, Troubleshooting & 
Component Locations binder   
 Repair Manual, Body Interior, Repair Group 70
 
  - Repair wiring according to wiring diagram.
- Replace -G170-.
 Incorrect Signal 
 
Malfunctions during activation of 
ultrasonic interior monitoring - Perform function test   page 01
-128
 .Pa
ge 11 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 12 of 44
01-117
 
DTC  
  
  
VAG 1551 scan tool 
display  Possible cause  
Corrective action  
01378        
Right Ultra-Sonic Sensor 
for ATW-G171       
 
Short circuit to B+ 
 
Short circuit between -G171- and control 
module for ultra-sound sensors -J347- 
 -G171- faulty Electrical Wiring Diagrams, 
Troubleshooting & Component Locations 
binder   
 Repair Manual, Body Interior, Repair 
Group 70
    - Repair wiring according to wiring diagram.
- Replace -G171-.
 Open circuit/Short 
circuit to Ground  
Open circuit in wiring between -G171- and 
control module for ultra-sound sensors -J347- 
 -G171- faulty Electrical Wiring Diagrams, 
Troubleshooting & Component Locations 
binder   
 Repair Manual, Body Interior, Repair 
Group 70
    - Repair wiring according to wiring diagram.
- Replace -G171-.
Pa
ge 12 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 14 of 44
01-118
 
DTC  
  
  
VAG 1551 scan 
tool display  Possible cause  
Corrective action  
01379        
Interior Monitor 
Switch-E183   
Wiring malfunction between switch for passenger 
compartment monitoring -E183- and control module for 
ultra-sound sensors -J347- 
 -E183- faulty Electrical Wiring Diagrams, 
Troubleshooting & Component 
Locations binder    - Repair wiring according to wiring 
diagram. 
 Short circuit to 
Ground 1)   
 Repair Manual, Body Interior, Repair 
Group 68
    - Replace -E183-.
01380        
Alarm Via ATW 
Sensor rl   
Break in attempt at left-rear side window or after a function 
test 
 False alarm- Erase DTC memory.
- Perform function test   page 01
-128
 .
- Adapt sensitivity of sensors   page 01
-135
 . 
01381        
Alarm Via ATW 
Sensor rr   
Break in attempt at right-rear side window or after a 
function test 
 False alarm- Erase DTC memory.
- Perform function test   page 01
-128
 .
- Adapt sensitivity of sensors   page 
Pa
ge 14 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 17 of 44
01-120
 
V.A.G 1551 Scan Tool display  
Possible cause  
Corrective action  
01384 1)       
Alarm via glass break sensor  
(sensor for broken window glass rear 
left -G183-; sensor for broken window 
glass rear right -G184- and conductor 
loop for rear window heater)  
Short circuit or open circuit in harness 
connectors or in wire connections between 
glass break sensors and rear window heater 
to control module for ultra-Sound sensors -
J347- ATS was triggered by a break-in attempt via 
one of the side windows or the rear window. Conductor loop in one of the side windows or 
rear window has an open circuit False alarm Electrical Wiring Diagrams, 
Troubleshooting & Component 
Locations binder   
 Repair Manual, Body Exterior; 
Repair Group. 64; Side window Avant, removing and installing
   
 Repair Manual, Body Exterior; 
Repair Group. 64; Rear window Avant, removing and installing
    - Erase DTC memory
- Repair wiring according to 
wiring diagram 
- Replace side window with the 
interrupted conductor loop - Replace rear window with the 
interrupted conductor loop 
1) Only for Avant  
Pa
ge 17 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4 
Page 18 of 44
01-121
 
V.A.G 1551 Scan Tool display  
Possible cause  
Corrective action  
01403 1)        
Glass break sensors rear  
(sensor for broken window glass rear 
left -G183-; sensor for broken window 
glass rear right -G184- and conductor 
loop for rear window defroster)  
A short circuit or an open circuit occurs in the 
harness connectors or in the wire connections 
between glass break sensors and rear window 
heater to control module for ultra-sound sensors 
-J347- when setting ATS. A conductor loop of one of the side windows or 
the rear window is interrupted during setting of 
the ATS  Electrical Wiring Diagrams, 
Troubleshooting & Component 
Locations binder   
 Repair Manual, Body 
Exterior; Repair Group. 64; Side window Avant, removing and installing
   
 Repair Manual, Body 
Exterior; Repair Group. 64; Rear window Avant, removing and installing
    - Erase DTC memory
- Repair wiring according to 
wiring diagram 
- Check conductor loop in 
side windows and replace 
side window if necessary - Check conductor loop in 
rear window and replace rear 
window if necessary 
65535        
Pa
ge 18 of 44 Ultrasonic interior monitorin
g On Board Dia
gnostic 
(OBD
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.BD04.01.4