AUDI A4 2000 B5 / 1.G Brakes ESP Electrical Testing Service Manual
Manufacturer: AUDI, Model Year: 2000, Model line: A4, Model: AUDI A4 2000 B5 / 1.GPages: 65, PDF Size: 0.21 MB
Page 41 of 65

01-331
 
Function test: ABS warning light -K47-  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work stepsSpecified 
value  Corrective 
action  
17   -   Function of ABS 
warning light -K47-  DTC memory checked and no DTC present 
in DTC memory of ABS control module -
J104-. Ignition switched off Multi-pin connector connected to ABS 
control module -J104- and retainer catch 
engaged.      
     
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Page 42 of 65

01-332
 Continuation:  Function test: ABS warning light -K47-  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test 
requirements 
- Additional work 
steps Specified value  
Corrective action  
17   -   Function of 
ABS warning 
light -K47-  - Switch on 
ignition ABS warning light -
K47- lights up for two 
(2) seconds and then 
goes out.  - If ABS warning light does not come on, 
check voltage of electrical system and test 
wiring from terminal 32 of ABS control 
module -J104- to instrument cluster for short 
circuit to Ground (GND). 
     
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Page 43 of 65

01-333
 Continuation:  Function test: ABS warning light -K47-  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test 
requirements 
- Additional work 
steps Specified 
value  Corrective action  
17   -   Function of 
ABS warning 
light -K47-       
 Electrical Wiring Diagrams, Troubleshooting & 
Component Locations   
 Repair Manual, Electrical Equipment, Repair Group 
90; Instrument cluster
    - The ABS warning lamp does not switch off after 2 
seconds. The red "brake system malfunction" symbol 
lights up after 2 seconds. Check wire from terminal 32 
of ABS control module -J104- to instrument cluster for 
short circuit to B+ or open circuit. 
- If voltage of electrical system is OK and wiring from 
terminal 32 of ABS control module -J104- to instrument 
cluster is intact   there is a malfunction in instrument 
cluster. 
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Page 44 of 65

01-334
 
Function test: Red brake warning symbol  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work stepsSpecified 
value  Corrective 
action  
18   -   Function of red "brake 
system malfunction" 
symbol  
 Repair Manual, Brake System, Repair 
Group 47
   
Brake fluid level is OK Function of ABS warning light -K47- 
already checked in step 17. Multi-pin connector connected to ABS 
control module -J104- and retainer 
catch engaged. Switch on ignition      
     
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Page 45 of 65

01-335
 Continuation:  Function test: Red brake warning symbol  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work stepsSpecified value  
Corrective action  
18   -   Function of red 
"brake system 
malfunction" 
symbol  
  - Connect VAG1551 scan tool 
and select address word 03 
- For vehicles with automatic 
transmission and instrument 
cluster with DIS, depress the 
brake pedal and select a 
driving gear. The ABS/EDL indicator lamp 
and the red "brake system 
malfunction" symbol light up. 
If the traction control indicator 
light is OK, it lights up as 
well.   Repair Manual, 
Electrical Equipment, Repair Group 90; Instrument cluster
    - Malfunction in 
instrument cluster 
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Page 46 of 65

01-336
 
Function test: Traction control indicator light -K86-  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work stepsSpecified 
value  Corrective 
action  
19   -   Function of traction 
control indicator light -
K86-  DTC memory checked and no DTC 
present in DTC memory of ABS control 
module -J104-. Ignition switched off Multi-pin connector connected to ABS 
control module -J104- and retainer catch 
engaged.      
     
See continuation on next page  
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Page 47 of 65

01-337
 Continuation:  Function test: Traction control indicator light -K86-  
Test step  
VAG  
1598/20 
sockets  Test of  
Test 
requirements 
- Additional work 
steps Specified value  
Corrective action  
19  
  
Continuation:  -   Function of 
traction 
control 
indicator light 
-K86-  - Switch on 
ignition Traction control 
indicator light -K86- 
comes on for two 
(2) seconds and 
then goes out.  
 Electrical Wiring Diagrams, 
Troubleshooting & Component 
Locations    - If traction control indicator light does 
not light up, check vehicle voltage and 
wire from terminal 31 of ABS control 
module -J104- to instrument cluster for 
short circuit to B+ and open circuit. 
- If traction control indicator lights 
continuously, test wiring from terminal 
31 of ABS control module -J104- to 
instrument cluster for short circuit to 
Ground (GND). 
     
See continuation on next page  
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Page 48 of 65

01-338
 Continuation:  Function test: Traction control indicator light -K86-  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test 
requirements 
- Additional work 
steps Specified 
value  Corrective action  
19   -   Function of 
traction control 
indicator light -
K86-       
 Repair Manual, Electrical Equipment, Repair 
Group 90; Instrument cluster
    - Are voltage of electrical system OK and wiring 
from terminal 31 of ABS control module -J104- 
to instrument cluster intact?   malfunction in 
instrument cluster 
Pa
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Page 49 of 65

01-339
 
Function test: Traction control button; set measurement range on VAG1526: 20 V =  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work stepsSpecified 
value  Corrective 
action  
20   -   Function of 
ASR/ESP button  Ignition switched off Function of traction control indicator light -
K86- already checked in step 19. Multi-pin connector connected to ABS control 
module -J104- and retainer catch engaged.      
     
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Page 50 of 65

01-340
 Continuation:  Function test: Traction control button; set measurement range on VAG1526: 20 V =  
Test 
step  VAG  
1598/20 
sockets  Test of  
Test 
requirements 
- Additional work 
steps Specified value  
Corrective action  
20   -   Function of 
ASR/ESP 
button  
  - Switch on ignition     
        
- Press ASR/ESP 
button Traction control 
indicator light -K86- 
lights up  - Switch off ignition.
- Detach multi-pin connector from 
ABS control module -J104- and 
remove. 
        
- Press ASR/ESP 
button again Traction control 
indicator light -K86- 
goes out  - Connect VAG1598/20 test box.
     
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