wheel AUDI A4 2000 B5 / 1.G APB Engine Motronic Syst
Page 100 of 166
01-82
      
Actuating Leak Detection Pump (LDP) -V144-  
     
- 
Press button.Output Diagnostic Test Mode EVAP s
ystem leak detection pump
    
Indicated on display  
The change over valve in the LDP is activated for approximately 1 minute 
(clicks), unless the   button pressed to switch to the next actuator.  
Note:  
The clicking can be heard by listening in the area of the left rear wheel 
housing. 
If valve is not actuated (does not click):  
 Repair Manual, Fuel Supply System, Repair Group 20, Components of EVAP system servicing, Checking Leak Detection Pump (LDP) 
-V144
   
Pa
ge 100 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
Page 114 of 166
01-94
 Coding variations of Engine Control Module (ECM)  
Country/  
Emission standard  Power train /  
Additional systems  Transmission  
Type of 
vehicle  
00 = ------------------   0 = ------------------   0 = ------------------   0 = ---------
---------  
01 = ------------------   1 = ------------------   1 = 6-speed manual 
transmission  1 = A4  
02 = ------------------   2 = ------------------   2 = ------------------   2 = ---------
---------  
03 = ------------------   3 = ------------------   3 = ------------------   3 = ---------
---------  
04 = ------------------   4 = ------------------   4 = ------------------   4 = ---------
---------  
05 = -------------------   5 = ------------------   5 = 5-speed automatic 
transmission (ZF) 
(5HP24)  5 = ---------
---------  
06 = USA; TLEV (Exhaust emission 
standard) NOTE: Vehicles with Leak 
Detection Pump (LDP)  6 = All-wheel drive without Anti Slip 
Regulation (ASR)/Electronic Stability Program 
(ESP) (with CAN-Bus system)  6 = ------------------   6 = ---------
---------  
07 = -----------------   7 = All-wheel drive with Anti Slip Regulation 
(ASR)/Electronic Stability Program (ESP) 
(with CAN-Bus system)  7 = ------------------   7 = ---------
---------  
Notes:  
Pa
ge 114 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1 
Page 116 of 166
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Determine the code number according to the 
following example:  
     
USA; TLEV (emission standard)   06           
All-wheel drive without ASR/ESP      6        
6-Speed manual transmission         1     
Audi A4            1  
Code number   06   6   1   1  
Pa
ge 116 of 166 Motronic s
ystem, On Board Dia
gnostic 
(OBD
)
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.01.1