wiring diagram AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual A4 1996 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1108/w960_1108-0.png AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual

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AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual      
Before replacing a suspected malfunctioning 
component, check all related wiring, 
connections, harness connectors and Ground 
(GND) connections according to the appropriate 
wiring diagram.

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AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-11
      
-  Press button -1- for operating mode "Rapid data 
transfer." Rapid data transfer 
HELP
Enter address word XX
    
Indicated on display  
Notes:  
If display is blank, check wiring to VA

Page 15 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-12
       If one of the following messages is displayed:  Rapid data transfer 
HELP
Control module does not answer
    
Indicated on display  
or  
Rapid data transfer 
HELP
K wire not switchin
g t

Page 28 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-22
 Diagnostic Trouble Code (DTC) table
 
Notes:  
 
DTC changes affecting m.y. 1997   vehicles   page 01
-38
 .
 Diagnostic Trouble Codes (DTC) recognized by A/C control head -E87- and displayed o

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AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 02). After repair, erase DTC memory and end output (functions 05 and 06). 
 Use VAG1598 Test Box with cables VAG1598/11 and VAG1598/12 when testing DTC related wiring/connections to A/C 
control head

Page 30 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-23
 Notes  
 
If 22  C (72  F) is always displayed after switching ignition off and on, regardless of last setting, check power supply 
(terminal 30) to A/C control head -E87- using wiring diagram.

Page 31 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-24
 
VAG1551 scan tool 
display  Possible cause  
Corrective action  
00000   
No DTC recognized  If "no DTC recognized appears after performing repairs, OBD is ended.  
00529 2122  
Speed informat

Page 32 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-25
 
VAG1551 scan tool display  
Possible cause  
Corrective action  
00600  
Temperature Regulator Flap Motor 
Position Sensor -G92- for 
Temperature Regulator Flap Motor 
V681)  
Short circuit to

Page 34 of 91

AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-26
 
VAG1551 scan tool display  
Possible cause  
Corrective action  
00602  
Footwell/Defrost Flap Motor 
Position Sensor G114 in 
Footwell/Defroster Flap Motor V85
Short circuit to ground /SP

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AUDI A4 1996 B5 / 1.G AC System On Board Diagnostic Workshop Manual 01-27
 
VAG1551 scan tool 
display  Possible cause  
Corrective action  
00604  
Back Pressure Flap 
Motor Position Sensor 
G113 in Air Flow Flap 
Motor V71 
  
Short circuit to 
ground /SP 
  
Open c
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