AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC A6 1995 C5 / 2.G AUDI AUDI https://www.carmanualsonline.info/img/6/1000/w960_1000-0.png AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC

Page 1 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-1
 
     
On Board Diagnostic (OBD) 
     
Function
 
      The Multiport Fuel Injection (MFI) system is 
equipped with an Engine Control Module (ECM) -
J220- with On Board Diagnostic (OBD) 
capabi

Page 2 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC VAG 1598/19), or the battery has been 
disconnected  Page 01
-62
 .  
Pa
ge 2 of 57 On Board Dia
gnostic 
(OBD
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=A

Page 3 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-2
      
Malfunction Indicator Lamp (MIL) 
function, checking
 
      If a malfunction is recognized by the Engine 
Control Module (ECM), this is indicated by the 
MIL coming on.  
    
Malfunction

Page 4 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-3
      
Checking function  
     
-  Switch ignition on.
     
   MIL must light up.
     
-  If MIL does not light when ignition is switched 
on, check wiring to MIL as follows: Cause:  
MIL is n

Page 5 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC       If wiring is OK:  
Malfunction:  
  
Motronic ECM -J220- is faulty; replace   Page 01
-57
 .  
- Check and erase Diagnostic Trouble Code (DTC) memory and 
generate new readiness code. 
Pa
ge 5 o

Page 6 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-4
       If MIL lights up when ignition is switched on, 
continue checking as follows:  
     
-  Start engine and let run at idle.
     
   MIL must go out after a few seconds.
      If MIL does n

Page 7 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC       If there is no continuity, and no short circuit to Ground:  
Malfunction:  
  
Motronic ECM -J220- is faulty; replace   Page 01
-57
 .  
- Check and erase Diagnostic Trouble Code (DTC) memory an

Page 8 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-5
 On Board Diagnostic (OBD) technical data
 
Memory  
 
Temporary memory and permanent memory (If the engine control module is disconnected from the Battery Positive 
Voltage (B+) supply, the read

Page 9 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC Functions under "Engine Electronics" address word 01:  Function 01: Check Control Module 
Version  Ignition switched on -or- Engine running at idle  
Function 02: Check DTC Memory   Engine running at

Page 10 of 57

AUDI A6 1995 C5 / 2.G AEB Engine OBD and DTC 01-6
 
Function 03: Output Diagnostic Test Mode   Ignition switched on  
Function 04: Basic Setting   Engine running at idle  
Function 07: Code Control Module   Ignition switched on  
Function 08: Re
Page:   1-10 11-20 21-30 31-40 41-50 ... 60 next >