transmission AUDI A4 1997 B5 / 1.G AWM Engine Diagnostic Trouble Code Memory Checking Workshop Manual
Page 47 of 49
01-48
 
DTC  
DTC text  
Corrective action  
SAE  
VAG  
  
  
P1610   18018   Control module faulty  
- Replacing Engine Control Module (ECM)   Page 24
-22
P1612   18020   Engine Control Module (ECM) 
incorrectly coded  - Code Engine Control Module (ECM)   Page 01
-71
P1624   18032   Request for warning lamp on 
active
1)  
 Repair Manual, 5
-Spd. Automatic Transmission 01V, Repair Group 
01, On Board Diagnostic (OBD)
    - Exhaust related malfunction of Transmission Control Module (TCM)
- Check DTC memory of Transmission Control Module (TCM)
P1626   18034   Powertrain CAN-bus  
Missing message from 
Transmission Control Module  - Check data exchange between Engine Control Module (ECM) and 
other CAN capable control modules   Page 24
-178
 
1) The Transmission Control Module (TCM) recognized a malfunction that worsens engine emissions. The Transmission 
Control Module (TCM) sends the DTC to the Engine Control Module (ECM), which then switches on the Malfunction Indicator 
Lamp (MIL). Notes for Malfunction Indicator Lamp (MIL)   Page 01
-3 . The message P1624 is simultaneously stored in the 
Engine Control Module (ECM) as evidence that the Malfunction Indicator Lamp (MIL) was not switched on due to an engine 
problem but rather a transmission problem.  
Pa
ge 47 of 49 Dia
gnostic Trouble Code 
(DTC
) memor
y, checkin
g and erasin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.01.2