FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

49A3 - U0155 (DDE)

49A3 - U0155

Information saved in
DDE

Fault code
49A3 - U0155

Fault text
DDE: Message (outside temperature, 0x310): Message from
instrument cluster failed

Fault description
If the message A_TEMP_RELATIVZEIT is not received
the diagnostic trouble code is logged.

Condition for fault identification
Test condition:
The following conditions must be satisfied:
- The message must be active.
- Terminal 15 must be active.
The signals are transmitted in cycles with a periodicity of
1000 ms.
The error is checked in a 100 ms time grid.
Voltage condition:
The following conditions must be satisfied:
- The message must be active.
- Terminal 15 must be active.
The signals are transmitted in cycles with a periodicity of
1000 ms.
The error is checked in a 100 ms time grid.

Condition for fault memory entry
Debounce (6000 ms)

Action in service
Conduct CAN system analysis.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none