49A2 - U0155 (DDE)

49A2 - U0155

Information saved in
DDE

Fault code
49A2 - U0155

Fault text
DDE: Message (outside temperature, 0x310): Signal(s) in
message not valid

Fault description
The diagnostic trouble code is logged when at least one
signal of the message A_TEMP_RELATIVZEIT is received
with an error value.

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 every 20 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 every 20 ms.
The error is checked in a 100 ms time grid.

Condition for fault memory entry
Debounce (6000 ms)

Action in service
Troubleshooting in transmitting control module.

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none