CDA9

CDA9 - U112C

Information saved in
DME

Fault code
CDA9 - U112C

Fault text
Message 0x1B5 (A/C request)

Fault description
Lost Communication With Heat Flow/Load Moment A/C

Condition for fault identification
Test condition:
No new messages
Terminal condition: Wakeup
Voltage condition:
Battery voltage > 9V (k_can_ed_ub_min)

Condition for fault memory entry
39000 ms

Action in service
1. Check plug and wiring harness to a/c ECU,
2. Replace a/c ECU

Fault effect and breakdown warning
Air conditioner does not operate

Driver information
Warning light:
none

Service instruction
none