Manufacturer Code Charts: 138401

138401 - P304A

Information saved in
DME

Fault code
138401 - P304A

Fault text
Radiator shutter, top, actuator internal: electrical fault

Fault description
The diagnostic function monitors the radiator vent slat
actuator for internal electrical faults.

Condition for fault identification
Test condition:
The fault is recognized when the actuator for the radiator
vent slats reports an internal electrical fault via the LIN bus.
Potential problem source(s):
- Defect in radiator vent slat assembly
Terminal condition: Terminal 15
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Replace radiator vent slat assembly

Fault effect and breakdown warning
Breakdown notice:
Continued driving possible, avoid subjecting engine to
major loads. (mountain driving, full throttle, etc.)
Possible apparent symptoms:
Engine could overheat if the vent slats remain closed while
demand for engine power is high.

Driver information
Warning light:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: off
- CC message: none
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None