Manufacturer Code Charts: 4390

4390 - P007D

Information saved in
DDE

Fault code
4390 - P007D

Fault text
DDE: Charge-air temperature sensor, signal: Open or short
circuit to positive

Fault description
Charge-air temperature sensor monitoring. The diagnostic
trouble code is logged when the raw sensor signal (voltage)
exceeds the specified upper limit 3260 mV.

Condition for fault identification
Test condition:
The monitoring function is only implemented when no
sensor power-supply problem is logged.
Voltage condition:
The monitoring function is only implemented when no
sensor power-supply problem is logged.

Condition for fault memory entry
Debounce (150 ms)

Action in service
1. Check wires and plug connections.
2. If wiring and plug connections are OK:
Replace charge-air temperature sensor.

Fault effect and breakdown warning
Proceed to the nearest BMW Service facility.

Driver information
Warning light:
MIL

Service instruction
none