2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 116
Repeatedly disconnect the plug and then re-insert it
FIRMLY)
4. Replace plug and/or wire as indicated
5. Replace the affected downstream (post-cat) O2 sensor
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2CEC
2CEC – P1638
Information saved in
DME
Fault code
2CEC – P1638
Fault text
Throttle-valve actuator, jamming briefly
Fault description
Throttle Valve Position Control Throttle Stuck Temporarily
(Bank 1)
Condition for fault identification
Test condition:
Throttle valve test
Engine must be running
Throttle valve adaptation must not be in progress
Throttle valve actuator must be under current
No emergency default mode operation
Terminal condition: Terminal 15 ON
Voltage condition:
none
Condition for fault memory entry
0.5 sec.
Action in service
none
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
2CED
2CED – P1639
Information saved in
DME
Fault code
2CED – P1639
Fault text
Throttle-valve actuator, jamming continuously
