Condition Actuator Reports System Error
2B15 - P0638Information saved in
DME
Fault code
2B15 - P0638
Fault text
Throttle-valve actuator, governor monitoring, Bank 1
Fault description
Condition for fault identification
Test condition:
Communications and CAN OK
Terminal condition: Terminal 87
Voltage condition:
none
Condition for fault memory entry
Actuator reports system error
Action in service
1. Delete stored DTCs from error memory, conduct system
test for electromotive throttle-valve actuator
2. Check plugs and wiring harness for throttle-valve sensor 1
and electromotive throttle-valve actuator 1
3. Replace throttle-valve sensor 1 or Bank 1 electromotive
throttle-valve actuator
Fault effect and breakdown warning
Engine speed limited to 3500 rpm / Check Control message /
power reduction / MIL comes on after engine runs 2x
Driver information
Warning light:
29-Engine malfunction
Service instruction
none