Condition Wire Permanently Enabled (DME)

2B21 - P1628

Information saved in
DME

Fault code
2B21 - P1628

Fault text
Throttle-valve actuator pre-drive check, bank 1

Fault description
Throttle Valve Actuator Spring Test Malfunction during
Opening (Bank 1)

Condition for fault identification
Test condition:
Wire permanently enabled
Terminal condition: TERM87
Voltage condition:
none

Condition for fault memory entry
300 ms

Action in service
1. Check enable wire B1
2. Clear fault memory, perform EDR electronic throttle
valve control system test
3. Replace EDR1

Fault effect and breakdown warning
CC message
Engine speed limited
Reduced power
MIL after engine runs 2x

Driver information
Warning light:
MIL, EML, CC message, backup program

Service instruction
none