Condition Plates Do Not Move (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:
Plates do not move
Terminal condition: TERM87
Voltage condition:
Battery voltage > 9V (k_egas_stm_dk_gt_ub)

Condition for fault memory entry
80 ms

Action in service
1. Check DK throttle valve assembly assembly for
mechanical resistance, check mechanical connection
2. Check plug, wiring harness and power supply,
3. Clear fault memory, EDR electronic throttle valve control
system test
4. Replace throttle vale sensor DKG1,
5. Clear fault memory, EDR system test
6. 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