Motronic M 1.5.4 Quick Check F5:ACTUATOR TEST
IDLE AIR CONTROL
| Conditions for Checking | Nominal Value |
Affected Terminals: 4, 24
Possible Trouble Codes: 56, 57
Ignition ON
Engine OFF
Press key F5 in the system main menu, select the desired test using the arrow keys and confirm with YES. Follow the instructions in the diagnostic tester display.
Note:
| The idle speed steeper control is actuated at a frequency of 0.5 Hz and the idle speed stepper motor moves between its two end positions. The check is completed after a maximum of 30 s. | Noise check: |
|---|---|
| Clicking noise from idle speed stepper motor |