P1543

P1543

Diagnosis information - Control unit DME (DFI)

Throttle adjusting unit - start test

Diagnostic conditions
- Throttle adjusting unit taught
- Switch on ignition, then
- Switch off ignition, for > 1 min
- Switch on ignition

Possible fault causes
- Throttle adjusting unit Faulty

Fault setting condition(s)
The start test was faulty twice in a row (See [Information]).

INFORMATION Start test: When the ignition is switched on, the throttle valve is opened by a certain value, and must then close on its own.