ad0752s600007a

PEC fuel injection and ignition system test of electrical system idle speed control

Type ad · emne 07.52 · version 0100 · 2003-06-06

Gælder for: ENGINE 111.948 /978 in MODEL 638

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 07 Blandingstilberedning › 07.52 Benzinindsprøjtnings- og tændingssystem PMS — Serie 638

EinPAS 15 Motor › 15.45 Motorstyring › 15.45.1 Grundinformation — Serie 638

Gælder også for motorer/gearkasser: 111 948, 111 978

AD07.52-S-6000-07A

PEC fuel injection and ignition system test of electrical system idle speed control

Scope of test

Measuring instrument/
Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

Idle speed control

on lower control stop

on upper control stop

in emergency-running mode

Ignition: ON

DTC memory

Leak air, throttle valve jams (possibly only temporarily), idle speed control in emergency-running mode.

Eliminate current and stored faults. Reset and re-activate memory of PEC control module,
AD07.52-S-2000-01A

if the fault is displayed again:

1.1

1.1

Idle speed control function

Engine: Idling

Actual value 02

Switch on ancillaries

(e.g. turn steering)

Speed reduces briefly, but then increases again.

1.2

AD07.52-S-6000-04A

1.2

Actuation

Engine: Idling

Throttle valve actuation

OPEN

CLOSED

Engine speed increases

Engine speed decreases

Cables

Control module

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