Pressurized engine control fuel injection and ignition system, testing of electrical system

AD07.52-S-6000A

Pressurized engine control fuel injection and ignition system, testing of electrical system

19.11.2019

Engine

111.948/978 in model 638

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on avoiding damage to ignition system

Motor 111 mit Benzin-Einspritz- und Zündsystem PMS

AH15.10-P-0002-01D

Connecting and using test equipment

AD00.00-S-1000AZ

AD00.00-S-1000AZ

Connecting hand-held tester (HHT), reading fault memory

AD00.00-S-2000-03A

AD00.00-S-2000-03A

PEC fuel injection and ignition system test of electrical system socket box connection diagram

Vehicle on the vehicle lift or in the pit
In vehicles with an immobilizer (DAS) installed as standard, before testing begins, ensure that the locking function of the immobilizer has been enabled.

AD07.52-S-2000-08A

Remove/install headlamp

AR82.10-S-4720A

Remove/install front grille

AR88.00-S-2115A

Remove/install front bumper

AR88.20-S-2000A

Pressurized engine control (PEC) fuel injection and ignition system arrangement of components

GF07.52-S-0001-01A

Overview of wiring diagrams for mixture formation

PE07.00-S-1100A

Battery voltage 11-14 V
PEC system complete (all connectors inserted)

PE07.00-S-1100A



Only remove the control unit couplings when the ignition is switched off.

Function check

Test procedure

Operation/requirement

Specified value

Possible cause/remedy

2

Transmission detection Testing of programming of control unit PEC

AD07.52-S-6010-02A

3

Coolant temperature sensor Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-01A

4

Intake air temperature sensor Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-02A

5

Intake manifold pressure control unit Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-03A

6

Idle speed contact Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-04A

7

Throttle valve actual value potentiometer Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-05A

8

Actual value potentiometer drive Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-06A

9

Idle speed control Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-07A

10

O 2-sensor Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-08A

11

O 2-sensor, heating current testing of the electrics of the gasoline injection and ignition system PEC

AD07.52-S-6000-09A

12

Lambda control Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-10A

13

Cylinder 1 and 4 injection valve Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-11A

14

Cylinder 2 and 3 injection valve Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-12A

15

Self-adjustment of neutral Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-13A

16

Self-adjustment of partial load factor Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-14A

17

Ignition output stage 1 cylinder 1 and 4 Testing of electrical components of gasoline injection and ignition system PEC

without DAS

AD07.52-S-6000-15A

18

Ignition output stage 1 cylinder 1 and 4 Testing of electrical components of gasoline injection and ignition system PEC

with DAS

AD07.52-S-6000-15B

19

Ignition output stage 2 cylinder 2 and 3 Testing of electrical components of gasoline injection and ignition system PEC

without DAS

AD07.52-S-6000-16A

20

Ignition output stage 2 cylinder 2 and 3 Testing of electrical components of gasoline injection and ignition system PEC

with DAS

AD07.52-S-6000-16B

21

Crankshaft position sensor Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-17A

22

Coding plug Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-18A

23

Control unit (rpm signal TN) Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-19A

24

Vehicle speed signal Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-20A

25

Fuel pump relay Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-21A

26

Switchover valve purging Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-22A

27

Short-term self-adjustment Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-23A

28

Control unit Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-24A

29

immobilizer Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-25A

30

Exhaust flap Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-26A

31

Transmission protection function Testing of electrical components of gasoline injection and ignition system PEC

AD07.52-S-6000-27A