ME-SFI gasoline injection system - Testing electrical system

AD07.61-P-6000F

ME-SFI gasoline injection system - Testing electrical system

25.11.2019

Engine

120

 Danger

Risk of death. Death may occur if body parts are drawn into rotating vehicle parts.

Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Secure area of rotating vehicle components against unauthorized access.

AS00.00-Z-0004-01A

 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

 Danger

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

Topical note

Notes on avoiding damage to ignition system

AH15.10-P-0002-01D

Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge

AD07.61-P-2000F

Socket box connection diagram - ME-SFI - testing of electrical system

Connect coupling from vehicle interior to multipoint connector 1 of test cable. Connect coupling from engine compartment to multipoint connector 2 of test cable.

AD07.61-P-2000-01B

Connector assignment for ME-SFI gasoline injection and ignition system

AD07.61-P-2000-02E

Tools for testing electrical system of ME-SFI fuel injection and ignition system

AD07.61-P-2000-06C



Measuring instrument/test connection column:



The numbers entered in brackets, such as e.g. in  1.0 (1.23) mean:



1 = coupling 1 in the wiring diagram



23 = connection 23 in the wiring diagram



Ignition OFF



Check

Function check

Test procedure

Operation/requirement

Specified value

Possible cause/remedy

1

ME-SFI [ME] control unit terminal 30, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-01E

2

ME-SFI [ME] control unit terminal 87L, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-70A

3

ME-SFI [ME] control unit terminal 87M1e, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-71A

4

Hot film mass air flow sensor, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-04E

5

Pressure sensor, electrics test, gasoline injection system ME-SFI



AD07.61-P-6000-06D

6

Fuel pump relay, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-07E

7

Coolant temperature sensor, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-08B

8

Intake air temperature sensor, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-05B

9

ME-SFI [ME] control unit rpm signal, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-09C

10

Lambdasensor signal upstream of CAT, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-42B

11

Lambdasensor heater upstream of CAT, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-43B

12

Lambdasensor signal downstream of CAT, electrics test, gasoline injection system ME-SFI



AD07.61-P-6000-44B

13

Lambdasensor heater downstream of CAT, electrics test, gasoline injection system ME-SFI



AD07.61-P-6000-45B

14

Fuel injection valves (Y64/1), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-72A

15

Fuel injection valves (Y64/2), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-73A

16

Fuel injection valves (Y64/3), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-59A

17

Fuel injection valves (Y64/4), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-60A

18

Fuel injection valves (Y64/5), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-61A

19

Fuel injection valves (Y64/6), electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-62A

20

Air injection relay, electrics test, gasoline injection system ME-SFI

With code 620 (vehicles with catalytic converter technology)

AD07.61-P-6000-24E

21

Air pump switchover valve, electrics test, gasoline injection system ME-SFI

With code 620 (vehicles with catalytic converter technology)

AD07.61-P-6000-25D

22

Camshaft timing adjustment solenoid, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-46B

23

Camshaft timing, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-47B

24

Purge control valve actuation, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-29D

25

Purge control valve vacuum control, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-30D

26

Purge system, electrics test, gasoline injection system ME-SFI

Model 129 as of 9/97  , model 140 

AD07.61-P-6000-31D

27

Activated charcoal canister shutoff valve, electrics test, gasoline injection system ME-SFI

Model 129 as of 9/97  , model 140 

AD07.61-P-6000-32D

28

Tank pressure sensor, electrics test, gasoline injection system ME-SFI

Model 129 as of 9/97  , model 140 

AD07.61-P-6000-33D

29

Purge monitoring pressure sensor, electrics test, gasoline injection system ME-SFI

Model 129 up to 8/97 

AD07.61-P-6000-48C

30

CAN bus, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-34D

31

Oil level indicator switch, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-49B

32

Oil temperature sensor, electrics test, gasoline injection system ME-SFI

Model 129 as of 6/98

AD07.61-P-6000-74A

33

Fuel consumption signal, electrics test, gasoline injection system ME-SFI

Up to 5/96

AD07.61-P-6000-63A

34

Diagnostics line, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-37B

35

Control unit coding, electrics test, gasoline injection system ME-SFI

At left ME-SFI [ME] control unit (N3/11)

AD07.61-P-6000-64A

36

Body acceleration sensor, electrics test, gasoline injection system ME-SFI

Up to 5/96

AD07.61-P-6000-65A

37

CAT temperature sensor, electrics test, gasoline injection system ME-SFI

Up to 5/96 

AD07.61-P-6000-66A

38

Fuel filler cap signal, electrics test, gasoline injection system ME-SFI

Model 140 up to 5/96 

AD07.61-P-6000-67A

39

CHECK-ENGINE indicator lamp, electrics test, gasoline injection system ME-SFI

Up to 5/96  , 

AD07.61-P-6000-68A

40

Bridge control unit coding, electrics test, gasoline injection system ME-SFI

AD07.61-P-6000-69A

41

Starter relay, electrics test, gasoline injection system ME-SFI

Model 129 as of 6/98

AD07.61-P-6000-03E