ME-SFI ignition system - Testing electrical system

AD07.61-P-6001C

ME-SFI ignition system - Testing electrical system

25.11.2019

Engine

104.941/943/944/991/994 as of 8/1/96

Engine

104.995

as of model year 1997

with code 494 (US version)

with code 498 (Japanese version)

with code 807 (Model year 1997)

with code 808 (Model year 1998)

 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

Connecting and using test equipment

AD00.00-P-1000AZ

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

AD00.00-P-2000-03A

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

Engine 104.941/943/944/991/994 as of 8/1/96
-Engine 104.995
as of model year 1997
with code 494 (US version)
with code 498 (Japanese version)
with code 807 (Model year 1997)
with code 808 (Model year 1998)-

AD07.61-P-2000C

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

Plug with red identification is currently not yet required, as still no function available in ME-SFI [ME] control unit

AD07.61-P-2000-01A



When removing the couplings at the ME-SFI [ME] control unit, first remove the center coupling; during attachment, the center coupling D is the last to be attached.



Measuring equipment/ test connection column:



The numbers entered in brackets, e.g. in  1.0 (2A) mean:



A = coupling A in wiring diagram



2 = socket 2 in wiring diagram



Ignition OFF



Check

1

ME-SFI [ME] injection system electrics check ME-SFI [ME] control unit circuit 30

AD07.61-P-6001-01C

2

ME-SFI [ME] injection system electrics check ME-SFI [ME] control unit circuit 87

AD07.61-P-6001-02C

3

ME-SFI [ME] injection system electrics check ignition coil (T1/1)

AD07.61-P-6001-03C

4

ME-SFI [ME] injection system electrics check ignition coil (T1/2)

AD07.61-P-6001-04C

5

ME-SFI [ME] injection system electrics check ignition coil (T1/3)

AD07.61-P-6001-05C

6

ME-SFI [ME] injection system electrics check crankshaft position sensor

AD07.61-P-6001-09C

7

ME-SFI [ME] injection system electrics check camshaft Hall-effect sensor

AD07.61-P-6001-10C

8

ME-SFI [ME] injection system electrics check primary voltage (T1/1)

AD07.61-P-6001-11B

9

ME-SFI [ME] injection system electrics check primary voltage (T1/2)

AD07.61-P-6001-12C

10

ME-SFI [ME] injection system electrics check primary voltage (T1/3)

AD07.61-P-6001-13C

11

ME-SFI [ME] injection system electrics check ignition voltage

AD07.61-P-6001-17C