ad0761p600112e

Primary voltage (T1/2), testing electrical system of ignition system (ME-SFI)

Type ad · topic 07.61 · version 0100 · 2003-06-10

Applies to: ENGINE 120

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.61 ME fuel injection/ ignition system

EinPAS 15 Engine › 15.45 Engine management › 15.45.1 Basic information

Also applies to engines/gearboxes: 120 ***

AD07.61-P-6001-12E

Primary voltage (T1/2), testing electrical system of ignition system (ME-SFI)

Scope of test

Measuring instrument/

Test connection

Operation/Requirement

Specified value

Possible cause/Remedy

1.0

Primary voltage of ignition coil (T1/2) or (T1/8)

94

(2.94)

N3/11

N3/12

25

(1.25)

Test connection:

Primary detail display

Measuring range 400 V

Time range 100 %

Starter: Operate

200–350 V

1.1

Engine control module (ME-SFI) (N3/11) or (N3/12)

1.1

Primary winding of T1/2 and T1/1 or T1/8 and T1/7

94

(2.94)

N3/11

N3/12

83

(2.83)

Ignition: OFF

0.9–1.4 Ω

Resistance of an ignition coil is
0.5-0.7 Ω

T1/2 or T1/1, T1/8 or T1/7