Secondary air injection relay, ME-SFI fuel injection system electrical testing

AD07.61-P-6000-24D

Secondary air injection relay, ME-SFI fuel injection system electrical testing

111.974

With code (494a) USA version

with CODE (807) model year 1997

with CODE (808) model year 1998





Scope of test

Tester/test connection

Operation/

prerequisite

Specified value

 Possible cause/

remedy

1.0





Air pump relay (in fuse and relay module K40/4)

111.974 with CODE (494a) USA version

with CODE (807) model year 1997

with CODE (808) model year 1998

Actuation

K40/4 power consumption

20 

(28C)

3 

(3A)

N3/10





N3/10





 2

(2A)

 20

(28C)

Remove connector from coolant temperature sensor (B11/4) and simulate with 2.5 kΩ decadal resistor at sockets 1 and 4.

Engine: idle speed:

Ignition: ON:

11 - 14 V

for approx. 2 min and air pump running

0.1 - 0.3 A

 Cable

 Air pump fuse

 K40/4

 ME-SFI control module (N3/10)