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Test readings, control module connections

Test readings, control module connections

Note

Testing using a test instrument must not be carried out on the ignition circuit with components connected.The components must be disconnected and a reference resistance connected before testing is carried out. Values can be read from the ignition circuit with components connected when using the diagnostic tool. The values stated for the diagnostic tool show within which interval the resisitance should be with a correct circuit.


Note

All units on the I and P-buses send signals.


75-pin connector

The following table contains values for testing the air bag system levels. Testing should be carried out using the diagnostic tool.

Number of connector pins 75


Connector K75


Pin Component/operation In/Out Test criteria Measure across Test reading Measurement value with reference resistance connected using BOB (Break Out Box)
1-8 No connection
9 Driver seat belt buckle In
10 Driver seat belt buckle In
11 Front passenger seat belt buckle In
12 Front passenger seat belt buckle In
13-14 No connection
15 Telematics
16-19 No connection
20 Driver seat belt tensioner Out 1.3 - 3.8 ohm
21 Driver seat belt tensioner Out 1.3 - 3.8 ohm
22 Front passenger seat belt tensioner Out 1.3 - 3.8 ohm
23 Front passenger seat belt tensioner Out 1.3 - 3.8 ohm
24 Front left side impact sensor In
25 Front left side impact sensor In
26 4D, 5D: Driver's side curtain CV: Activation unit, protective bow, driver's side Out 1.3 - 3.8 ohm
27 4D, 5D: Driver's side curtain CV: Activation unit, protective bow, driver's side Out 1.3 - 3.8 ohm
28 4D, 5D: Passenger side curtain CV: Activation unit, protective bow, passenger side Out 1.3 - 3.8 ohm
29 4D, 5D: Passenger side curtain CV: Activation unit, protective bow, passenger side Out 1.3 - 3.8 ohm
30 Driver side airbag Out 1.3 - 3.8 ohm
31 Driver side airbag Out 1.3 - 3.8 ohm
32 Front passenger side airbag Out 1.3 - 3.8 ohm
33 Front passenger side airbag Out 1.3 - 3.8 ohm
34-35 No connection
36 Driver seat position sensor
37 Driver seat position sensor
38 Passenger seat position sensor
39 Passenger seat position sensor
40-44 No connection
45 Rear driver side seat belt tensioner Out 1.3 - 3.8 ohm
46 Rear driver side seat belt tensioner Out 1.3 - 3.8 ohm
47 Rear passenger side seat belt tensioner Out 1.3 - 3.8 ohm
48 Rear passenger side seat belt tensioner Out 1.3 - 3.8 ohm
49 Front right side impact sensor In
50 Front right side impact sensor In
51-58 No connection
59 Passenger side C pillar sensor, In
60 Passenger side C pillar sensor, In
61 Driver Side C-Pillar Sensor OK In
62 Driver Side C-Pillar Sensor OK In
63-65 No connection
66 Battery disconnection 1.3 - 3.8 ohm
67 Battery disconnection 1.3 - 3.8 ohm
68-69 No connection
70 Passenger side B-pillar sensor, In
71 Passenger side B-pillar sensor, In
72 Driver Side B-Pillar Sensor In
73 Driver Side B-Pillar Sensor In
74-75 No connection


Note

Testing using a test instrument must not be carried out on the ignition circuit with components connected.The components must be disconnected and a reference resistance connected before testing is carried out. Values can be read from the ignition circuit with components connected when using the diagnostic tool. The values stated for the diagnostic tool show within which interval the resisitance should be with a correct circuit.


30-pin connector

The following table contains values for testing the air bag system levels. Testing should be carried out using the diagnostic tool.

Note

All units on the I and P-buses send signals.


Number of connector pins 30


Connector K30


Pin Component/operation In/Out Test criteria Measure across Test reading Measurement value with reference resistance connected using BOB (Break Out Box)
1 Ground In 1 - 15 B+
2 No connection
3 Front Airbag. Driver circuit 2 Out 1.7 - 4.3 ohm
4 Front Airbag. Driver circuit 2 Out 1.7 - 4.3 ohm
5 No connection
6 Front Airbag. Passenger circuit 1 Out 1.3 - 3.8 ohm
7 Front Airbag. Passenger circuit 1 Out 1.3 - 3.8 ohm
8 Infotainment bus In/Out Use test lamp 86 11 857 1 - 8 Test lamp flashes
9 Infotainment bus In/Out Use test lamp 86 11 857 1 - 8 Test lamp flashes
10 Front Airbag. Driver circuit 1 Out 1.7 - 4.3 ohm
11 Front airbag, driver, circuit Out 1.7 - 4.3 ohm
12 No connection
13 Front Airbag. Passenger circuit 2 1.3 - 3.8 ohm
14 Front Airbag. Passenger circuit 2 1.3 - 3.8 ohm
15 +30 feed In 1 - 15 B+
16-29 No connection
30 +15 feed In Turn Ignition On 1 - 30 B+