407 Airbag Problem

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rookie65
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Joined: 10 Oct 2019, 03:41

407 Airbag Problem

Post by rookie65 » 10 Oct 2019, 03:42

407 2.2 Petrol Manual Sedan, Right hand drive
I have an Airbag fault.
Diagbox gives code E601, Level 1 drivers air bag ignition module fault
Cause Local
Characterisation of the fault Resistance to high

I have removed the Airbag, it has 2 ignitors, both read only 0.4 ohms with the shorting strip isolated. This seems odd as the error code is resistance to high.

I have removed the COM2003 unit and I am getting continuity through it from the Airbag plugs to the 2 outer lower plugs.

I have checked the connector under the Drivers Seat
Any ideas?
Thanks

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GiveMeABreak
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Re: 407 Airbag Problem

Post by GiveMeABreak » 10 Oct 2019, 11:26

E601 points to a fault on the driver airbag line first level - Resistance too high as you say. Measurement of an impedance higher than the maximum resistance threshold on the level one driver’s air bag line.

The suspect area is the Driver’s pyrotechnic trigger line assembly.

In order to get a diagram, you'll have to post your VIN up.

rookie65
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Joined: 10 Oct 2019, 03:41

Re: 407 Airbag Problem

Post by rookie65 » 10 Oct 2019, 19:18

Thanks, the VIN is VF3**************[VIN obfuscated, can be read by forum staff]

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GiveMeABreak
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Re: 407 Airbag Problem

Post by GiveMeABreak » 10 Oct 2019, 21:54

Ok, so here's a diagram - may or may not be much help - there is not further detail unfortunately for the earlier models.

6565 is the drivers's airbag.
You might find the code guide useful on the Wiki - the codes are in ascending order and in sections.

Wiki Electrical Component Codes

Image

rookie65
Posts: 3
Joined: 10 Oct 2019, 03:41

Re: 407 Airbag Problem

Post by rookie65 » 11 Oct 2019, 02:12

Thanks for that.
I have placed 2 x 3.3 ohm resistors in the 2 outer plugs of the Com2003 unit. The Airbag warning then goes away so it is either the Com2003 unit or the Airbag.
I have ordered some replacements.