145 - MiTo   1.4 16v TJet   Driver's side airbag resist.   B0108   


To apply this procedure, the following must be borne in mind:

1 - Measurements cannot be taken on the Air Bag wiring

2 - System fault diagnosis should be started leaving the vehicle loads connected

3 - The fault should be 'Present' or 'Present Intermittently' and not 'Intermittent'. If the fault is Intermittent then the procedure is not applicable; proceed with an accurate check on the line where the fault was signalled

4 - Not all the simulation sensors are available (e.g. side impact sensors).

The airbag fault warning light is controlled by a dedicated connection to the airbag control unit Instrument Panel Node.

The Air Bag wiring is a safety component. If there are problems with the cables or the connectors then the wiring should be replaced in its entirety.

 

 

 

Test results

 

1

 

SIDE BAG CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Turn the ignition key to the STOP position. Disconnect the faulty side bag from the wiring and connect a dummy resistance in its place. Turn the ignition key to MAR and activate communication with the diagnostic equipment. Check whether the fault in the sidebag has become intermittent

 

Go to Step 2

 

The fault is still Present

 

Turn the ignition key to the STOP position.

Replace the side bag wiring

 Op. 5580C86 SIDE BAG CABLE LOOM (ONE) LH OR RH - R.R OR REPLACE

 

2

 

ELECTRICAL CIRCUIT CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check the electrical circuit

 

Go to Step 3

 

S.C. resistance too low

O.C. resistance too high

 

Restore correct operation

Restore correct operation

 

3

 

ELECTRICAL CONNECTION CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check the electrical circuit for short circuits to Vbatt. and earth.

 

Go to Step 4

 

Short circuit to Vbatt.

Short circuit to earth

 

1. Restore insulation to + battery

2. Restore insulation to earth

 

4

 

REPLACING THE SIDE BAG

 

All OK

 

Problems encountered

 

Operation

 

 

Turn the ignition key to the STOP position.

Replace the faulty side bag

 Op. 5580C44 FRONT SIDE BAG MODULE (ONE) LH OR RH - R.R

Delete the errors using the diagnostic equipment.

 

Go to Step 5

 

 

 

5

 

CORRECT OPERATION CHECK

 

All OK

 

Problems encountered

 

Operation

 

 

Check that the diagnostic equipment is not signalling other faults

 

End of diagnosis

 

The diagnostic equipment is signalling other faults

 

Proceed as instructed

 See table K080 AIR BAG FAILURE WARNING LIGHT ON