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We could be of more help if you were to describe exactly what is happening when you attempt to start your XK.
Ignition comes on, but no chance to start the engine, also no starter noise. Driver airbag is deployed. Yesterday connected to the computer - error B10A2 (communication problem in the control unit: engine)
Is there a warning message on dash? Here’s a reference from the workshop manual, but it suggests it should reset with ignition on off
INERTIA SWITCH TRIPPED
Amber warning triangle illuminated LCD.
Message appears when the crash status signal from the RCM (restraints control module) changes to crash detected or a fault in the restraints system prevents the message from being transmitted.
RCM can be rest with an ignition on/off cycle. If fault has occurred, then investigate cause of fault and interrogate the RCM for faults and diagnose using a Jaguar approved diagnostic system
If they did then it's the two black "V" shaped switch When they are apart this cuts all power to the car. A simple cable tie pulling them together will allow the power to the car.
if the bonnet bags did go of and you are un sure of what I am trying to explain, let me know and I will post a photo of the switch I am talking about.
Ignition comes on, but no chance to start the engine, also no starter noise. Driver airbag is deployed. Yesterday connected to the computer - error B10A2 (communication problem in the control unit: engine)
From the workshop manual B10A2:
"Refer to the electrical circuit diagrams and check restraints control module pulse width modulated SRS signal line circuit, hard wired connection between engine control module and restraints control module for short circuit to ground, short circuit to power, open circuit. Repair circuit as required, clear the DTC and retest."
To clarify or speculate on what this means, there is likely no inertia switch like those of older models. There isn't one in the EPC so I don't think it exists. It's an SRS circuit that needs to be corrected before the signal is completed.
If they did then it's the two black "V" shaped switch When they are apart this cuts all power to the car. A simple cable tie pulling them together will allow the power to the car.
if the bonnet bags did go of and you are un sure of what I am trying to explain, let me know and I will post a photo of the switch I am talking about.
Ok, if your bonnet air bags go of then this black pair of switches will separate into a V shape (screwdriver pointing). They are spring loaded. When they do spring out it will cut all power to the car.
in the second picture you can see I used a cable tie to keep them together while I was doing a job on the car with the air bags removed from there located positions. This allowed the all power to the car so it could still be started and operated as normal.
Hope this helps some one understand a little more.
