Does anyone know what this code is? (2004 SC 5.4)

 

4-2 should be a Restraint System - Impact Sensor Fault (Front Impact severity sensor Circuit Fault)

 

Deactivate the system properly.

Check and reseat the connectors at the sensor and at the RCM.

Sometimes it's just some corrosion in the connector pins and reseating the connector will re-make the electrical circuit.

Steve

 

Where is this sensor located?

 

Hey projectSHO89,

I just got the same code today again. It did it a few days ago now its back.
Does disconnecting the battery deactivate the system properly also where is the sensor located and what is the RCM and where is that.

Thanks Brian.

 

The sensor is located on the vertical on the radiator support in front of the radiator DO NOT MAKE ANY ATTEMPTS TO WORK ON THE SYSTEN WITH OUT DISARMING THE AIR BAG SYSTEM YOU COULD GET VERY HURT. i can help you with the disarm procedure.

 

Thanks for the reply cva-59,

Well it must be a bad connection as the air bag light went off again. Could you please tell me how to disarm the system so i can check the sensor connection on the rad support? Is there one or two sensors on the support? Air temp sensor and the one your talking about? If so which one do i check?

Thanks.

 

Turn all accessories off. Turn ignition off. Remove the fuse (RCM #19 10
Amp) from the central junction box. This is for a 2007 yours might be the same but check your owners manual under fuses.Turn the ignition on and monitor the air bag indicator for at leasr 30 seconds. The light will remain lit (no flashing)if the correst fuse has been removed. Then turn the ignition off. Remove negative battery for at least one minute.The sensoris located below the ambient air temp sensorThen reconnect the battery

 

To repower the systen turn ignition on install the fuse STAY CLEAR OF ANY AIRBAG MODULE. Turn ignition key to off Wait 10 seconds then turn key on. Lok at the air bag indicator. It will light for approx 6 secondsand then turn off.If there are still faults in the system the light will come on again. If it reappears. I suggest that you take it to dealer. This procedure came straight from a factory service manuel. Bob

 

Hey thanks Bob.

So your saying to turn ignition on then put the fuse back in? Ill give it a go.

Thanks again for the info.

Brian.