stefank Posted August 20, 2006 Report Share Posted August 20, 2006 Hi Friends, occasionally I'm getting two codes on my car: AC 1319 Sunload sensor short circuit This usually happens on very bright days, seems that the sensor is defective. Should I go ahead and replace it? I did not notice any problem with ac-system operation, I guess b/c it sets to a default value if the condition exists. TC 0073 This seems to happen if my little son has played with the rear blower switch and has not put it back to off before I switch of the ignition. The FSM states that one should replace the EBTCM if that condition exists. Is that really necessary? I don't experience any functionality problems with the traction control system. I thought I read somewhere about GM replacing theses EBTCMs for free as this is a known problem, is that correct or am I messing this up with another issue? Don't forget that over here spare parts are not readily available and have to be ordered. Also they are more expensive than in the US. Thanks for any comments Stefan Link to comment Share on other sites More sharing options...
KHE Posted August 21, 2006 Report Share Posted August 21, 2006 Theck the wiring to the sunload sensor to make sure it is not shorted - there should be a troubleshooting page in the shop manual. I would fix that since it does affect the A/C by compensating for direct sunlight. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
stefank Posted August 23, 2006 Author Report Share Posted August 23, 2006 Kevin, thanks a lot for your opinion, it's much appreciated! Best Stefan Link to comment Share on other sites More sharing options...
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