MKIV-Supra Posted August 5, 2015 Share Posted August 5, 2015 (edited) Hi Guys, my heater control unit is dead. I checked already the Fuse for the heater but its okay. I've also checked the 2 orange, if i have forgot them, but they are in. What could it be else? The complete Unit is dead since i installed my Radio and renewed the Fuse for the Instrument light. What could i measure to? Any ideas? Greetings Damien Edited August 5, 2015 by MKIV-Supra (see edit history) Quote Link to comment Share on other sites More sharing options...
MKIV-Supra Posted August 7, 2015 Author Share Posted August 7, 2015 (edited) So, i've checked the Fuse, the relays and the 2 Sockets going to the unit. I measured at the 20 pin socket the pin 8 to gnd and have 12v when ignition is on. Then i've checked the power on the clima receiver. I have there 12v too. Then i've measured my Cigarette and there is nothing. Could it be my error, when the cigarette lightner doesnt work, that the control unit dont work too. Edit: I've found my error. I only checked the Fuse for the Heater. Fuse from Cig was cracked too. So if someone should have the Problem, check the Fuse for heater, cig and ecu-b in the footroom! Edited August 7, 2015 by MKIV-Supra (see edit history) Quote Link to comment Share on other sites More sharing options...
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