I RECENTLY INSTALLED AN AFTERMARKET CD PLAYER EVERYTHING WORK PERFECT UP UNTIL LAST WEEK THE AC CONTROLS DONT WORK, BLOWER MOTOR DOES NOT WORK, THE ONLY THING THAT WORKS ON THE PANEL IS THE AC BOTTON..I CHECKED THE FUSES, LOOSE WIRES, BUT THE THING IS I DIDNT TOUCH ANYTHING ON THE AC CONTROL PANEL THAT WOULD CAUSE IT NOT TO WORK... IVE TRIED TO DIAGNOSE THIS PROBLEM SINCE THEN AND STILL NO PROGRESS,THE ONLY THING I HAVE NOT CHECKED IS THE 2 BLUE BLOWER RELAYS(COULD IT BE THE RELAYS?)
COULD IT BE A BAD GROUND..

PLEASE HELP!!!!

Hey, man. Welcome to the forums, but for the 1994 version, you need to post up in the Nissan trucks section rather than the Datsun trucks. Here is a link! nissan-trucks-forum.html

thanks

You will need to remove the radio bezel to remove the control unit. Check to make sure the wiring harness hasn't been disturbed that plugs into the unit. You might have a bad switch for the fan as well.