gmv93

Bulbs were out, so i decided to put some LEDs as i did on few of my cars previously. Car is 1997 4.0 ZJ laredo, hvac system is manual control without a LCD or auto fonction.(three *****, blower speed, direction of air, heat)

Actually i did, but we lost steel ***** and springs inside middle switch which acts a multipurpose switch, that directs vacuum to different sections of system to direct blown air and it controls system as off, aircondition on for defrost and others.

When we lost ***** inside middle ****, and after several tries with custom made several springs, i decided that this could not be fixed with custom things, and to get heat, actually to make blower work(not to freeze outside), i soldered contacts inside of middle ****( normally combination of three steel ***** direct and close circuit). when three slits soldered,blower works. ac button seems operational with its green LED, bu it has no function.

now system works, AC is always on. when i remove relay(under hood) it goes off. I am wondering if i can find a new unit over ebay but what if they lost ***** or springs inside(there are several listing which can be sent to my country over ebay), ??

so if no chance to find a working unit, if i use wires from AC switch to relay and if i cut original trigger wires on relay, and if i use stock AC switch on panel to trigger relay, will it work? what do you think? by this way it will cut power on relay when i release AC switch. + wire will be supplied with 12 volts from battery with a seperate fuse. when i press Ac switch it will illuminate and it will trigger wire directly and it will turn on AC clutch(like i install relay in its place).

gmv93

done! i run a new wire to power distibution centre under hood. i disconnected orange colored ground/12 dimmer wire ( i dont know why it is there anyway) on A/C clutch relay side, new cable soldered to cut orange wire. on harness side orange was taped to prevent short circuit. on manual control hvac panel, i run a short length wire from AC button inside panel (from LED + ), and connected two wires. now it works.

at least i do not need to buy a panel from scrap yard. only there is no off mode because of temporarily fixed middle ****. fyi.

gmv93

another note from yesterday. i connected car to diagnosis device. it shows AC relay DTC code. so if relay is broken or it is removed becasue of a reason, it triggers a code for relay. FYI.