I'm fairly new to diesel cruisers too. I just fixed an electrical issue today that I've been chasing for a month. The reason I'm posting here is that the fix brought my turbo to life and my HJ61's 12HT CAME TO LIFE. When I got my HJ61 last Oct. I knew jack about cruisers. My turbo indicator light was always showing amber/orange the only time the green light came on was at ignition. My electrical prob. was the battery light, ATF light and both turbo light were staying on and the voltmeter would rise all the way up with the RPM's of the engine. After changing out my external voltage regulator, which everything was pointing to and what a lot of people were saying it was, the problem persisted. I started chasing shorts, all the grounds tested good, finally I checked my old VR with a meter and it tested fine, I tested the new VR and it tested fine. So I hooked up the old VR and adjusted the relay side all the lights including the orange/amber turbo light went out and the in dash voltmeter went back to the normal range. I revved the engine and the turbo which I could hear with the hood open engaged. I tightened everything down and went around the block up some steep hills and the difference was amazing. so maybe your VR in on its way to going out and that could be the issue. What do you turbo lights do?
