Search found 8 matches

by danaroypatton
Wed Mar 05, 2014 4:11 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

I guess I've got some more reading to do, as I suspect I'm in a similar predicament as many more before me. I almost cut and spliced every TCU wire today so I could diagnose this thing. Then I figured that's a bad idea. I need to read about the Select Monitor tool or any other ideas of how to read t...
by danaroypatton
Wed Mar 05, 2014 1:16 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

I'm in Alaska. I figured the FSM I am using is American - its written in English. But, I only looked at one. After your last post, I did find a '95 FSM that refers to the connectors as B54, B55, and B56 with identical pin arrangements. So, on the right track. Fuse 14 was indeed blown. The TCU is now...
by danaroypatton
Mon Mar 03, 2014 10:32 pm
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

You bring up a good point about the different TCUs - I just took the advice of local that they're a match. I found the '95 FSM, so I'll compare the pin layouts tonight. I still don't understand 33v, though. The car does have an old remote start installed, so I guess I'll start tracing that thing aro...
by danaroypatton
Mon Mar 03, 2014 2:38 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

I'm using the service manual, section 3-2a, page 178, and am testing the battery supply and ignition power supply. Yep, that's what I did. But instead of using a small light, I just spliced in to each of the three wires. I then ran unequal lengths (to keep them from shorting) of jumper wire into the...
by danaroypatton
Thu Feb 27, 2014 5:40 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

I don't understand that voltage unless there is a transistor.
by danaroypatton
Thu Feb 27, 2014 3:52 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

TCU terminals B83/1 and B85/6 are both receiving correct voltage, between 11.5v and 13.8v, when the switch is ON. TCU terminal B84/14, however, is not. It is supposed to receive 10 to 14 volts when the switch is OFF. It is receiving over 33v with the switch ON. It drops immediately to 5v when the sw...
by danaroypatton
Mon Feb 24, 2014 3:42 am
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Re: Another 4EAT power indicator post

Thanks for the replies, and great idea with the light. I'll try it this week and let you know what I learn.

Dana
by danaroypatton
Fri Feb 21, 2014 11:41 pm
Forum: Drivetrain
Topic: Another 4EAT power indicator post
Replies: 13
Views: 2221

Another 4EAT power indicator post

Hello. Thanks in advance for reading. A bit of a long post, I'm trying to provide as many details as possible. History I recently swapped a '95 4EAT (90k) and rear differential into my '92 Legacy L AWD Sedan. The original final drive ratio was 3.90, and is now 4.11. However, the winter tires I am us...