Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 06-09-2013, 08:56 PM   #1
Junior Member
Join Date: Dec 2010
Location: Houston, TX
Posts: 19
More problems '05 Monaco, Dash Code T46

I took the Monaco 2005 out to run it and get fuel. After about 40 minutes of driving the dash alarm came on. The dash code was "T46" I can't find this warning anywhere. I checked the shift selection diagnostic codes and found
"1 6 3 4 0" When I looked this up the manual said "Check input wiring, switches, and connectors to determine why input states are different." Can someone translate this into Newbie language? Just have no idea where to go now!
Thanks for any help.

slandbc is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-09-2013, 10:45 PM   #2
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 11,963
You Allison trans uses at least 2 and on some models 3 speed sensors to determine proper trans operation. A poor connection at one of the sensors, sending a low or erratic signal to the controller can be to blame , or you've got the very first indications of a sensor failure. The sensors on my trans are on the drivers side of the trans , with a wiring harness connecting them , two wires in each connector ; my harness has 3 connectors but only 2 are used; sensors are 1 near the engine end for torque convertor RPM, and the other on the tail shaft, near the U joint.
Pull the connectors off the sensors, check for corrosion, use a spray electrical contact cleaner if any clean up is necessary. Follow the wiring harness back and look for any damage, and pull the main connector between the trans harness and the chassis, look for any corrosion there too, then do the same at the Allison trans controller, sorry I can't be sure where the control is on your coach , but it's about 8" square by 2" thick with the Allison logo on it , pull the connectors and check for corrosion.
Disconnect your chassis batteries before you start, any battery disconnect over 20 mins. should clear the fault code, re-connect batteries and road test.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Firestone Air Bag Replacement on 2001 Monaco Dynasty Yukon Jack Class A Motorhome Discussions 15 06-17-2014 06:41 PM
Onan 8000 quiet diesel shutting down code 33 fix pub1898 RV Systems & Appliances 1 06-10-2013 01:27 PM
buying a 2004 Monaco Diplomat trigud Full-Timers 5 06-09-2013 08:47 AM
Monaco trailing arms Learner Monaco Owner's Forum 9 06-07-2013 04:16 AM
dash heater blower bearings are done llavigne Class A Motorhome Discussions 7 05-31-2013 07:57 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:59 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.