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Topic: Allison HT-746 ATEC "Dont shift alarm"  (Read 143 times) previous topic - next topic

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Allison HT-746 ATEC "Dont shift alarm"
Hi there-

I purchased my '93 U300 40' around a year ago and have run her 3000 miles.  Recently I went to take her out and immediately got alarm code on the Allison pad "don't shift" and she wouldn't clear first gear.  Parked her and unplugged the...

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Re: Allison HT-746 ATEC "Dont shift alarm"
Reply #1
JL,

Did you check the  ATEC code flasher light under the dash.  There is a switch for it that will flash the codes with the ignition on.

5 years ago I had a problem with a check trans light on, alarm beeping and flashing a code 32 (direction...

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Re: Allison HT-746 ATEC "Dont shift alarm"
Reply #2
Many thanks Jerry..I sent your comments to repair shop!