Pronto m91 I have a invacare pronto m91 with surestep i changed the batt and after reinstall all i am getting is the two red lights flashing 3 times on my spj-80 joystick

Rhonda Grazulis

• 1 Answer
• Posted on Jun 02, 2014

SOURCE: one red light three green flash when turned on

my pronto sure step is flashing 9 times on the wrench and Im unable to turn the chair off. HELP

SOURCE: One of my residents has a Pronto M91 Sure Step and

just replace the keypad or if you are mechanically inclined remove joystick take the top off and glue a small piece of foil to the bottom of the on/off button reassemble and try that if that doesn't fix it order a new pad from a provider in your area

Testimonial: "thank you so very much for your help. It is much appreciated. Have a great day."

SOURCE: i lost the power cord to the m91 pronto surestep.

At Wally World (Wal Mart) any computer type plug will work Hope this helps

wcdoc1953

• 280 Answers
• Posted on Feb 13, 2011

SOURCE: Had the Pronto M91 invacare wheelchair in the Push

You definitely need new batteries. After that amount of time the batteries go bad and the plates inside become sulfated. They are only good as boat anchors now.
It is a easy do it your self repair. There are 2, Group 22 batteries in this model. You want to get deep cycle sealed lead acid, preferably AGM (advanced glass matt) group 22 batteries.
Flip the seating system back by releasing the lever under the front of the seat.Make sure you do not pinch the joystick wiring at the back when you do this.
Remove the black plastic cover.
The batteries will be secured by a strap which you should unbuckle.
Disconnect the plugs to the batteries and note how they are run, oriented and connected.
Pull out the batteries, one at a time, from the base.
Make the wiring connections to the battery , put the batteries back in the chair, plug everything in and you are set to go. Hope this helps.

SOURCE: Invacare Pronto Sure Step M91.

Good day!!!!


Please try to reconnect all connectors on the board...

after that try to test the machine...if persist,please check the voltage of your battery if it is 12vdc it should have at least 11vdc and if 24vdc it should have 23vdc...if the battery is lower try to replace it..

If the battery is good the problem is on the main control board..

if that so you need to replace it..please contact your manufacturer or dealer to buy the parts you needed..

Thanks for using fixya..

Have a nice day!!!