Dear ,

Am a DIY  and trying to help my friend with his Mitsubishi Pajero 4th gen 4x4 2010 having an issue with his car in limb mode , OBD Scanner says 4 ECUs (PCM TCM Cruise and Meter)gave the same code U1102 ; ABS/ASC/TCL timeout .

he took the car to many techs , and they said it needs new transmission,  only one of them opened the trany oil pan and checked the oil and the electrical wiring  , solenoids and tells no issues with it , while am still pointing to the ABS Module  .

This code comes directly after clearing ECUs and Disconnected the Battery. Then after putting in gear No Reverse, and stuck in Gear 3 , giving P1780 incorrect gear 2 ratio after driving the car . Noticing ISS Input shaft speed sensor in Transmission reads same as OSS Output shaft speed sensor after putting in gear D which should be gear 1 with ratio 1:3 , so I guess the car in limb mode 3rd gear . With no reverse at all like it's in N .

I went to ABS Module shown all wheel speed sensors working fine reading speed except for speed sensor (diff) differintial stays at 0km/hr . I can do active test for all available ABS functions gave to me by the Scanner  .

Also when am trying to get ABS module information,  it says code B035 🤔,  not like other modules giving me the module informations .

Is it the Differential speed sensor or The ABS Module  , or something else you can direct my attention to it  . Is it possible the ABS Module or the Differential speed sensor can cause reverse R not to engage and Limb safety mode .

Appreciate your help 🙏