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No communication with TCM

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17 Apr 2025 02:07 #260149 by Ntmods
    I have a 2 door 2021 model jimmy ! Repairable writeoff ! All front impact damage no just panel damage ? Driver and pass airbag deployed ? Both airbags replaced and all seat belts ! Including airbag module all fault codes for Abs erased ? Now left with no communication with TCM so I replace TCM with finer vehicle exact matching numbers from no fault car ? But cannot get rid of fault codes , Suzuki telling me I need to buy a genuine TCM from them @ 2300 smackers ! Wreckers are adamant there TCM was fine when sent ! Need help before dropping pants at Suzuki 

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  • Lambert
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  • The quickest Jimny in Harrogate...(that I own)
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17 Apr 2025 06:06 #260150 by Lambert
Replied by Lambert on topic No communication with TCM
No comms at all suggests a wiring or more likely plug connection issue either something got cut through or just not plugged in. Also might be a fuse.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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17 Apr 2025 14:13 #260151 by fordem
Replied by fordem on topic No communication with TCM
Maybe start by checking for power & ground at the TCM.

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17 Apr 2025 14:57 #260152 by mlines
Replied by mlines on topic No communication with TCM
Here is the recommended step for no TCM


Here are the wires and connectors that the step refers to

 

 
 

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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