What causes the transmission to go into limp mode? on 2001 Suzuki Grand Vitara

Where are the eletrical sensors for the transmission located?

Asked by for the 2001 Suzuki Grand Vitara
2 answers 1 comment
SCAN CODES AND POST OR SEEK A FREE DIAG THRU AAMCO AND POST FINDINGS
Obd2 codes are P0153, P0430 & P0001.
I'm not sure if it makes any difference but the vehicle is not a. 2001grand vitara, it is actually a 2001 xl7, when I went to post there was no selection for the xl7.
Any "fault" will cause the trans to go into limp mode. Recommend a qualified shop check that out so you do not waste $$$ guessing.