Section 55 - Electrical System, Controller - Chapter 4
If no problem can be found in steps 1 to 4, clear all the Trans fault codes. Disconnect connector 351, turn Key On,
and check for fault 53 again.
If fault code 53 appears again, it is an internal problem with the transmission controller.
If fault code 53 does not appear any more, the problem must still be external. Repeat step 1 to 4.
NOTE: Pay attention to bent pin, loose pin, wire damage, and any possible shortage between pins and wires
55-4-18