On Board Diagnosis Logic

WARNING: This page is about a different variant/trim than selected.

This is not an OBD-II self-diagnostic item.
Diagnostic trouble code "P1731" with SDT or 13th judgement flicker without SDT is detected under the following conditions.
- When TCM does not receive the proper voltage signal from the sensor.
- When TCM monitors each ATF pressure switch and solenoid monitor value, and detects as irregular when engine brake of 1st gear acts other than at "1" position.