Set Condition

When the secondary pressure goes down gradually below a predetermined value during a drive cycle. The DTC could be due to the failure of the secondary pressure control system, secondary pressure solenoid performance or line pressure solenoid. There are two possible setting conditions to set this DTC.

Condition one:  Target secondary pressure minus the measured secondary pressure is greater than 0.25 MPa (36 psi) for two consecutive instances of a problem identification for the period of 1.5 seconds within a 30 second interval.

Condition two:  Target secondary pressure minus the measured secondary pressure is greater than 2.0 MPa (291 psi) for the period of 800 msec.