DTC Detection Logic

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P0779

Pressure control solenoid B Intermittent

When all of the following conditions are satisfied and this state is maintained for 0.2 seconds:

TCM power supply voltage: More than 11 V
P0778 is not detected
TCM judges that solenoid valve circuit is open or shorted to power supply.

Harness or connector
(Secondary pressure solenoid valve circuit open or shorted to power supply)
Secondary pressure solenoid valve