DTC Detecting Condition and Trouble Area

DTC DETECTING CONDITION

DTC detecting condition	Trouble area
DTC P0974: Difference between command signal and monitor signal of shift solenoid valve - A (shift solenoid valve - A circuit is open or shorted to power supply circuit). (1 driving cycle detection logic) DTC P0977: Difference between command signal and monitor signal of shift solenoid valve - B (shift solenoid valve - B circuit is open or shorted to power supply circuit). (1 driving cycle detection logic)	Shift solenoid valve - A (No. 1) or its circuit malfunction. (P0974) Shift solenoid valve - B (No. 2) or its circuit malfunction. (P0977) TCM

DTC detecting condition

Trouble area

DTC P0974:
Difference between command signal and monitor signal of shift solenoid valve - A (shift solenoid valve - A circuit is open or shorted to power supply circuit).
(1 driving cycle detection logic)
DTC P0977:
Difference between command signal and monitor signal of shift solenoid valve - B (shift solenoid valve - B circuit is open or shorted to power supply circuit).
(1 driving cycle detection logic)

Shift solenoid valve - A (No. 1) or its circuit malfunction. (P0974)
Shift solenoid valve - B (No. 2) or its circuit malfunction. (P0977)
TCM