DTC P0765-7F: Shift Solenoid "D" Actuator Stuck Off; DTC P0775-7F: Pressure Control Solenoid "B" Actuator Stuck Off [11/2017 - 11/2019]: Description

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The ECM uses signals from the transmission revolution sensor (SP2) and transmission revolution sensor (NT) to detect the actual gear position (1st, 2nd, 3rd, 4th, 5th or 6th gear).

Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, transmission valve body assembly or automatic transmission with transfer assembly (clutch, brake, gear, etc.).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P0765-7F	Shift Solenoid "D" Actuator Stuck Off	All of the following conditions are met (2-trip detection logic): Engine coolant temperature is 40°C (104°F) or higher. The vehicle is driven with the shift lever in D. No malfunctions are detected in shift solenoid valve S1, S2, S3, S4, SR, SL1 and SL2, transmission revolution sensors (NT and SP2), engine coolant temperature sensor, knock control sensor, electronic throttle. Both of the following conditions are met for 0.4 seconds or more*: When the ECM commands the transmission to shift to 5th gear, the actual gear is shifted to 4th. When the ECM commands the transmission to shift to 6th gear, the actual gear is shifted to 4th.	Shift solenoid valve S4 remains closed Shift solenoid valve SLT remains open or closed Transmission valve body assembly is blocked (Brake control valve) Automatic transmission with transfer assembly (clutch, brake, gear, etc.)	Comes on	DTC stored	SAE Code: P0766
P0775-7F	Pressure Control Solenoid "B" Actuator Stuck Off	All of the following conditions are met (2-trip detection logic): Engine coolant temperature is 40°C (104°F) or higher. The vehicle is driven with the shift lever in D. No malfunctions are detected in shift solenoid valve S1, S2, S3, S4, SR, SL1 and SL2, transmission revolution sensors (NT and SP2), engine coolant temperature sensor, knock control sensor, electronic throttle. Both of the following conditions are met for 0.4 seconds or more*: When the ECM commands the transmission to shift to 5th gear, the actual gear is shifted to 4th. When the ECM commands the transmission to shift to 6th gear, the actual gear is shifted to 4th.	Shift solenoid valve SL2 remains open Shift solenoid valve SLT remains open or closed Transmission valve body assembly is blocked (Brake control valve) Automatic transmission with transfer assembly (clutch, brake, gear, etc.)	Comes on	DTC stored	SAE Code: P0776

HINT:

Gear positions in the event of a shift solenoid valve mechanical problem:

ECM command gearshift	1st	2nd	3rd	4th	5th	6th
*: Actual gear position under malfunction	1st	2nd	3rd	4th	4th	4th

Gear position during fail-safe operation:

If any malfunction is detected, the ECM changes into the fail-safe mode to shift into the gear positions as shown in the table below.

Gear position under normal conditions	1st	2nd	3rd	4th	5th	6th
*: Actual gear position under fail-safe mode	1st	2nd	3rd	3rd	3rd	3rd