Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Automatic Transmission DTCS
Retrieval of some diagnostic codes may require the use of special OEM tester or flash method using instrument cluster indicator. For procedures/testing of codes not shown below, refer to appropriate system article. AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION DTC Description DTC P0710 A Problem in ATF Temperature Sensor Circuit DTC P0715 A Problem in Mainshaft Speed Sensor Circuit DTC P0720 A Problem in Countershaft Speed Sensor Circuit DTC P0730 Problem in Shift Control System DTC P0740 Problem in Lock-up Control System DTC P0743 (Premium), P1753 (Type S) Problem in Torque Converter Clutch Solenoid Valve Circuit DTC P0748 (Premium), P1768 (Type S) Problem in A/T Clutch Pressure Control Solenoid Valve A Circuit DTC P0753 Problem in Shift Solenoid Valve A Circuit DTC P0758 Problem in Shift Solenoid Valve B Circuit DTC P0763 Problem in Shift Solenoid Valve C Circuit DTC P0778 (Premium), P1773 (Type S) Problem in A/T Clutch Pressure Control Solenoid Valve B Circuit DTC P0780 Mechanical Problem In Hydraulic Control System Of Shift Solenoid Valve A & A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System DTC P0798 (Premium), P1778 (Type S) Problem in A/T Clutch Pressure Control Solenoid Valve C Circuit DTC P0845 (Premium), P1739 (Type S) Problem in 3rd Clutch Pressure Switch Circuit DTC P1656 Problem in PCM-To-VSA Control Unit Communications Circuit (Type S only) DTC P1705 Short in Transmission Range Switch Circuit DTC P1706 Open in Transmission Range Switch Circuit DTC P1709 Problem in Transmission Gear Selection Switch Circuit DTC P1710 Problem in 1st-hold Switch Circuit DTC P1740 Problem in 4th Clutch Pressure Switch Circuit DTC P1750 Mechanical Problem In Hydraulic Control System Of A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System DTC P1751 Mechanical Problem In Hydraulic Control System Of Shift Solenoid Valve B & A/T Clutch Pressure Control Solenoid Valves A & B, Or Problem In Hydraulic Control System
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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