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.
2003 Acura 3.2TL BaseFACTORY OEM SERVICE PROCEDURE
Automatic Transmission Diagnosis
- Special Tools
- General Troubleshooting Information
- Diagnostic Trouble Codes Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- General Operation
- Clutches
- Power Flow
- Electronic Control System
- Hydraulic Controls
- Hydraulic Flow
- Distribution of Hydraulic Pressure
- [N] Position
- [ ] Position: 1st gear shifting from N position
- [ ] Position: Driving in 1st gear
- [ ] Position: Shifting between 1st gear and 2nd gear
- [ ] Position: Driving in 2nd gear
- [ ] Position: Shifting between 2nd gear and 3rd gear
- [ ] Position: Driving in 3rd gear
- [ ] Position: Shifting between 3rd gear and 4th gear
- [ ] Position: Driving in 4th gear
- [ ] Position: Shifting between 4th gear and 5th gear
- [ ] Position: Driving in 5th gear
- [2] Position
- [1] Position
- [R] Position: Shifting to R position from P or N position
- [R] Position: Driving in reverse gear
- Reverse Inhibitor Control
- P Position
- Lock-up System
- Circuit Diagram
- Diagnostic Trouble Codes Troubleshooting
- Notes
- 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
- Road Test
- Stall Speed Test
- Pressure Tests
- Torque Converter Clutch Solenoid Valve Test
- Torque Converter Clutch Solenoid Valve Replacement
- Shift Solenoid Valve B Test
- Shift Solenoid Valve B Replacement
- Shift Solenoid Valves A and C Test
- Shift Solenoid Valves A and C Replacement
- A/T Clutch Pressure Control Solenoid Valves A and B Test
- A/T Clutch Pressure Control Solenoid Valves A and B Replacement
- A/T Clutch Pressure Control Solenoid Valve C Test
- A/T Clutch Pressure Control Solenoid Valve C Replacement
- Speed Sensor Replacement
- 3rd Clutch Pressure Switch Replacement
- 4th Clutch Pressure Switch Replacement
- ATF Temperature Sensor Replacement
- A/T Gear Position Indicator
- Component Location Index
- Circuit Diagram
- [D5] Indicator Circuit Troubleshooting
- Sequential Sportshift Transmission Gear Selection Switch Circuit Troubleshooting
- Sportshift Indicator Circuit Troubleshooting
- Transmission Range Switch Test
- Transmission Range Switch Replacement
- Indicator Input Test
- Indicator Bulb Replacement
Factory Service Tools
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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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