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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSACURA2011RDX 2.3 TB1REPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION
2011 Acura RDX 2.3 TB1
Automatic Transmission
2011 Acura RDX 2.3 TB1SECTION Automatic Transmission
- Special Tools
- General Troubleshooting Information
- How to Check for DTCs with the Honda Diagnostic System (HDS)
- Symptom Troubleshooting Versus DTC Troubleshooting
- How to Check for DTCs with the SCS Mode (retrieving the flash codes)
- How to Troubleshoot Circuits at the PCM Connectors
- Clear A/T DTCs Procedure
- OBD Status
- How to End a Troubleshooting Session (required after any troubleshooting)
- PCM/TCM Reset
- Updating the A/T Software in the PCM
- Replacing the PCM
- Substituting the PCM
- Failure Reproduction Technique
- Self-Diagnosis
- Fail-Safe Function
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- Component Location Index
- System Description
- General Operation
- Clutches and Gears
- Power Flow
- P Position
- N Position
- D Position and S Position with Automatic Shift Mode
- In 1st gear
- In 2nd gear
- In 3rd gear
- In 4th gear
- In 5th gear
- Acceleration in 1st gear in S with sequential sportshift mode, and in D with D-paddle shift mode
- Deceleration in 1st gear in S with sequential sportshift mode, and in D with D-paddle shift mode
- R Position
- Electronic Control System
- Electronic Control
- Functional Diagram
- Shift Control
- Shift Control - Grade Logic Control
- Grade Logic Control: Ascending Control
- Grade Logic Control: Descending Control
- Deceleration Control
- Shift-Hold Control
- Shift Control - Manual Shift Mode
- D-Paddle Shift Mode
- S Position Automatic Shift Mode and Sequential Sportshift Mode
- Clutch Pressure Control
- Lock-Up Control
- Shift Lock Control
- PCM A/T Control System Electrical Connections
- PCM A/T Control System Inputs and Outputs at PCM Connector A β‘ (44P)
- PCM A/T Control System Inputs and Outputs at PCM Connector B Ξ (44P)
- PCM A/T Control System Inputs and Outputs at PCM Connector C β¦ (44P)
- Hydraulic Controls
- Hydraulic Flow
- Distribution of Hydraulic Pressure
- N Position
- Shifting to D and S from N
- Driving in 1st gear in D and S with automatic shift mode
- Shifting between 1st gear and 2nd gear in D and S with automatic shift mode
- Driving in 2nd gear in D and S with automatic shift mode
- Shifting between 2nd gear and 3rd gear in D and S with automatic shift mode
- Driving in 3rd gear in D and S with automatic shift mode
- Shifting between 3rd gear and 4th gear in D and S with automatic shift mode
- Driving in 4th gear in D and S with automatic shift mode
- Shifting between 4th gear and 5th gear in D
- Driving in 5th gear in D
- Driving in 1st gear (engaged with 1st and 1st-hold clutches) in the sequential sportshift mode, and the D-paddle shift mode
- Shifting to R from P or N
- Driving in reverse gear in R
- Reverse Inhibitor Control
- P Position
- Lock-Up System
- DTC Troubleshooting
- DTC P0107: Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
- DTC P0108: Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage
- DTC P0335: Crankshaft Position (CKP) Sensor No Signal
- DTC P0339: Crankshaft Position (CKP) Sensor Circuit Intermittent Interruption
- DTC P0365: Camshaft Position (CMP) Sensor No Signal
- DTC P0369: Camshaft Position (CMP) Sensor Circuit Intermittent Interruption
- DTC P0705: Transmission Range Switch (Multiple Shift - Position Input)
- DTC P0706: Transmission Range Switch (Open)
- DTC P0711: Problem in ATF Temperature Sensor Circuit
- DTC P0712: ATF Temperature Sensor (Short)
- DTC P0713: ATF Temperature Sensor (Open)
- DTC P0714: ATF Temperature Sensor Intermittent Failure
- DTC P0716: Input Shaft (Mainshaft) Speed Sensor (Range/Performance); DTC P0721: Output Shaft (Countershaft) Speed Sensor (Range/Performance)
- DTC P0717: Input Shaft (Mainshaft) Speed Sensor (No Signal Input); DTC P0718: Input Shaft (Mainshaft) Speed Sensor (Intermittent Failure)
- DTC P0722: Output Shaft (Countershaft) Speed Sensor (No Signal Input); DTC P0723: Output Shaft (Countershaft) Speed Sensor (Intermittent Failure)
- DTC P0731: 1st Gear Incorrect Ratio
- DTC P0732: 2nd Gear Incorrect Ratio
- DTC P0733: 3rd Gear Incorrect Ratio
- DTC P0734: 4th Gear Incorrect Ratio
- DTC P0735: 5th Gear Incorrect Ratio
- DTC P0741: Torque Converter Clutch Circuit Performance or Stuck OFF
- DTC P0746: A/T Clutch Pressure Control Solenoid Valve A Stuck OFF; DTC P0747: A/T Clutch Pressure Control Solenoid Valve A Stuck ON
- DTC P0751: Shift Solenoid Valve A Stuck OFF; DTC P0752: Shift Solenoid Valve A Stuck ON
- DTC P0756: Shift Solenoid Valve B Stuck OFF; DTC P0757: Shift Solenoid Valve B Stuck ON
- DTC P0761: Shift Solenoid Valve C Stuck OFF; DTC P0762: Shift Solenoid Valve C Stuck ON
- DTC P0766: Shift Solenoid Valve D Stuck OFF; DTC P0767: Shift Solenoid Valve D Stuck ON
- DTC P0776: A/T Clutch Pressure Control Solenoid Valve B Stuck OFF; DTC P0777: A/T Clutch Pressure Control Solenoid Valve B Stuck ON
- DTC P0796: A/T Clutch Pressure Control Solenoid Valve C Stuck OFF; DTC P0797: A/T Clutch Pressure Control Solenoid Valve C Stuck ON
- DTC P0812: Transmission Range Switch ATP R Switch
- DTC P0842: Transmission Fluid Pressure Switch A (2nd Clutch) Circuit Low
- DTC P0843: Transmission Fluid Pressure Switch A (2nd Clutch) Circuit High
- DTC P0847: Transmission Fluid Pressure Switch B (3rd Clutch) Circuit Low
- DTC P0848: Transmission Fluid Pressure Switch B (3rd Clutch) Circuit High
- DTC P0872: 4th Clutch Transmission Fluid Pressure Switch Circuit Low
- DTC P0873: 4th Clutch Transmission Fluid Pressure Switch Circuit High
- DTC P0962: A/T Clutch Pressure Control Solenoid Valve A (Open or Short)
- DTC P0963: A/T Clutch Pressure Control Solenoid Valve A
- DTC P0966: A/T Clutch Pressure Control Solenoid Valve B (Open or Short)
- DTC P0967: A/T Clutch Pressure Control Solenoid Valve B
- DTC P0970: A/T Clutch Pressure Control Solenoid Valve C (Open or Short)
- DTC P0971: A/T Clutch Pressure Control Solenoid Valve C
- DTC P0973: Shift Solenoid Valve A (Short)
- DTC P0974: Shift Solenoid Valve A (Open)
- DTC P0976: Shift Solenoid Valve B (Short)
- DTC P0977: Shift Solenoid Valve B (Open)
- DTC P0979: Shift Solenoid Valve C (Short)
- DTC P0980: Shift Solenoid Valve C (Open)
- DTC P0982: Shift Solenoid Valve D (Short)
- DTC P0983: Shift Solenoid Valve D (Open)
- DTC P16C0: PCM A/T Control System Incomplete Update
- DTC P1717: Transmission Range Switch ATP RVS Switch (Open or Short)
- DTC P1743: Shift Valve E Stuck OFF; DTC P1744: Shift Valve E Stuck ON
- DTC P1745: Servo Control Valve Stuck OFF or Servo Valve Stuck OFF
- DTC P1780: Shift Control System (Transmission Default Mode)
- DTC P2122: Accelerator Pedal Position (APP) Sensor A (Throttle Position Sensor D) Circuit Low Voltage
- DTC P2123: Accelerator Pedal Position (APP) Sensor A (Throttle Position Sensor D) Circuit High Voltage
- DTC U0028: F-CAN Malfunction (PCM receiving failure)
- DTC U0122: F-CAN Malfunction (PCM - VSA Modulator-Control Unit)
- DTC U0155: F-CAN Malfunction (PCM - Gauge Control Module)
- Road Test
- Stall Speed Test
- Pressure Test
- Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement
- A/T Clutch Pressure Control Solenoid Valve A and B Test
- A/T Clutch Pressure Control Solenoid Valve A and B Replacement
- A/T Clutch Pressure Control Solenoid Valve C Test
- A/T Clutch Pressure Control Solenoid Valve C Replacement
- Input Shaft (Mainshaft) Speed Sensor Replacement
- Transmission Fluid Pressure Switch A (2nd Clutch) Replacement
- Transmission Fluid Pressure Switch B (3rd Clutch) Replacement
- 4th Clutch Transmission Fluid Pressure Switch Replacement
- ATF Temperature Sensor Replacement
- ATF Level Check
- ATF Replacement
- Transfer Assembly Fluid Replacement
- Transfer Assembly Inspection
- Transfer Assembly Removal
- Transfer Assembly Installation
- Transfer Breather Hose Replacement
- Transmission Removal
- Drive Plate Removal and Installation
- Transmission Installation
- ATF Cooler Cleaning
- ATF Cooler Hose Replacement
- ATF Cooler Replacement
- Shift Lever Removal
- Shift Lever Installation
- Shift Lever Disassembly/Reassembly
- Shift Lever/Shift Cable Bracket Assembly Replacement
- Shift Lever Knob, Shift Lever Knob Cover, and Shift Lever Button Ring Replacement
- Shift Lever Boot and A/T Gear Position Indicator Panel Replacement
- Shift Cable Replacement
- Shift Cable Adjustment
- Circuit Diagram
- Transmission Range Switch Test
- Transmission Range Switch Replacement
- Paddle Shifter + (Upshift Switch) Circuit Troubleshooting
- Paddle Shifter - (Downshift Switch) Circuit Troubleshooting
- Paddle Shifter + (Upshift Switch) or Paddle Shifter - (Downshift Switch) Replacement
- Shift Lock System Circuit Troubleshooting
- Shift Lock Solenoid Test
- Shift Lock Solenoid Replacement
- Shift Lock Stop/Shift Lock Stop Cushion Replacement
- Shift Lock Release and Release Spring Replacement
- Park Pin Switch Replacement
- Transmission Disassembly
- Reverse Idler Gear Removal/Installation
- Reverse Idler Gear Disassembly/Inspection/Reassembly
- Secondary Shaft ATF Feed Pipe Cap Removal
- Secondary Shaft ATF Feed Pipe Cap Installation
- Secondary Shaft ATF Feed Pipe Cap, Feed Pipe Replacement
- ATF Filter Removal/Inspection/Installation
- Mainshaft Bearing Removal
- Mainshaft Bearing Installation
- Intermediary Shaft Bearing Replacement
- Park Lever Shaft Bearing Replacement
- Selector Control Shaft Bearing Replacement
- Selector Control Shaft Oil Seal Replacement
- Valve Body Repair
- Valve Body Valve Installation
- Main Valve Body Disassembly, Inspection, and Reassembly
- ATF Pump Inspection
- Secondary Valve Body Disassembly, Inspection, and Reassembly
- Regulator Valve Body Disassembly, Inspection, and Reassembly
- Accumulator Body Disassembly, Inspection, and Reassembly
- Shift Solenoid Valve Removal and Installation
- Mainshaft Bearing and Oil Seal Replacement
- Countershaft Bearing Replacement
- Secondary Shaft Bearing Replacement
- Mainshaft Disassembly, Inspection, and Reassembly
- Mainshaft 4th Gear Replacement
- Countershaft Disassembly
- Countershaft Idler Gear and 4th Gear Axial Clearance Inspection
- Countershaft Reassembly
- Secondary Shaft Disassembly
- Secondary Shaft 1st Gear Axial Clearance Inspection
- 1st Gear One-Way Clutch Inspection
- 1st Clutch Hub Replacement
- Secondary Shaft Reassembly
- Secondary Shaft installation Height Inspection/Adjustment
- Intermediary Shaft Disassembly, Inspection, and Reassembly
- Intermediary Shaft 4th Gear Removal
- Intermediary Shaft 4th Gear Installation
- Intermediary Shaft 3rd Gear Axial Clearance Inspection
- Intermediary Shaft Installation Height Inspection/Adjustment
- Clutch Disassembly
- Clutch Inspection
- Clutch Wave-Plate Phase Difference Inspection
- Clutch Clearance Inspection
- Clutch Reassembly
- Transmission Reassembly
- Backlash Inspection
- Differential Carrier, Final Driven Gear, and Transfer Drive Gear Replacement
- Differential Carrier and Final Driven Gear Replacement
- Carrier Bearing Replacement
- Oil Seal Replacement
- Carrier Bearing Outer Race Replacement
- Carrier Bearing Preload Inspection
- Transfer Output Shaft Bearing Replacement
- Transmission Housing Bearing Replacement
- Transfer Output Shaft Installation Height Inspection/Adjustment
- Inspection
- Disassembly
- Transfer Hypoid Drive Gear Bearing Replacement
- Transfer Output Shaft (Hypoid Gear) Bearing Removal/Installation
- Transfer Housing Tapered Roller Bearing Outer Race Replacement
- Transfer Cover Tapered Roller Bearing Outer Race Removal/Installation
- Transfer Cover Oil Seal Replacement
- Reassembly
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.