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.
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HOMESERVICE MANUALSACURA2008RLREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESREAR DIFFERENTIAL
2008 Acura RL
Rear Differential
2008 Acura RLSECTION Rear Differential
- Special Tools
- Component Location Index
- General Troubleshooting Information
- SH-AWD Indicator
- Diagnostic Trouble Code (DTC)
- Self-diagnosis
- How to Check for Diagnostic Trouble Codes (DTCs)
- How to Troubleshoot Circuits at the SH-AWD Control Unit
- Updating the SH-AWD Control Unit
- SH-AWD Differential Clutch Torque Memorization
- Steering Angle Neutral Position Memorization
- Yaw Rate-Lateral/Longitudinal Acceleration Neutral Position Memorization
- SH-AWD Control Unit Initialization
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Circuit Diagram
- DTC Troubleshooting
- DTC 12-1,12-2,12-3: Lateral/Longitudinal Acceleration Sensor Malfunction
- DTC 14-1,14-2: Lateral/Longitudinal Acceleration Sensor Neutral Position
- DTC 16-1: Steering Angle Sensor Signal
- DTC 19-1: Steering Angle Sensor (Open)
- DTC 19-2: Steering Angle Sensor (Short)
- DTC 19-3: Steering Angle Sensor Malfunction
- DTC 19-4: Steering Angle Sensor Circuit
- DTC 27-1: Hypoid Gear Speed Sensor (Open or Short)
- DTC 27-2: Hypoid Gear Speed Sensor Malfunction
- DTC 33-1, 33-2, 33-3: Yaw Rate Sensor Malfunction
- DTC 35-1, 35-2: Yaw Rate Sensor Neutral Position
- DTC 41-1: Loss of Communication with PCM
- DTC 41-2: Loss of Communication with VSA Control Unit
- DTC 41-3: Loss of Communication with Gauge Assembly
- DTC 42-1: Differential Oil Temperature Sensor (Open)
- DTC 42-2: Differential Oil Temperature Sensor (Short)
- DTC 43-1: Differential Oil Temperature Sensor Circuit
- DTC 44-11: SH-AWD Control Unit
- DTC 44-12: SH-AWD Relay Stuck ON
- DTC 44-21: SH-AWD Control Unit
- DTC 44-31: SH-AWD Relay Stuck OFF
- DTC 44-32: SH-AWD Control Unit Power Supply Stuck ON
- DTC 44-41: SH-AWD Control Unit Power Supply Stuck OFF
- DTC 44-50: SH-AWD Control Unit Power Supply Voltage Low
- DTC 46-1: SH-AWD Control Unit Internal Power Supply Circuit (Open or Short)
- DTC 52-3: Left Clutch Electromagnetic Coil Current Malfunction
- DTC 53-1: Left Clutch Electromagnetic Coil (Open)
- DTC 53-2: Left Clutch Electromagnetic Coil (Short)
- DTC 53-3: Left Clutch Electromagnetic Coil (Open)
- DTC 53-4: Left Clutch Electromagnetic Coil (Short)
- DTC 56-3: Right Clutch Electromagnetic Coil Current Malfunction
- DTC 57-1: Right Clutch Electromagnetic Coil (Open)
- DTC 57-2: Right Clutch Electromagnetic Coil (Short)
- DTC 57-3: Right Clutch Electromagnetic Coil (Open)
- DTC 57-4: Right Clutch Electromagnetic Coil (Short)
- DTC 59-1: SH-AWD Control Unit Power Supply Monitor Circuit
- DTC 61-1: Shift Solenoid Valve (Open)
- DTC 61-2: Shift Solenoid Valve (Short)
- DTC 74-1: One Way Clutch Malfunction
- DTC 75-1: Acceleration Device Malfunction (Stuck OFF)
- DTC 75-2: Acceleration Device Malfunction (Stuck ON)
- DTC 76-1: Rear Differential Fluid Overheats
- DTC 78-xx (78-3 to 78-23): SH-AWD Control Unit Self-Diagnostic Malfunction
- DTC 81-1: Left Search Coil Sensor Malfunction
- DTC 81-2: Left Search Coil Sensor (Open or Short)
- DTC 81-3: Left Clutch Electromagnetic Coil Magnetic Flux Characteristic
- DTC 82-1: Right Search Coil Sensor Malfunction
- DTC 82-2: Right Search Coil Sensor (Open or Short)
- DTC 82-3: Right Search Coil Sensor Magnetic Flux Characteristic
- Symptom Troubleshooting
- SH-AWD Function Test
- Rear Differential Fluid Inspection and Replacement
- Rear Differential Fluid Temperature Sensor Replacement
- Hypoid Gear Speed Sensor Replacement
- SH-AWD Control Unit Replacement
- SH-AWD Relay Replacement
- Rear Differential Mount Replacement
- Rear Differential Removal
- Rear Differential Installation
- Rear Differential Disassembly/Reassembly
- Front Case Oil Seal Replacement
- Center Case Front Oil Seal Replacement
- Side Case Oil Seal Replacement
- Center Case Side Oil Seal Replacement
- Center Case Replacement
- Side Case Replacement
RENDER: 1.0x
NO RELATED
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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.