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 MANUALSACURA2015RDX AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESDIFFERENTIAL - TESTING & TROUBLESHOOTING
2015 Acura RDX AWD
Differential - Testing & Troubleshooting
2015 Acura RDX AWDSECTION Differential - Testing & Troubleshooting
- Description
- DTC Troubleshooting Index
- Symptom Troubleshooting
- AWD System Symptom Troubleshooting - AWD system indicator does not come on (AWD) (2013-15)
- AWD System Symptom Troubleshooting - AWD system indicator does not come on (AWD) (2016-18)
- AWD System Symptom Troubleshooting - AWD system indicator does not go off, and no DTCs are stored (AWD) (2013-18)
- AWD System Symptom Troubleshooting - AWD system is stuck in 4WD mode (AWD) (2013-18)
- AWD System Symptom Troubleshooting - Abnormal noise (AWD) (2013-18)
- AWD System Symptom Troubleshooting - HDS does not communicate (AWD) (2013-15)
- AWD System Symptom Troubleshooting - HDS does not communicate (AWD) (2016-18)
- AWD System Symptom Troubleshooting - Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD) (2013-18)
- AWD system indicator does not come on (AWD) (2013)
- AWD system indicator does not come on (AWD) (2014-18)
- AWD system indicator does not go off, and no DTCs are stored (AWD) (2013)
- AWD system indicator does not go off, and no DTCs are stored (AWD) (2014-18)
- AWD system is stuck in 4WD mode (AWD) (2013)
- AWD system is stuck in 4WD mode (AWD) (2014-18)
- AWD with Intelligent Control System Symptom Troubleshooting Index (AWD) (2013-18)
- Abnormal noise (at accelerate) (AWD) (2013)
- Abnormal noise (at accelerate) (AWD) (2014-18)
- Abnormal noise (at normal condition) (AWD) (2013)
- Abnormal noise (at normal condition) (AWD) (2014-18)
- Abnormal noise (at start) (AWD) (2013)
- Abnormal noise (at start) (AWD) (2014-18)
- Abnormal noise (at turning and accelerate) (AWD) (2013)
- Abnormal noise (at turning and accelerate) (AWD) (2014-18)
- Abnormal noise (at turning) (AWD) (2013)
- Abnormal noise (at turning) (AWD) (2014-18)
- HDS does not communicate with AWD control unit (AWD) (2013)
- HDS does not communicate with AWD control unit (AWD) (2014 -18)
- HDS does not communicate with vehicle (AWD) (2013-18)
- Rear differential leaks fluid (AWD) (2013)
- Rear differential leaks fluid (AWD) (2014-18)
- Rear differential overheats (AWD) (2013)
- Rear differential overheats (AWD) (2014-18)
- Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD) (2013)
- Will not go into 4WD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD) (2014-18)
- How to Information
- Component Location Index
- Circuit Diagram
- Testing
- AWD Control Unit Initialization (AWD) (2013-18)
- AWD Control Unit Update (AWD) (2013-18)
- Longitudinal Acceleration Sensor Learn (AWD) (2013-18)
- Rear Differential Clutch Test (AWD) (2013-18)
- Rear Differential Fluid Pressure Sensor Test (AWD) (2013-18)
- Rear Differential Pressure Test (AWD) (2013-18)
- Rear Differential Solenoid Valve Test (AWD) (2013-18)
- AWD Service
- AWD Control Unit Connector for Inputs and Outputs (AWD) (2013-15)
- AWD Control Unit Connector for Inputs and Outputs (AWD) (2016-18)
- AWD System Bleeding (2013-18)
- Rear Differential Disassembly and Reassembly (AWD) (2013-15)
- Rear Differential Disassembly and Reassembly (AWD) (2016-18)
- Rear Differential Fluid Inspection and Replacement (AWD) (2013-18)
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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.