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 MANUALSHONDA2007RIDGELINE RTSREPAIR AND DIAGNOSISDRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESREAR DIFFERENTIALREAR DIFFERENTIAL FUNCTION TEST
2007 Honda Ridgeline RTS
Rear Differential Function Test
2007 Honda Ridgeline RTSSECTION Rear Differential Function Test
NOTE:
Before doing the Differential Function Test, the following conditions must be present.
- No DTCs detected
- Engine is OFF
- The VTM-4 control unit must be initialized
- Connect the HDS to the DLC.
- Turn the ignition switch ON.
- Make sure the HDS communicates with the VTM-4 control unit. If it doesn't go to the DLC circuit troubleshooting (see DTC TROUBLESHOOTING INDEX ).
- Confirm that the temperature of the differential oil is between 68°F (20°C) and 140°F (60°C) with the HDS.
- Turn the ignition switch OFF with the shift lever in P.
- Raise the vehicle so all four wheels are off the ground, and make sure the vehicle is securely supported (see SAFETY STANDS ).
- Remove the rear wheels (see KNUCKLE/HUB REPLACEMENT ).
- Release the parking brake.
- Turn the ignition switch ON (II).
- Select MISCELLANEOUS TEST, then select the LEFT CLUTCH ELECTROMAGNETIC COIL TEST with the HDS, and follow the screen prompts. If the results are NORMAL, the left clutch is OK, go to step 11. If the results are ABNORMAL, replace the rear differential.
- Select MISCELLANEOUS TEST, then select the RIGHT CLUTCH ELECTROMAGNETIC COIL TEST with the HDS, and follow the screen prompts. If the results are NORMAL, the right clutch is OK. If the results are ABNORMAL, replace the rear differential.
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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.