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.
HDS Method
2007 Honda Ridgeline RTSSECTION HDS Method
- With the ignition switch OFF, connect the HDS to the 16P DLC (A) located behind the driver's dashboard lower cover.
- Make sure the HDS communicates with the VTM-4 control unit. If it doesn't go to the DLC circuit troubleshooting (see DTC TROUBLESHOOTING ).
- Turn the ignition switch ON (II), and follow the prompts on the HDS to display the DTC(s) on the screen. After determining the DTC(s), refer to the DTC TROUBLESHOOTING .NOTE: See the HDS user's manual for specific instruction.
- If there are fuel and emissions DTCs, A/T DTCs, or VSA DTCs at the same time, troubleshoot the fuel and emissions DTCs first, then A/T DTCs second, then VSA third, and then VTM-4 last.
- After recording the DTCs, clear all DTCs.
- Test-drive the vehicle for several minutes in 4WD mode, and check for DTCs. If the DTC returns, refer to the DTC TROUBLESHOOTING . If the DTC does not return, there was an intermittent problem within the circuit. Make sure all connectors and terminals in the circuit are tight.
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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.