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.
2012 Honda Ridgeline V6-3.5LFACTORY OEM SERVICE PROCEDURE
Power Distribution Module: Testing and Inspection
Relay Control Module Input Test
NOTE: Check the No. 22 (120 A), No. 23 (60 A), No. 15 (40 A) fuse in the under-hood fuse/relay box before testing.
1. Before troubleshooting the multiplex integrated control system, do B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.
2. Turn the ignition switch to LOCK (0).
3. Check the No. 7 (7.5 A) fuse in the under-hood fuse/relay box.
4. Remove the under-hood fuse/relay box under cover.
5. Disconnect under-hood fuse/relay box connector J (10P).
6. Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 7.
7. Reconnect the connector to the under-hood fuse/relay box, and do the following input tests:
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the relay control module must be faulty, replace the under-hood fuse/relay box Under-Hood Fuse/Relay Box Removal And Installation.
Factory Service Tools
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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.