Ram 1500: Common Problems, Fault Codes & Repairs Everything for the Ram 1500 in one place — its common problems and reliability, the fault codes owners see most, and the tools to diagnose them. Common problems & reliability Ram 1500 — Common problems & reliability Ram 1500 fault codes Ram 1500 P0171Ram 1500 P0300Ram 1500 P0401Ram 1500 P0420Ram 1500 P0455 Ram 1500 specs & capacities Ram 1500 — Fuse box location & guideRam 1500 — Oil capacity & typeRam 1500 — Tire pressureRam 1500 — Towing capacityRam 1500 — Bolt pattern & wheel sizes Recommended tools Automotive MultimeterCompression TesterBattery & Charging System Tester Read your code: OBD-II scanners →