P0230 on RAM 2500
Factory diagnostic protocol and troubleshooting wire for fault code P0230 specifically for the RAM 2500 (2020–2026, 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP)).
1. Symptoms of P0230 on RAM 2500
When the Engine Control Module (ECM/PCM) on your RAM 2500 (6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP)) logs fault code P0230, drivers commonly observe:
2. Most Likely Causes on RAM 2500
Historical warranty claims and technical repair bulletins for RAM 2500 point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for RAM 2500
Inspect the Fuel Pump fuse in under-hood fuse box. Swap the fuel pump relay with an identical non-critical relay (like the horn relay). on the RAM 2500 equipped with 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP).
Have an assistant turn key to ON while listening at the open fuel filler neck. A healthy pump hums for 2–3 seconds. on the RAM 2500 equipped with 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP).
Check for 12V battery power on pin 30 and 86, and check for PCM ground command on pin 85 when key is turned on. on the RAM 2500 equipped with 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP).
On vehicles with an electronic FPDM (such as Ford F-150s mounted on rear axle), check for corrosion or cracked aluminum housing. on the RAM 2500 equipped with 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP).
If power and ground reach the pump connector but pump does not spin, drop tank or access fuel pump hatch to replace pump assembly. on the RAM 2500 equipped with 6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP).
Equipment for Diagnosing RAM 2500 (P0230)
RAM 2500 OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for RAM 2500.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on RAM 2500
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the RAM 2500:
4. RAM 2500 P0230 FAQs
What causes code P0230 to trigger on a RAM 2500?
On the RAM 2500 (6.7L Cummins Turbo-Diesel I6 (420HP / 1,075 lb-ft) / 6.4L HEMI V8 (410HP)), P0230 is most frequently caused by Blown fuel pump fuse or burnt fuel pump relay or Open or shorted control circuit wiring between PCM and fuel pump relay.
Where is the OBD-II port located on my RAM 2500?
On the RAM 2500, the 16-pin DLC diagnostic connector is located Driver footwell below steering column near parking brake. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my RAM 2500 with code P0230?
No. The engine will crank but not start or will suddenly stall while driving when the fuel pump cuts out. Given that P0230 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.