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.
Reductant Pump Control Module
The reductant pump control module receives a duty cycle signal from the PCM and controls the reductant pump operation in relation to this duty cycle. The reductant pump control module controls the reductant pump by energizing the pump motor three phase drive circuits at the required speed in the required direction, as commanded by the PCM. The reductant pump control module sends diagnostic information to the PCM.
Typical Reductant Pump Control Module
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.