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.
DTC P1500/17908 - Fuel Pump Relay Circuit ELEC Malfunction
Check fuel pump relay and relay triggering. See SYSTEM/COMPONENT TESTS article. If fuel pump relay and relay triggering are okay, replace faulty PCM. Code new PCM and test drive vehicle. See PCM CODING and TEST DRIVE in this article. Recheck DTC memory and verify DTC does not set again. If DTC sets again, perform testing procedure again.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.