P1520 Intake Manifold Runner Control Circuit Fault
What does P1520 mean on a Ford?
P1520 — Intake Manifold Runner Control Circuit Fault. This Ford-enhanced code applies to Mustang, Taurus SHO, Escape, Focus with IMRC.
Common causes of P1520
- Open or shorted IMRC control circuit
- Failed IMRC actuator motor
- Blown IMRC fuse
- Corroded actuator connector
- PCM driver fault
How to fix P1520
- Check the IMRC fuse and supply voltage
- Measure actuator motor resistance
- Command the runners and verify current draw
- Inspect wiring and connector
- Replace the actuator after confirming power and command