What does P1520 mean on a Ford?

P1520. Intake Manifold Runner Control Circuit Fault. Applies to Mustang, Taurus SHO, Escape, Focus with IMRC.

What causes P1520 on a Ford?

Open or shorted IMRC control circuit Failed IMRC actuator motor Blown IMRC fuse Corroded actuator connector PCM driver fault

How do I fix P1520 on a Ford?

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

Code

P1520

Intake Manifold Runner Control Circuit Fault

Category: Powertrain - Computer and Auxiliary Controls
Severity: Check Engine Light
Applies to: Mustang, Taurus SHO, Escape, Focus with IMRC
Related: P2006 Intake Manifold Runner Control Stuck Closed Bank 1 on OBD Codes List

Findings, check these first

Open or shorted IMRC control circuit
Failed IMRC actuator motor
Blown IMRC fuse
Corroded actuator connector
PCM driver fault

Standard procedure

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

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: qualified. Read the source limits below.

OBDII.pro: P1520 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1520: Intake Manifold Runner Control Circuit Malfunction
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

Last updated 2026-09-04.

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