What this code means

Open circuit detected in the intake manifold runner control actuator circuit on bank 1.

Symptoms

• Check engine light
• Reduced performance
• Poor fuel economy

Common causes

• Broken wiring
• Corroded connector
• Failed actuator
• Blown fuse

Diagnostic steps

1. Check fuse and relay
2. Inspect wiring and connector
3. Test actuator resistance
4. Check ECM output

Repair notes

Repair wiring or replace actuator.

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