Error code

OBD2 P0660

OBD2P0660
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Intake Manifold Tuning Valve Control Circuit/Open.

Severity

moderateCan drive, but performance issues may worsen over time.

Summary

P0660 indicates an open circuit in the intake manifold air control (IMAC) solenoid for bank 1 of the engine.

Symptoms

  • Reduction in engine performance, especially at low RPM levels
  • Diminished fuel efficiency

Common Causes

  • Defective IMAC actuator solenoid
  • Loose or binding intake manifold runners
  • Bad intake manifold runner position sensor
  • Open or shorted wiring in the IMAC solenoid control circuit
  • Faulty MAP Sensor
  • Corroded IMAC solenoid connector

Diagnosis

  1. Retrieve all stored codes and freeze frame data using a diagnostic scanner.
  2. Perform a visual inspection of related wiring and connectors.
  3. Test voltage and ground circuits at the IMAC solenoid connector and PCM connector.
  4. Check system relays and fuses, replacing as necessary.

Fixes

  • Replace defective IMAC actuator solenoid or repair damaged wiring/connectors.

FAQ

What does P0660 mean?

P0660 indicates an open circuit in the intake manifold air control (IMAC) solenoid for bank 1 of the engine.

How do I fix P0660?

Fixes include replacing a defective IMAC actuator solenoid or repairing damaged wiring/connectors.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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