P0660 Intake Manifold Tuning Valve Control Circuit Open Bank 1

Definition: The P0660 code indicates that the Powertrain Control Module (PCM) has detected an open circuit in the intake manifold tuning valve control circuit for bank 1.

p0660 – Intake Manifold Tuning Valve Control Circuit Open Bank 1

Typical Severity: Moderate

Common Causes

p0660 – Intake Manifold Tuning Valve Control Circuit Open Bank 1

Common causes:

• Faulty intake manifold tuning valve
• Open or short circuit in the wiring harness
• Poor electrical connection at the intake manifold tuning valve
• Corrosion or damage in the connectors related to the intake manifold tuning valve circuit
• Defective PCM (Powertrain Control Module)

 

Common Misdiagnosis

OBD2 Code: P0660

Description: Intake Manifold Tuning Valve Control Circuit Open Bank 1

Common Misdiagnosis: Replacing the intake manifold tuning valve without checking for wiring issues or a faulty control module.

 

Common Diagnostic Steps

OBD2 Code: P0660

Description: Intake Manifold Tuning Valve Control Circuit Open Bank 1

• Check for any additional codes that may be present and address those first.
• Inspect the intake manifold tuning valve and its wiring harness for visible damage or disconnection.
• Test the voltage at the intake manifold tuning valve connector using a multimeter to ensure proper power supply.
• Verify the ground connection of the intake manifold tuning valve circuit.
• Use an OBD2 scanner to activate the intake manifold tuning valve and listen for operation or check with a scan tool if applicable.
• If necessary, replace the intake manifold tuning valve if it is found to be faulty after testing.
• Clear the code and test drive the vehicle to see if it returns, indicating successful repair or further issues.