P0666 — ECM/PCM/TCM Internal Temperature Sensor Circuit

Powertrain (engine/transmission)

ECM/PCM/TCM Internal Temperature Sensor Circuit

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Can I drive with P0666?

You can usually drive home and book an inspection within a few days.

Frequently asked questions

What does fault code P0666 mean?

P0666 means ECM/PCM/TCM Internal Temperature Sensor Circuit.

Can I keep driving with P0666?

You can usually drive home and book an inspection within a few days.

Related fault codes

• P0660 — Intake Manifold Tuning Valve Control Circuit/Open (Bank 1)
• P0661 — Intake Manifold Tuning Valve Control Circuit Low (Bank 1)
• P0662 — Intake Manifold Tuning Valve Control Circuit High (Bank 1)
• P0663 — Intake Manifold Tuning Valve Control Circuit/Open (Bank 2)
• P0664 — Intake Manifold Tuning Valve Control Circuit Low (Bank 2)
• P0665 — Intake Manifold Tuning Valve Control Circuit High (Bank 2)
• P0667 — ECM/PCM/TCM Internal Temperature Sensor Range/Performance
• P0668 — ECM/PCM/TCM Internal Temperature Sensor Circuit Low
• P0669 — ECM/PCM/TCM Internal Temperature Sensor Circuit High

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