P0686 — ECM/PCM Power Relay Control Circuit Low

Powertrain (engine/transmission)

ECM/PCM Power Relay Control Circuit Low

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Can I drive with P0686?

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

Frequently asked questions

What does fault code P0686 mean?

P0686 means ECM/PCM Power Relay Control Circuit Low.

Can I keep driving with P0686?

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

Related fault codes

• P0680 — Cylinder 10 Glow Plug Circuit
• P0681 — Cylinder 11 Glow Plug Circuit
• P0682 — Cylinder 12 Glow Plug Circuit
• P0683 — Glow Plug Control Module to PCM Communication Circuit
• P0684 — Glow Plug Control Module to PCM Communication Circuit Range/Performance
• P0685 — ECM/PCM Power Relay Control Circuit /Open
• P0687 — ECM/PCM Power Relay Control Circuit High
• P0688 — ECM/PCM Power Relay Sense Circuit /Open
• P0689 — ECM/PCM Power Relay Sense Circuit Low

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