P2672 moderate

Actuator Supply Voltage 'A' Circuit High

The P2672 code means the vehicle's onboard diagnostic system has detected: Actuator Supply Voltage 'A' Circuit High. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
moderate
Estimated cost
$150 - $600 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • Sensor readings may be higher than actual values
  • Engine management system recalibrating frequently
  • Possible overcharging condition
  • Erratic engine behavior

Probable Causes (Ranked by Likelihood)

  • Overcharging alternator Very High
  • Short to battery voltage in actuator supply wiring High
  • Failed voltage regulator in alternator Moderate
  • PCM voltage regulation fault Low

Step-by-Step Diagnostic Procedure

  1. Read freeze frame data and confirm P2672 is stored

  2. Test alternator voltage output under load

  3. Measure actuator supply voltage at PCM and sensors

  4. Check for shorts to battery voltage in supply wiring

Frequently Asked Questions

What does P2672 mean?

P2672 indicates an issue with the actuator supply voltage 'a' circuit high. This voltage circuit powers various engine actuators and sensors critical for proper engine operation.

Can I drive with a P2672 code?

You can drive short distances, but multiple engine systems may be affected. Have the charging and wiring systems checked promptly.

How much does it cost to fix P2672?

Repairs typically cost $150 - $600. A blown fuse is a quick fix, while alternator or wiring repairs cost more.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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