OBD Guide

P0EB9

A/C Compressor Motor Phase W Current Sensor Circuit Low

P0EB9 is an OBD-II diagnostic trouble code meaning: A/C Compressor Motor Phase W Current Sensor Circuit Low. Common causes: open or short circuit in the phase w current sensor circuit, faulty phase w current sensor. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • The air conditioner does not work or does not work correctly
  • Noticeable reduction in cooling efficiency
  • The air conditioning indicator is flashing
  • Increased noise from the compressor
  • Other compressor electrical fault codes may be present.

Causes

  • Open or short circuit in the phase W current sensor circuit
  • Faulty phase W current sensor
  • Problems with connectors or contact corrosion
  • Malfunction of the air conditioning compressor control module
  • Damage to the wiring harness near the compressor

How to Fix

  1. Check the continuity and voltage in the phase W sensor circuit
  2. Inspect connectors and contacts for damage and corrosion
  3. Test the phase W current sensor with a multimeter
  4. If necessary, replace the current sensor or repair the wiring
  5. Check the operation of the compressor control module

Related codes

Error P0EB9 by Vehicle Brand

FAQ

What does the P0EB9 code mean?

P0EB9 is an OBD-II diagnostic trouble code that indicates: A/C Compressor Motor Phase W Current Sensor Circuit Low

What causes a P0EB9 error code?

The most common causes of P0EB9 include: Open or short circuit in the phase W current sensor circuit; Faulty phase W current sensor; Problems with connectors or contact corrosion; Malfunction of the air conditioning compressor control module.

How do I fix a P0EB9 diagnostic trouble code?

To fix P0EB9: Check the continuity and voltage in the phase W sensor circuit. Inspect connectors and contacts for damage and corrosion. Test the phase W current sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0EB9?

Yes, but get it checked soon

How much does it cost to fix P0EB9?

The estimated repair cost for P0EB9 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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