OBD Guide
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P15A8

W Phase Motor Current Sensor Circuit Malfunction

P15A8 is an OBD-II diagnostic trouble code meaning: W Phase Motor Current Sensor Circuit Malfunction. Common causes: open or short circuit in the sensor circuit, current sensor fault. Estimated repair cost: $22–89.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–89 (est.)

Symptoms

  • Incorrect engine operation
  • Check Engine Light Illuminates
  • Reduced engine power
  • Complete engine shutdown possible

Causes

  • Open or short circuit in the sensor circuit
  • Current sensor fault
  • Problems with the control unit
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check connectors for oxidation or damage
  3. Test the current sensor
  4. Replace sensor if necessary
  5. Check the control unit for errors

Related codes

P15A7P15A9P15AA

FAQ

What does the P15A8 code mean?

P15A8 is an OBD-II diagnostic trouble code that indicates: W Phase Motor Current Sensor Circuit Malfunction

What causes a P15A8 error code?

The most common causes of P15A8 include: Open or short circuit in the sensor circuit; Current sensor fault; Problems with the control unit; Poor contact in connectors.

How do I fix a P15A8 diagnostic trouble code?

To fix P15A8: Check the integrity of the sensor circuit. Check connectors for oxidation or damage. Test the current sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P15A8?

Do not drive — repair immediately

How much does it cost to fix P15A8?

The estimated repair cost for P15A8 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat