OBD Guide

P15BA

Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage

P15BA is an OBD-II diagnostic trouble code meaning: Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage. Common causes: compressor control module malfunction, problems with the air conditioning compressor relay. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Air conditioner won't turn on
  • Interruptions in the climate system
  • Check Engine light comes on
  • Noticeable change in engine load when the air conditioner is turned on
  • Extraneous sounds from the compressor area

Causes

  • Compressor control module malfunction
  • Problems with the air conditioning compressor relay
  • Short circuit in wiring
  • Blown fuses
  • Generator fault (overcharging)

How to Fix

  1. Check the voltage in the compressor control circuit
  2. Inspect the wiring harness for damage
  3. Check the condition of the relays and fuses
  4. Test the compressor control module
  5. If necessary, replace faulty components

Related codes

FAQ

What does the P15BA code mean?

P15BA is an OBD-II diagnostic trouble code that indicates: Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage

What causes a P15BA error code?

The most common causes of P15BA include: Compressor control module malfunction; Problems with the air conditioning compressor relay; Short circuit in wiring; Blown fuses.

How do I fix a P15BA diagnostic trouble code?

To fix P15BA: Check the voltage in the compressor control circuit. Inspect the wiring harness for damage. Check the condition of the relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P15BA?

Yes, but get it checked soon

How much does it cost to fix P15BA?

The estimated repair cost for P15BA is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat