OBD Guide

P0CA0

14 Volt Power Module Current Sensor B Circuit Intermittent

P0CA0 is an OBD-II diagnostic trouble code meaning: 14 Volt Power Module Current Sensor B Circuit Intermittent. Common causes: poor contact in the current sensor connector, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

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

Symptoms

  • Unstable operation of electrical equipment
  • Check engine light comes on
  • Battery charging problems
  • Reduced hybrid system performance (if applicable)

Causes

  • Poor contact in the current sensor connector
  • Open or short circuit in the sensor circuit
  • Current sensor B fault
  • Problems with the 14V power module
  • Corroded contacts or damaged wiring harness

How to Fix

  1. Check connections and connectors of the current sensor
  2. Test sensor circuit integrity
  3. Check the functionality of current sensor B
  4. Diagnose the 14V power module
  5. If necessary, replace the sensor or module

Related codes

Error P0CA0 by Vehicle Brand

FAQ

What does the P0CA0 code mean?

P0CA0 is an OBD-II diagnostic trouble code that indicates: 14 Volt Power Module Current Sensor B Circuit Intermittent

What causes a P0CA0 error code?

The most common causes of P0CA0 include: Poor contact in the current sensor connector; Open or short circuit in the sensor circuit; Current sensor B fault; Problems with the 14V power module.

How do I fix a P0CA0 diagnostic trouble code?

To fix P0CA0: Check connections and connectors of the current sensor. Test sensor circuit integrity. Check the functionality of current sensor B. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0CA0?

Yes, but get it checked soon

How much does it cost to fix P0CA0?

The estimated repair cost for P0CA0 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat