OBD Guide

P1ABA

Starter/Generator Field Coil Current Sensor Circuit High Voltage

P1ABA is an OBD-II diagnostic trouble code meaning: Starter/Generator Field Coil Current Sensor Circuit High Voltage. Common causes: winding current sensor malfunction, 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

  • Difficulty starting the engine
  • Check Engine Light Is On
  • Reduced efficiency of regenerative braking
  • Unstable operation of the start-stop system
  • Generator power reduction

Causes

  • Winding current sensor malfunction
  • Open or short circuit in the sensor circuit
  • Connection problems or contact corrosion
  • Malfunction of the starter-generator control module
  • Wiring harness damage

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the connections and contacts of the sensor
  3. Test the winding current sensor
  4. Check the operation of the control module
  5. Replace winding current sensor if necessary

Related codes

FAQ

What does the P1ABA code mean?

P1ABA is an OBD-II diagnostic trouble code that indicates: Starter/Generator Field Coil Current Sensor Circuit High Voltage

What causes a P1ABA error code?

The most common causes of P1ABA include: Winding current sensor malfunction; Open or short circuit in the sensor circuit; Connection problems or contact corrosion; Malfunction of the starter-generator control module.

How do I fix a P1ABA diagnostic trouble code?

To fix P1ABA: Check the integrity of the sensor circuit. Check the connections and contacts of the sensor. Test the winding current sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1ABA?

Yes, but get it checked soon

How much does it cost to fix P1ABA?

The estimated repair cost for P1ABA is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat