OBD Guide

P1AB6

Starter/Generator Phase V Current Sensor Circuit High Voltage

P1AB6 is an OBD-II diagnostic trouble code meaning: Starter/Generator Phase V Current Sensor Circuit High Voltage. Common causes: alternator/starter current sensor malfunction, short circuit in the sensor circuit. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Problems starting the engine
  • Unstable generator operation
  • Check Engine Light Is On
  • Reduced battery charging efficiency

Causes

  • Alternator/Starter Current Sensor Malfunction
  • Short circuit in the sensor circuit
  • Wiring harness damage
  • Control unit malfunction
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the contacts in the sensor connectors
  3. Test the current sensor to specifications
  4. Check the control unit for errors
  5. Replace current sensor if necessary

Related codes

FAQ

What does the P1AB6 code mean?

P1AB6 is an OBD-II diagnostic trouble code that indicates: Starter/Generator Phase V Current Sensor Circuit High Voltage

What causes a P1AB6 error code?

The most common causes of P1AB6 include: Alternator/Starter Current Sensor Malfunction; Short circuit in the sensor circuit; Wiring harness damage; Control unit malfunction.

How do I fix a P1AB6 diagnostic trouble code?

To fix P1AB6: Check the integrity of the wiring harness. Check the contacts in the sensor connectors. Test the current sensor to specifications. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1AB6?

Yes, but get it checked soon

How much does it cost to fix P1AB6?

The estimated repair cost for P1AB6 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat