OBD Guide

P1ECC

Battery Charger High-Voltage Converter 1 Temperature Sensor Circuit High Voltage

P1ECC is an OBD-II diagnostic trouble code meaning: Battery Charger High-Voltage Converter 1 Temperature Sensor Circuit High Voltage. Common causes: converter temperature sensor malfunction, damage to wiring or connectors. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced battery charging efficiency
  • Charging power limitation
  • Incorrect temperature readings in diagnostic equipment

Causes

  • Converter temperature sensor malfunction
  • Damage to wiring or connectors
  • Problems with high voltage converter
  • Short circuit in the sensor circuit
  • Problems with the charging system control unit

How to Fix

  1. Check the integrity of the wiring and connectors in the sensor circuit
  2. Check the resistance of the temperature sensor
  3. Check the voltage in the sensor circuit
  4. Replace temperature sensor if necessary
  5. Check the operation of the high voltage converter

Related codes

FAQ

What does the P1ECC code mean?

P1ECC is an OBD-II diagnostic trouble code that indicates: Battery Charger High-Voltage Converter 1 Temperature Sensor Circuit High Voltage

What causes a P1ECC error code?

The most common causes of P1ECC include: Converter temperature sensor malfunction; Damage to wiring or connectors; Problems with high voltage converter; Short circuit in the sensor circuit.

How do I fix a P1ECC diagnostic trouble code?

To fix P1ECC: Check the integrity of the wiring and connectors in the sensor circuit. Check the resistance of the temperature sensor. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1ECC?

Yes, but get it checked soon

How much does it cost to fix P1ECC?

The estimated repair cost for P1ECC is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat