OBD Guide

P1F01

Battery Charger Control Module Supply Voltage Sensor Circuit Low Voltage

P1F01 is an OBD-II diagnostic trouble code meaning: Battery Charger Control Module Supply Voltage Sensor Circuit Low Voltage. Common causes: open or short circuit in the sensor circuit, poor contact in the control module connectors. Estimated repair cost: $17–111.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–111 (est.)

Symptoms

  • Malfunction warning on the dashboard
  • Battery charging problems
  • Reduced performance of the hybrid system
  • Possible problems starting the engine

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the control module connectors
  • Voltage sensor fault
  • Problems with the charger control module itself
  • Low voltage on-board network

How to Fix

  1. Check the continuity of the voltage sensor circuit
  2. Check the connectors and connections of the control module
  3. Check the on-board voltage
  4. Diagnose the charger control module
  5. If necessary, replace the sensor or control module

Related codes

FAQ

What does the P1F01 code mean?

P1F01 is an OBD-II diagnostic trouble code that indicates: Battery Charger Control Module Supply Voltage Sensor Circuit Low Voltage

What causes a P1F01 error code?

The most common causes of P1F01 include: Open or short circuit in the sensor circuit; Poor contact in the control module connectors; Voltage sensor fault; Problems with the charger control module itself.

How do I fix a P1F01 diagnostic trouble code?

To fix P1F01: Check the continuity of the voltage sensor circuit. Check the connectors and connections of the control module. Check the on-board voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1F01?

Yes, but get it checked soon

How much does it cost to fix P1F01?

The estimated repair cost for P1F01 is $17–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat