OBD Guide

P0D46

Battery Charger 14 Volt Output Voltage Sensor Circuit Intermittent/Erratic

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Malfunction indicator light comes on
  • Incorrect charging voltage readings
  • Reduced battery charging efficiency
  • Intermittent charger operation
  • System transition to emergency mode

Causes

  • Malfunction of 14V charging voltage sensor
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor circuit connectors
  • Corroded contacts or damaged wiring
  • Problems with the charging control module

How to Fix

  1. Check the continuity of the voltage sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the functionality of the voltage sensor
  4. Scan the charging control module for additional errors
  5. If necessary, replace the sensor or repair the wiring

Related codes

Error P0D46 by Vehicle Brand