OBD Guide

P2DB3

Drive Motor A Temperature Sensor C Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Switching to emergency mode
  • Incorrect engine temperature readings
  • Deterioration in efficiency

Causes

  • Engine temperature sensor A fault
  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Wiring harness damage
  • Malfunction of the hybrid system control unit

How to Fix

  1. Check the continuity of the temperature sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance of the temperature sensor
  4. Replace faulty temperature sensor
  5. Check and replace wiring harness if necessary

Related codes

Error P2DB3 by Vehicle Brand