OBD Guide

P0D1D

Hybrid/EV Battery Pack Coolant Control Valve B Control Circuit Low

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced performance of the hybrid system
  • Warning messages on the dashboard
  • Battery overheating
  • Reduced power or range (for EV)
  • Activation of emergency operation

Causes

  • Open or short circuit in control circuit
  • Cooling solenoid valve malfunction
  • Poor contact in control circuit connectors
  • Wiring harness damage
  • Battery control unit malfunction

How to Fix

  1. Check valve control circuit integrity
  2. Check valve resistance and operation
  3. Inspect and clean all electrical connections
  4. Check wiring harness for damage
  5. If necessary, replace the cooling valve
  6. Repair only from an authorized dealer

Related codes

Error P0D1D by Vehicle Brand