OBD Guide

P0C4C

Hybrid/EV Battery Pack Coolant Pump A Supply Voltage Circuit Low

P0C4C is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Coolant Pump A Supply Voltage Circuit Low. Common causes: poor contact in the pump power circuit, broken or damaged wires. Estimated repair cost: $56โ€“167.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$56โ€“167 (est.)

Symptoms

  • Reduced performance of the hybrid/electric system
  • Battery overheating
  • The malfunction indicator on the dashboard lights up
  • Reducing power or turning off the hybrid system

Causes

  • Poor contact in the pump power circuit
  • Broken or damaged wires
  • Cooling pump malfunction
  • Problems with the control unit
  • Low voltage in the on-board network

How to Fix

  1. Check the voltage in the pump power circuit
  2. Inspect and, if necessary, replace damaged wires
  3. Check contacts and connections
  4. Test the cooling pump
  5. Check the operation of the control unit

Related codes

Error P0C4C by Vehicle Brand

FAQ

What does the P0C4C code mean?

P0C4C is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Coolant Pump A Supply Voltage Circuit Low

What causes a P0C4C error code?

The most common causes of P0C4C include: Poor contact in the pump power circuit; Broken or damaged wires; Cooling pump malfunction; Problems with the control unit.

How do I fix a P0C4C diagnostic trouble code?

To fix P0C4C: Check the voltage in the pump power circuit. Inspect and, if necessary, replace damaged wires. Check contacts and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0C4C?

Do not drive โ€” repair immediately

How much does it cost to fix P0C4C?

The estimated repair cost for P0C4C is $56โ€“167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat