OBD Guide

P1A5A

Hybrid System Temperature

P1A5A is an OBD-II diagnostic trouble code meaning: Hybrid System Temperature. Common causes: overheating of hybrid system components, temperature sensor malfunction. Estimated repair cost: $17–111.

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

Symptoms

  • Hybrid system power reduction
  • Switching to emergency mode
  • Check Engine light comes on
  • Increased fuel consumption
  • Unstable engine operation

Causes

  • Overheating of hybrid system components
  • Temperature sensor malfunction
  • Hybrid battery cooling problems
  • Temperature control system malfunction
  • Wiring harness damage

How to Fix

  1. Check coolant level
  2. Diagnose temperature sensors
  3. Check the operation of the hybrid battery cooling system
  4. Inspect the wiring harness for damage
  5. Replace faulty components

Related codes

FAQ

What does the P1A5A code mean?

P1A5A is an OBD-II diagnostic trouble code that indicates: Hybrid System Temperature

What causes a P1A5A error code?

The most common causes of P1A5A include: Overheating of hybrid system components; Temperature sensor malfunction; Hybrid battery cooling problems; Temperature control system malfunction.

How do I fix a P1A5A diagnostic trouble code?

To fix P1A5A: Check coolant level. Diagnose temperature sensors. Check the operation of the hybrid battery cooling system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A5A?

Yes, but get it checked soon

How much does it cost to fix P1A5A?

The estimated repair cost for P1A5A is $17–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat