OBD Guide

P1A5E

Battery Energy Control Module Ignition On/Start Switch Circuit Low Voltage

P1A5E is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Ignition On/Start Switch Circuit Low Voltage. Common causes: open or short circuit in the circuit, battery energy management module malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Problems starting the engine
  • Reduced performance of the hybrid system
  • Unstable operation of the vehicle's electrical system

Causes

  • Open or short circuit in the circuit
  • Battery Energy Management Module Malfunction
  • Fuse problems
  • Bad contacts in connectors
  • Ignition switch malfunction

How to Fix

  1. Check the integrity of wiring and connections
  2. Check the condition of the fuses
  3. Check the connectors and contacts of the control module
  4. Diagnose the battery energy management module
  5. If necessary, replace the control module

Related codes

FAQ

What does the P1A5E code mean?

P1A5E is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Ignition On/Start Switch Circuit Low Voltage

What causes a P1A5E error code?

The most common causes of P1A5E include: Open or short circuit in the circuit; Battery Energy Management Module Malfunction; Fuse problems; Bad contacts in connectors.

How do I fix a P1A5E diagnostic trouble code?

To fix P1A5E: Check the integrity of wiring and connections. Check the condition of the fuses. Check the connectors and contacts of the control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1A5E?

Yes, but get it checked soon

How much does it cost to fix P1A5E?

The estimated repair cost for P1A5E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat