P1A05
Battery Energy Control Module Random Access Memory
P1A05 is an OBD-II diagnostic trouble code meaning: Battery Energy Control Module Random Access Memory. Common causes: module software failure, damage to module ram. Estimated repair cost: $89–278.
Symptoms
- Check Engine light comes on
- Problems with the start-stop system
- Reduced hybrid system efficiency
- Unstable operation of the vehicle's electrical system
- Errors in the battery charging system
Causes
- Module software failure
- Damage to module RAM
- Module power problems
- Short circuit in the module circuit
- Corrosion of contacts or connectors
How to Fix
- Reset the error and check for its reappearance
- Check power supply and grounding of the module
- Inspect connectors and wiring harnesses for damage
- Update module software
- Replace the battery energy management module if necessary
Related codes
FAQ
What does the P1A05 code mean?
P1A05 is an OBD-II diagnostic trouble code that indicates: Battery Energy Control Module Random Access Memory
What causes a P1A05 error code?
The most common causes of P1A05 include: Module software failure; Damage to module RAM; Module power problems; Short circuit in the module circuit.
How do I fix a P1A05 diagnostic trouble code?
To fix P1A05: Reset the error and check for its reappearance. Check power supply and grounding of the module. Inspect connectors and wiring harnesses for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1A05?
Yes, but get it checked soon
How much does it cost to fix P1A05?
The estimated repair cost for P1A05 is $89–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat