P2D78
Battery Charger Control Module B Processor Performance
P2D78 is an OBD-II diagnostic trouble code meaning: Battery Charger Control Module B Processor Performance. Common causes: processor failure in the charging control module, module power problems. Estimated repair cost: $167–556.
Symptoms
- Check Engine light comes on
- Reduced performance of the hybrid system
- Problems with charging a high-voltage battery
- The car goes into emergency mode
- Reduced engine power
Causes
- Processor failure in the charging control module
- Module power problems
- Short circuit in control circuit
- Module software error
- Wiring harness damage
How to Fix
- Charging control module diagnostics
- Checking power and grounding circuits
- Module software update
- Replacing the charging control module if necessary
- Checking the condition of the high-voltage battery
Related codes
Error P2D78 by Vehicle Brand
FAQ
What does the P2D78 code mean?
P2D78 is an OBD-II diagnostic trouble code that indicates: Battery Charger Control Module B Processor Performance
What causes a P2D78 error code?
The most common causes of P2D78 include: Processor failure in the charging control module; Module power problems; Short circuit in control circuit; Module software error.
How do I fix a P2D78 diagnostic trouble code?
To fix P2D78: Charging control module diagnostics. Checking power and grounding circuits. Module software update. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2D78?
Limited driving only, diagnose soon
How much does it cost to fix P2D78?
The estimated repair cost for P2D78 is $167–556. Actual cost depends on your vehicle, location, and labor rates.
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