P2D77

Battery Charger Control Module B Performance

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced vehicle power
Warning indicator on the dashboard
Battery charging problems
Reduced performance of the hybrid system
The car goes into emergency mode

Causes

Charge control module B fault
Problems with electrical connections
Open or short circuit in the circuit
Module software error
Wiring harness damage

How to Fix

Check module electrical connections
Test Charge Control Module B
Check the integrity of the wiring harness
Update module software
Replace charging control module B if necessary

Related codes

P2D76 P2D78 P0AA6