P2D72

Battery Charging System Negative Contactor D Stuck Open

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Charging system warning on dashboard
Battery low
Problems starting the engine
Reduced hybrid system efficiency (if applicable)

Causes

Mechanical contactor jamming
Open or short circuit in control circuit
Malfunction of the charging system control unit
Contact corrosion
Contactor power problems

How to Fix

Check the condition of contactor D
Check the integrity of the control circuit
Measure contactor resistance
Check control signals from the control unit
Replace a faulty contactor or repair a circuit

Related codes

P2D70 P2D71 P2D73