Charge Port Proximity Detection Circuit Fault

What this code means

The proximity detection circuit that detects when a charging connector is inserted is malfunctioning. This circuit uses a pilot signal to communicate with the EVSE.

Symptoms

• Vehicle does not detect charger connected
• Charge session will not initiate
• Intermittent charge recognition
• EVSE shows no vehicle detected
• Dashboard shows not connected despite plugged in

Common causes

• Proximity pilot circuit damaged
• Charge port connector pin damage
• EVSE pilot wire fault
• Charge port control module failure
• Water intrusion affecting pilot signal

Diagnostic steps

1. Test pilot signal voltage levels at charge port
2. Inspect charge port pins for damage or corrosion
3. Test with different EVSE equipment
4. Measure proximity resistor values
5. Check charge port control module operation

Repair notes

Replace charge port assembly or repair pilot circuit. Inspect connector pins for damage.

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