Charging Stopped — Charge Cable Unexpectedly Disconnected
The TESLA-CP_A056 (Tesla Charge Port (CP)) EV fault code means: Charging Stopped — Charge Cable Unexpectedly Disconnected. This is a minor severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $0 — this is a session-interruption notice, not a hardware fault. Recurring interruptions with a properly seated cable point to the charging equipment.
A $30 car code reader can't do diesel. The HD7000 reads full-system codes and does parked DPF regen, idle/speed-limit, and service resets from the cab — on everything from a 6.7 Cummins/Power Stroke/Duramax pickup to Class-8 trucks (Detroit, Paccar, CAT, Volvo, Mack, International).
Full-system 6/9/16-pin diesel scan tool for Cummins, Paccar, CAT, Detroit and more — plug-and-play, no subscription. A cheaper way to read heavy-duty codes a basic OBD2 scanner skips entirely.
Affiliate links — we earn a commission at no extra cost to you.
Common Symptoms
- Alert on the touchscreen: "Charging stopped - Charge cable disconnected — Close charge port - Press brake pedal and retry"
- A charging session ends before the target charge level is reached
- Typically appears right after a cable was pulled without stopping the session first
- Driving is unaffected
Probable Causes (Ranked by Likelihood)
- The connection between the charge port and the charge cable was interrupted mid-session — most commonly the cable was disconnected without stopping charging first Likely
- A loose or intermittent cable connection interrupting the session Possible
Frequently Asked Questions
What does CP_a056 mean on a Tesla?
Tesla's official meaning: charging stopped because the vehicle detected that the connection between the charge port and the charge cable was unexpectedly interrupted — usually because the cable was unplugged without stopping the session first.
How do I avoid CP_a056?
Stop charging before unplugging: press the button on the charge handle (where equipped), or stop the session from the touchscreen, the Tesla app, or the charging station. Then disconnect the cable.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
Per Tesla's official guidance: always stop charging before disconnecting the cable — via the button on the charge handle (on some equipment), the vehicle touchscreen, the Tesla app, or the charging station.
To resume charging, close the charge port, press the brake pedal, and reconnect the cable.
If sessions keep getting interrupted without anyone touching the cable, check that the cable is fully seated and latching properly (see CP_a054), and try different equipment to rule out the charger.
Sources 4
This page is built from documented references. Verify against your own service info before repair work.
- Tesla Model 3 Owner's ManualTroubleshooting Alerts (official Tesla alert text for CP_a056)
- Tesla Model Y Owner's ManualTroubleshooting Alerts (confirms CP_a056 is documented across models)
- Tesla firmware alert reference (core-hacked/tesla-alerts-dictionary): cp_a056community-maintained dictionary, not an official manufacturer document
- Tessie Tesla alert statisticsthird-party Tesla alert reference with owner-telemetry frequency — not an official Tesla document
Commonly Affected Vehicles
- Tesla Model 3
- Tesla Model Y
- Tesla Model S
- Tesla Model X
- Tesla Cybertruck
Related Codes
Explore More
Was this helpful?
Send this to whoever is fixing the truck — your tech, or the person asking what the fault means.