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cp_a043
Easy Fix
Tesla · Sedans
Charge port unable to lock - check for obstruction
Quick Answer
Error code CP_a043 on your Tesla Sedans means: Charge port unable to lock - check for obstruction. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
T3T3HT3PTSTSLRTSP
Likely Causes
  1. Foreign object or debris blocking charge port latch mechanism
  2. Charge port latch actuator motor failure
  3. Connector pin misalignment during insertion
  4. Charge door cable binding or frayed
  5. Software communication failure between charge port controller and main vehicle computer
How to Fix It
1
Visually inspect charge port opening for visible obstructions or debris
2
Gently clean charge port area with compressed air
3
Remove and reinsert charge cable slowly to ensure proper alignment
4
Attempt charging with different cable to rule out cable issue
5
If still failing, contact Tesla service for charge port latch replacement
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Compressed air canister
Replacement charge port latch assembly
Dielectric grease for connector protection
Related Error Codes
DI_a180DI_a190BMS_a066BMS_a064DI_a166
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