Psa Interface Checker 4.4.0 -

Version 4.4.0 refined how exemptions are processed. The interface checker validates exemptions for specific users, runtime classes, or namespaces, ensuring that critical system pods (like CNI plugins or kube-proxy) are not accidentally blocked by strict PSA policies.

| Error Message | Likely Cause | Fix | | :--- | :--- | :--- | | No USB Communication | Driver conflict or wrong COM port | Go to Device Manager → Ports → Set COM port to 1, 2, 3, or 4 (not higher). | | Voltage too low (8.4V) | Poor ground or weak battery | Connect a battery charger. The interface needs 12V to switch relays. | | VAN Bus Error | Wrong vehicle selected | VAN is only for 2001-2007 models (e.g., Peugeot 406). Do not test CAN cars on VAN. | | K-Line Short to Ground | Aftermarket radio or alarm | Disconnect non-factory accessories from the OBD port. | | Timeout on all protocols | Blown OBD fuse | Check vehicle’s cigar lighter fuse (often shared with OBD port). | psa interface checker 4.4.0

How does this tool stack up against generic OBD scanners or other manufacturer-specific checkers? Version 4

Using this tool is straightforward, but following the exact order is crucial to avoid false negatives. How does this tool stack up against generic

$ psa-interface-checker --target https://mypsa.company.com --oauth-client-id svc_api --oauth-scope "read:projects write:time"
[✓] OAuth token acquired (expires in 3599s)
[✓] Dependency check: auth/health → 200 OK
[✓] GET /api/v4/projects → 200 OK (schema valid)
[⚠] POST /api/v4/time/entries → 429 (throttled) – rate limit 100/min exceeded
[✗] GET /api/v4/reports/billing → 500 Internal Server Error
Health score: 67/100
Errors: CONTRACT(1), THROTTLE(1), AUTH(0), TIMEOUT(0), DEPENDENCY(0)
Report written to psa_check_20260120_143022.json