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Code 11 or 111

Code 11 or 111 — No faults detected during KOER test

Bosch · OBD1300 Scan Tool

What does Code 11 or 111 mean?

This code indicates that the vehicle's self-test completed successfully without finding any active problems during the Key On, Engine Running (KOER) test. It means the Powertrain Control Module (PCM) has passed the diagnostic check.

Common Causes

  • No active trouble conditions found by the PCM.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the scan tool is properly connected to the vehicle's Data Link Connector (DLC).

  2. 2

    Follow the on-screen instructions for the KOER test.

  3. 3

    Start the engine and let it idle until hot.

  4. 4

    Re-attempt the KOER test to confirm the result.

Browse all codes in this manual (20)
Verified technical data. Last updated: April 2026

Related Faults

Code 12Code 12 display — No RPM reference pulse detectedCodes remaining:0Codes remaining: 0 confirmationCommand sentCommand sent message
Source: Bosch OBD1300 Scan Tool
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