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Error message

Error message displayed — Check connections and cycle ignition

Bosch · OBD1200 CodeConnect

What does Error message mean?

An error message may appear if the scan tool cannot communicate with the vehicle. This could be due to a loose connection or the vehicle's ignition status.

Common Causes

  • OBDII connector is not attached properly.
  • Vehicle ignition is not turned on.
  • Vehicle computer requires a reset.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the OBDII connector is securely plugged into the vehicle.

  2. 2

    Turn the vehicle's ignition key to the OFF position for 10 seconds, then turn it back ON.

  3. 3

    If prompted, select YES to try connecting again.

  4. 4

    If the problem persists, refer to the "Error Messages" section in the Troubleshooting guide.

Browse all codes in this manual (15)
Verified technical data. Last updated: April 2026

Related Faults

Check connection! Try again?Check connection! Try again? - Communication errorCommand canceledCommand canceled - Erase codes function was stoppedERR_CODE_42Error code 42 — Possible communication issue
Source: Bosch OBD1200 CodeConnect
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