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P0600

P0600 - Serial Comm Link Malfunction

Bosch · OBD1000

What does P0600 mean?

This code indicates a malfunction in the serial communication link between control modules. They are unable to exchange data properly.

Common Causes

  • Wiring issue in the communication network
  • Faulty control module
  • Interference on the communication bus

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check all communication wiring for damage or loose connections.

  2. 2

    Inspect modules for any visible damage.

  3. 3

    Ensure no external sources are causing interference.

  4. 4

    Professional diagnosis is recommended.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

NO LINKNO LINK message displayed — Unable to communicate with the vehicleP0217P0217 — Engine Overtemp ConditionP0298P0298 — Engine Oil Temperature Too High
Source: OBD1000
Open Manual (Page 21)Search more codes in this manual