Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Trouble Code (DTC) memory, checking
Indicated on display:
| Rapid data transfer HELP Select function XX |
- Press keys -0- and -2-; 02 enters the "Check DTC memory" function.
Indicated on display:
| Rapid data transfer Q 02 - Check DTC memory |
- Confirm entry with Q key.
The number of stored DTCs or "No DTC recognized" appears in the display.
| X DTCs recognized! |
- Press → key.
The stored DTCs are displayed and printed out one after the other.
- With DTC information print-out, eliminate malfunction according to DTC table, Diagnostic Trouble Code (DTC) table .
As with "No DTC recognized", the program returns to the start position after pressing the → key:
Indicated on display:
| Rapid data transfer HELP Select function XX |
- End output (Function 06). Refer to Diagnostic Trouble Code (DTC) memory, erasing and ending output .
- Switch off ignition and unplug diagnostic connector.
Work sequence if a DTC has been recognized:
1. Repair malfunction according to DTC table. Refer to Diagnostic Trouble Code (DTC) table
2. Check DTC memory (Function 02)
3. Erase DTC memory (Function 05)
4. End output (Function 06)
5. Perform a test drive
6. Check DTC memory again
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.