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.
On Board Diagnostic (OBD), function
The instrument cluster is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored sensors and components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot instrument cluster malfunctions and perform OBD program functions using VAS 5051/5052 tester in mode "Guided Fault Finding".
VAS 5051/5052 connected and in mode "Guided Fault Finding":
- Enter appropriate model, equipment and model year information and press ">" to confirm.
After the DTC memory of all control modules has been checked:
- Press "Go to" "Go to" button
- Select: "Function / Component Selection"
- Select: "Body (Repair 01; 27; 50 - 97)"
- Select: "Electrical Equipment (Repair 01; 90 - 97)"
- Select: "01 - On Board Diagnostic (OBD) capable systems"
- Select: "Instrument Cluster"
- Select appropriate option
- Follow tester prompts.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.