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.
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HOMESERVICE MANUALSAUDI2012A3 (8PA) L4-2.0L TURBO (CCTA)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE DESCRIPTIONSPRELIMINARY CHECK
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)
Preliminary Check
2012 Audi A3 (8PA) L4-2.0L Turbo (CCTA)SECTION Preliminary Check
Preliminary Check
Before performing any pin point test or component diagnosis, a preliminary check must be performed.
Check the Technical Bulletins for information that may supersede any information included in this service information.
- Connect the scan tool.
- Switch the ignition on.
- Using the scan tool, check for any stored or related DTC's.
If other DTC's are stored:
- Repair these DTC's first before performing the following procedure.
If no other DTC's are stored:
- Using the scan tool, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] Diagnostic Modes 01 - 0A.
- Perform a road test to attempt to duplicate the customers complaint.
If the DTC returns:
- Perform the diagnostic procedure.
If the DTC does not return:
- The fault is intermittent or a sporadic condition may exist.
- Check the suspected component, electrical harness and electrical harness connectors for damage, corrosion, loose or broken terminals.
- If necessary, repair the faulty wiring connection.
- Perform a road test to verify the repair.
If the DTC returns:
- Perform the diagnostic procedure.
If the DTC does not return:
The fault may have been the result of a loose electrical connection.
- Generate readiness code. Refer to => [ Readiness Code ] Readiness Code.
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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.