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 MANUALSVOLKSWAGEN2019ATLAS SEL, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSGENERIC SCAN TOOL (GENERAL INFORMATION & DESCRIPTION AND OPERATION) [DCGA] (1 OF 2)
2019 Volkswagen Atlas SEL, FWD
Generic Scan Tool (General Information & Description And Operation) [DCGA] (1 Of 2)
2019 Volkswagen Atlas SEL, FWDSECTION Generic Scan Tool (General Information & Description And Operation) [DCGA] (1 Of 2)
- St Generic Scan Tool
- General Information
- Description And Operation
- Notes
- On Board Diagnostic Systems
- Evaporative Emission System
- Electronic Throttle Control (Etc) System
- Electronic Power Control (EPC) Warning Lamp
- Engine Control Module (ECM)
- Malfunction Indicator Lamp (Mil)
- Controller Area Network (Can)
- Fuel Supply
- Ignition And Timing
- Variable Valve Timing
- Exhaust-Gas RECIRCULATION (EGR) System
- Secondary Air Injection
- Exhaust Systems
- Diagnosis And Testing
- Notes
- Preliminary Check
- Readiness Code
- Diagnostic Modes 01 - 0A
- Notes
- Diagnostic Mode 01 - Read Current System Data
- Diagnostic Mode 02 - Read Operating Conditions
- Diagnostic Mode 03 - Read DTC Memory
- Diagnostic Mode 04 - Erase DTC Memory
- Diagnostic Mode 05 - Read Oxygen Sensor Monitoring Test Results
- Diagnostic Mode 06 - Read Test Results For Specific Diagnostic Functions
- Notes
- Monitor-ID $01: Oxygen Sensor Monitor Bank 1 - Sensor 1
- Monitor-ID $02: Oxygen Sensor Monitor Bank 1 - Sensor 2
- Monitor-ID $21: Catalyst Monitor Bank 1
- Monitor-ID $35: Cam Shaft Adjustment
- Monitor-ID $3C: Fuel Tank Venting System Leak Test (0.020" / 0.5 mm)
- Monitor-ID $3D: EVAP Valve Function Check
- Monitor-ID $41: Oxygen Sensor Heater Monitor Bank 1 - Sensor 1
- Monitor-ID $42: Oxygen Sensor Heater Monitor Bank 1 - Sensor 2
- Monitor-ID $81: Fuel System Monitor
- Monitor-ID $A2: Mis-Fire Cylinder 1 Data
- Monitor-ID $A3: Mis-Fire Cylinder 2 Data
- Monitor-ID $A4: Mis-Fire Cylinder 3 Data
- Monitor-ID $A5: Mis-Fire Cylinder 4 Data
- Diagnostic Mode 07 - Read Faults Detected During The Current Or Last Driving Cycle
- Diagnostic Mode 08 - Request Control Of On-Board System, Test Or Component
- Diagnostic Mode 09 - Read Vehicle Information
- Diagnostic Mode 0A - Check Permanent DTC Memory
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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.