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 MANUALSVOLKSWAGEN1994JETTA III GLX, AUTOMATIC, 096REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 3 (4 SPD. AUTOMATIC TRANSMISSION 01M ON BOARD DIAGNOSTIC (A3 PLATFORM))
1994 Volkswagen Jetta III GLX, Automatic, 096
Section 3 (4 SPD. Automatic Transmission 01M On Board Diagnostic (A3 Platform))
1994 Volkswagen Jetta III GLX, Automatic, 096SECTION Section 3 (4 SPD. Automatic Transmission 01M On Board Diagnostic (A3 Platform))
WARNING: This page is about a different variant/trim than selected.
- Model Application
- On Board Diagnostic (OBD) function
- Notes
- Additional information
- Transmission Control Module -J217- with driving adaptive gear shift points (fuzzy logic)
- Shift point variations for hills
- Safety functions of Transmission Control Module (TCM) -J217-
- Emergency running mode
- Malfunctions which may lead to emergency running:
- TCM -J217- malfunction recognition
- VAG 1551 Scan Tool
- On Board Diagnostic (OBD), technical data
- On Board Diagnostic (OBD), guide
- Electrical/electronic components, location
- 4 SPD. Automatic Transmission 01M On Board Diagnostic (A3 Platform)
- Notes
- Transmission Control Module (TCM) -J217-, location
- Transmission Control Module (TCM) -J217-, removing
- Transmission Control Module (TCM) -J217-, installing
- Engine Control Module (ECM), location
- Data Link Connector (DLC), location
- Valve body, location
- Conductor strip with integrated Transmission Fluid Temperature Sensor -G93-, location
- Conductor strip, removing and installing
- Multi-function Transmission Range (TR) Switch -F125-, location
- Transmission Vehicle Speed Sensor (VSS) -G38-, location
- Vehicle Speed Sensor (VSS) -G68-, location
- Throttle Position (TP) Sensor -G69-, removing and installing
- Shift Lock Solenoid -N110-, location
- Cruise Control Switch -E45-, location
- Kick Down Switch -F8-, location
- Brake Light Switch -F-, location
- Park/Neutral Position (PNP) Relay -J226-, location
- 4 SPD. Automatic Transmission 01M On Board Diagnostic (A3 Platform)
- On Board Diagnostic (OBD), performing
- Special tools, testers
- Additional information
- VAG 1551 Scan Tool (ST), connecting and selecting functions
- Diagnostic Trouble Code (DTC) memory, checking (function 02)
- Diagnostic Trouble Code (DTC) table
- Diagnostic Trouble Code (DTC) memory, erasing (function 05)
- Basic setting, initiating (function 04)
- Read measuring value block (function 08)
- Test table
- Ending Output (function 06)
- Transmission, electrical testing
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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.