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 MANUALSVOLKSWAGEN2000GTI (1J1) L4-1.8L TURBO (AWD)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL TESTING - 4 SPEED AUTOMATIC 01MMEASURING VALUE BLOCKS (FUNCTION 08)EVALUATING MEASURED VALUE BLOCKS
2000 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)
Evaluating Measured Value Blocks
2000 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)SECTION Evaluating Measured Value Blocks
Test Table
Display Group 001 - Part 1:
Display Group 001 - Part 2:
Display Group 001 - Part 3:
Display Group 001 - Part 4:
Display Group 001 - Part 5:
Display Group 001 - Part 6:
Display Group 002 - Part 1:
Display Group 002 - Part 2:
Display Group 003 - Part 1:
Display Group 003 - Part 2:
Reading measured value block; Display group number 004; Checking solenoid valves while driving
NOTE:
- The solenoid valves can be checked while driving via "Read measured value block 08"; display group number 004.
- The table shows the solenoid valves -N88-, -N89- and -N90- (displays 1 to 3) as activated in each selector lever position. These solenoid valves control the shift valves for the relevant gears.
- The solenoid valve -N91- activates the lock-up clutch modulation valve and is not covered here.
- The solenoid valves -N92- and -N94- are supplementary valves which affect gear shifts. These are only controlled during gear shifts and displayed in fields 5 and 6. They can show "0" or "1" depending on the driving situation.
- At the start of a test drive the selector lever can be in position "1". During the drive it can be shifted progressively up to position "D".
- The mechanical gear "M" is not always engaged. The control module can engage this gear dependent upon the driving situation. The lock-up clutch can be checked in display group number 005.
- VAG 1551 display field 1 has 6 characters (000000) and is read as follows:
- Non-activated solenoid valves display "0" and activated solenoid valves display "1".
- All solenoid valves are checked via On Board Diagnostic (OBD) => Checking DTC memory, Page 01-34.
Checking solenoid valves while driving
Display Group 004 - Part 1:
Display Group 004 - Part 2:
Display Group 004 - Part 3:
Display Group 004 - Part 4:
Display Group 005 - Part 1:
Display Group 005 - Part 2:
Display Group 005 - Part 3:
Display Group 005 - Part 4:
Display Group 005 - Part 5:
Display Group 006:
Display Group 007 - Part 1:
Display Group 007 - Part 2:
Display Group 007 - Part 3:
Display Group 008:
RENDER: 1.0x
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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.