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 MANUALSVOLKSWAGEN2003NEW BEETLE (1C1) L4-2.0L (BDC)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL TESTING - 4 SPEED AUTOMATIC 01MNORMAL SCAN DATA VALUESDISPLAY GROUPSDISPLAY GROUP 004
2003 Volkswagen New Beetle (1C1) L4-2.0L (BDC)
Display Group 004
2003 Volkswagen New Beetle (1C1) L4-2.0L (BDC)SECTION Display Group 004
Reading measured value block, Display group number 004; "Checking solenoid valves while driving"
- 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 valves are only controlled during gear shifts and are 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 (0000 00) 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) See "How to Display Diagnostic Trouble Codes".
Checking Solenoid Valves While Driving
Display Field 1
Display Field 1 (continued)
Display Field 2
Display Fields 3 and 4
RENDER: 1.0x
NO RELATED
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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.