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 MANUALSAUDI1998A4 AVANT QUATTRO, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALGAUGESINSTRUMENT PANELSSYSTEM TESTINGTERMINAL IDENTIFICATION
1998 Audi A4 Avant Quattro, Automatic
Terminal Identification
1998 Audi A4 Avant Quattro, AutomaticSECTION Terminal Identification
When testing Auto-Check or Mini-Check system refer to table for terminal identification. See TERMINAL IDENTIFICATION table.
TERMINAL IDENTIFICATION
| Terminal No. | Circuit | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cluster Connector T6g (1) | ||||||||||
| 1 | Terminal No. 30 (B+) | |||||||||
| 2 | Terminal No. 58d | |||||||||
| 3 | Terminal No. 58 | |||||||||
| 4 | Speedometer Signal | |||||||||
| 5 | Fuel Level Sensor Signal | |||||||||
| 6 | Voltage Stabilizer Voltage Signal | |||||||||
| Cluster Connector T5c (1) | ||||||||||
| 1 | Coolant Switches Signals | |||||||||
| 2 | Brake & Hydraulic Switches Signals | |||||||||
| 3 | Terminal No. 31 (Ground) | |||||||||
| 4 | Terminal No. 15 (IGN B+) | |||||||||
| 5 | Terminal No. 61 | |||||||||
| Washer Level Connector (2) | ||||||||||
| 1 | Terminal No. 31 (Ground) | |||||||||
| 2 | Terminal No. 53c | |||||||||
| 3 | Level Switch | |||||||||
| Rear Lamp Control Module (3) | ||||||||||
| 54R | Right Brake Light | |||||||||
| 54L | Left Brake Light | |||||||||
| 58R1 | Right Turn Signal | |||||||||
| 58L1 | Left Turn Signal | |||||||||
| Front Lamp Control Module (4) | ||||||||||
| KB | Instrument Cluster Yellow Harness Connector Terminal No. 25 | |||||||||
| KS | Instrument Cluster Yellow Harness Connector Terminal No. 18 | |||||||||
| 15a | Instrument Cluster Blue Harness Connector Terminal No. 16 | |||||||||
| 31B | Ground | |||||||||
| 54 | Brake Light Switch | |||||||||
| 58R | Fuse/Relay Panel, Connector "H" | |||||||||
| 58l | Fuse/Relay Panel, Connector "H" | |||||||||
|
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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.