Sender for Fuel Gauge -G-, checking
If the fuel gauge is malfunctioning, check whether the signal generated by the fuel level sender is being received by the instrument cluster.
- Connect scan tool. Refer to VAG 1551/1552 Scan Tool (ST), VAS 5051 Vehicle Diagnostic Testing and Information System or VAS 5052 Vehicle Diagnostic and Service System, connecting and selecting functions .
- Select "Read Measuring Value Block" function 08. Refer to Read Measuring Value Block (function 08) .
- Select display group 002.
If fuel level is indicated on scan tool, the instrument cluster is malfunctioning and must be replaced.
- Removing instrument cluster. Refer to Instrument cluster, removing and installing .
If fuel level is not indicated on scan tool, check the signal at the multi-pin connector on instrument cluster.
- Remove instrument cluster. Refer to Instrument cluster, removing and installing .
- Connect test box VAG 1598 to the blue 32-pin connector using adapter VAG 1598/25.
- Use multimeter to measure the resistance between contacts 5 and 7 (sensor Ground).
Specifications:
| Fuel tank empty: | approx. 54 Ω (front-wheel drive) | |
| approx. 59 Ω (all-wheel drive) | ||
| Fuel tank full: | approx. 290 Ω (front-wheel drive) | |
| approx. 282 Ω (all-wheel drive) | ||
- If measured values do not match the specifications, test wiring between instrument cluster and fuel gauge sender -G (front-wheel drive / all-wheel drive) or -G169- (all-wheel drive) using wiring diagram.
Refer to Electrical Wiring Diagrams
- If there are no open circuits or short circuits, check fuel gauge sender -G (front-wheel drive / all-wheel drive) or -G169- (all-wheel drive).
- Check sender for fuel gauge.
Refer to
- 20 - FUEL PUMP, FUEL SUPPLY, EVAPORATIVE EMISSIONS for 1.8 LITER 4-CYL. 5V TURBO GENERIC SCAN TOOL ENGINE CODE(S): AMU, BEA, ATC, AWP
- 20 - FUEL SUPPLY for 3.2 LITER V6 4V GENERIC SCAN TOOL, ENGINE CODE: BHE
- If measured values match the specification, the malfunction is in the instrument cluster; replace the instrument cluster. Refer to Instrument cluster, removing and installing .