125000763 - 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
Disconnect the negative battery terminal- Disconnect the negative battery terminal.
- Disconnect the electrical connection for the upstream Lambda sensor.
- Check that the heater resistance measured between pins 3 and 4 is between 3.5 and 4.5 Ohm at 20 °C.
| Description | Connector | |
|---|---|---|
| - | Lambda sensor downstream of the post-converter | See K17 LAMBDA SENSOR DOWNSTREAM OF POST-CATALYZER ( ENGINE ) |
| Measurement | Value | ||
|---|---|---|---|
| - | Heater resistance (ohm) | Pins 3 - 4 at 20°C | 4.0 ± 0.5 |