194003934 - 1080BG PRECONVERTER OUTPUT TEMPERATURE SENSOR OPERATION CHECK
| STEP | CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK |
|---|---|---|
| 1 | Check whether error P2080 - Temperature sensor on preconverter output - is present using the diagnostic equipment | Replace the temperature sensor Op. 1080B64 CATALYTIC CONVERTER EXCESS TEMPERATURE THERMOCOUPLE - R + R |
| 2 | Turn the ignition key OFF.Disconnect the wiring harness connector from the upstream particulate filter temperature (DPF)Turn the ignition key ON.Check that the voltage across pin 1 and 2 of the sensor See K189 UPSTREAM PARTICULATE FILTER TEMPERATURE SENSOR (DPF)is greater than 4.8 V.Move on to Step 4 | Move on to Step 3 |
| 3 | If faults are found, restore the wiring between the engine control unit and the downstream temperature sensor See E5070 PARTICLE FILTER SYSTEMReplace the wiring if necessary.The test can be considered over | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R |
| 4 | Turn the ignition key OFF.Check that the resistance across pin 1 and 2 of the sensor See K189 UPSTREAM PARTICULATE FILTER TEMPERATURE SENSOR (DPF)is between 200 and 600 Ohm | Replace the temperature sensor Op. 1080B64 CATALYTIC CONVERTER EXCESS TEMPERATURE THERMOCOUPLE - R + R |
| 5 | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R |