199000990 - 1080BA UPSTREAM LAMBDA SENSOR OPERATION CHECK
| CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK | |
|---|---|---|
| 1 | Turn the ignition key OFF.Disconnect the cable loom from the lambda sensor.Disconnect the wiring harness connector from engine control unit connector B. Turn the ignition ON.Turn the ignition key ON.Measure the voltage between Pin 1 (wiring side) of the sensor and earth is less than 0.3 V. See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 2 | Turn the ignition key OFF.Check that the resistance between Pin 1 (wiring side) of the sensor and earth is greater than 500 kOhms See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 3 | Measure the resistance between Pin 1 (wiring side) of the sensor and Pin 47 (wiring side) of the control unit is less than 5 Ohms See K040 LAMBDA SENSOR See M010 ENGINE MANAGEMENT ECU | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 4 | Turn the ignition key ON.Measure the voltage between Pin 5 (wiring side) of the sensor and earth is less than 0.3 V. See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 5 | Turn the ignition key OFF.Check that the resistance between Pin 5 (wiring side) of the sensor and earth is greater than 500 kOhms See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 6 | Disconnect the wiring harness connector from engine control unit connector BDisconnect the cable loom connector from the engine management control unit connector A.Measure the resistance between Pin 5 (wiring side) of the sensor and Pin 80 (wiring side) of the control unit is less than 5 Ohms See K040 LAMBDA SENSOR See M010 ENGINE MANAGEMENT ECU | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 7 | Turn the ignition key ON.Measure the voltage between Pin 2 (wiring side) of the sensor and earth is less than 0.3 V. See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 8 | Turn the ignition key OFF.Check that the resistance between Pin 2 (wiring side) of the sensor and earth is greater than 500 kOhms See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 9 | Disconnect the wiring harness connector from engine control unit connector ADisconnect the wiring harness connector from engine control unit connector BMeasure the resistance between Pin 2 (wiring side) of the sensor and Pin 45 (wiring side) of the control unit is less than 5 Ohms See K040 LAMBDA SENSOR See M010 ENGINE MANAGEMENT ECU | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 10 | Turn the ignition key ON.Measure the voltage between Pin 6 (wiring side) of the sensor and earth is less than 0.3 V. See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 11 | Turn the ignition key OFF.Check that the resistance between Pin 6 (wiring side) of the sensor and earth is greater than 500 kOhms See K040 LAMBDA SENSOR | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 12 | Measure the resistance between Pin 6 (wiring side) of the sensor and Pin 46 (wiring side) of the control unit is less than 5 Ohms See K040 LAMBDA SENSOR See M010 ENGINE MANAGEMENT ECU | Repair or if necessary replace the electrical wiring between the engine management control unit and the lambda sensor. See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT |
| 13 | Replace the Lambda sensor Op. 1080B90 LAMBDA SENSOR - R.R.and check the fault has disappeared | Repair the original lambda sensor and replace the engine management control unit. Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R |