312001711 - 5040BA MULTI-STAGE PRESSURE SWITCH/LINEAR SENSOR OPERATION CHECK
| STEP | CHECK TO BE PERFORMED | REMEDIAL ACTION IF THE CHECK IS NOT OK |
|---|---|---|
| 1 | Disconnect the cable loom connector from the linear sensor (for the climate control system). See table K120 ELECTRIC POWER ASSISTED STEERING FAULT DISPLAYMeasure the voltage between Pin 2 of the wiring side connector and Earth, checking it is within the range between 4.8 and 5.2 V. | Move on to Step 2 |
| 2 | Turn the ignition key to STOP.Disconnect the wiring loom connector from the accelerator pedal potentiometerSee table K055 CODE FAILURE WARNING LIGHT OFF / (DO NOT CARRY OUT INITIAL TEST)Turn the ignition key to MAR.Measure the voltage between Pin 2 of the sensor and Earth, checking it is within the range between 4.8 and 5.2 V. See table K120 ELECTRIC POWER ASSISTED STEERING FAULT DISPLAYMove on to Step 5 | Move on to Step 4 |
| 3 | If faults are present, repair or if necessary replace the electrical wiring between the accelerator pedal potentiometer and the engine management control unit. See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT The test can be considered finished. | Replace the accelerator pedalOp. 1068A14 |
| 4 | If faults are present, repair or if necessary replace the electrical wiring between the linear sensor and the engine control unit. See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT The test can be considered finished. | Replace the engine management control unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R |
| 5 | Measure the voltage between Pins 1 and 2 of the sensor, checking it is within the range of between 4.8 and 5.2 V. See table K120 ELECTRIC POWER ASSISTED STEERING FAULT DISPLAY | Move on to Step 4 |
| 6 | Display the A/C Pressure parameter (conditioned air) and check it is less than 0.3 Volt | Move on to Step 4 |
| 7 | Connect a shunt cable with a fuse between Pins 2 and 3 of the sensor See table K120 ELECTRIC POWER ASSISTED STEERING FAULT DISPLAYDisplay the A/C Pressure parameter (conditioned air) and check it is less than 4.8 Volt.Move on to Step 4. | Replace the pressure transducer Op. 5040B20 AIR CONDITIONING LINEAR PRESSURE TRANSDUCER - R.R. |