Fault diagnosis
N80 OVERTAKING DEVICE NOT WORKING
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
The overtaking sensor automatically runs a self-check on system parts at key ON. The device leds come on for 2 seconds to inform the user that the initial test has been correctly carried out.
Engines: 2.0 16V, 2.0 JTD 8V, 2.3 JTD 16V, 2.8 JTD 8V
| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS | ||
|---|---|---|---|---|
| 0 | PRELIMINARY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check indicator performance (sound/optical) | Move on to Step | 1. The LED and buzzer are not activated when a fault is detected. | Move on to Step | |
| 2. When a fault is detected, the buzzer emits three sound pulses lasting one second each. | Move on to Step | |||
| 3. The indicator LED remains permanently on if a fault is detected. | Move on to Step | |||
| 4. The indicator LED flashes when a fault is detected. | Move on to Step | |||
| 1 | DAYTIME OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that when the overtaking indicator is turned on and a hand is moved in front of the sensor in the door mirror with the vehicle travelling at more than 30 km/h. The indicator (LED) comes on and the buzzer buzzes. | Move on to Step | The overtaking indicator light (LED) and sound indicator (buzzer) are not activated. | Move on to Step | |
| 2 | INDICATOR ON SIGNAL RECEPTION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check the overtaking sensor control unit corrector to ensure reception of the turn signal (overtaking signal) activation signal from the stalk unit See E3092 OVERTAKING SENSOR | Move on to Step | 1. Signal missing, fault in wiring. | 1. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |
| 2. Signal absent, fault in stalk unit system | 2. Repair or replace the stalk unit | |||
| 3 | SPEEDOMETER SIGNAL RECEPTION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check correct reception of the speedometer signal from the instrument panel at the overtaking sensor control unit connector See E3092 OVERTAKING SENSOR | Move on to Step | 1. Signal missing, fault in wiring. | 1. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |
| 2. Instrument panel system fault absent signal. | 2. Repair or replace instrument panel | |||
| 4 | NIGHT OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that when the overtaking indicator is turned on and a hand is moved in front of the sensor in the door mirror with the vehicle travelling at more than 30 km/h and the side lights on, the indicator (LED) comes on and the buzzer buzzes. | Move on to Step | The overtaking indicator light (LED) and sound indicator (buzzer) are not activated. | Move on to Step | |
| 5 | SIDE LIGHT SIGNAL RECEPTION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check correct reception of the side light signal from the instrument panel at the overtaking sensor control unit connector See E3092 OVERTAKING SENSOR | Move on to Step | 1. Signal missing, fault in wiring. | 1. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |
| 2. Signal absent, fault in control panel system. | 2. Repair or replace the control panel system | |||
| 6 | OVERTAKING SENSOR CONTROL UNIT SUPPLY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check the overtaking sensor control unit supply See E3092 OVERTAKING SENSOR | Move on to Step | 1. No power supply, fuse blown | 1. Eliminate short circuits and then change fuse See E3092 OVERTAKING SENSOR | |
| 2. Control unit supply wiring fault | 2. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |||
| 7 | OVERTAKING SENSOR WARNING LIGHT OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check overtaking sensor warning light is working properly See E3092 OVERTAKING SENSOR | Move on to Step | 1. Fault in wiring | 1. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |
| 2. Overtaking indicator light (LED) does not activate | 2. Replace overtaking sensor indicator panel | |||
| 8 | OVERTAKING SENSOR AUDIBLE WARNING OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check continuity of the overtaking sensor audible warning connector/lead See E3092 OVERTAKING SENSOR | Move on to Step | 1. Fault in wiring. | 1. Repair or replace connector/lead See E3092 OVERTAKING SENSOR | |
| 2. Overtaking warning buzzer does not activate | 2. Replace overtaking sensor indicator panel | |||
| 9 | TV CAMERA OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check for faults in the connectors nearest to the TV camera (in the door mirror). See Test 5580HA CHECK OPERATION OF OVERTAKING SENSOR CONTROL UNIT MODULE | Move on to Step | 1. No power supply to TV camera. | Move on to Step | |
| 2. No TV image signal. | 2. Change the TV camera | |||
| 10 | OVERTAKING SENSOR CONTROL UNIT OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check overtaking sensor control unit connector voltages are correct See E3092 OVERTAKING SENSOR | Move on to Step | Overtaking sensor control unit fault. | Change the overtaking sensor control unit | |
| 11 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | Connect fault persists | Replace the connect unit | ||