23 · Diagnostics

Overtaking device not working

Make: Fiat
Model: Ducato Factory Service Manual
Year: 2002–2006
Section: Radio and accessories etc. › Overtaking device not working

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Fault diagnosisOvertaking device not working

OVERTAKING DEVICE NOT WORKING

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.

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
		Move on to Step	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
		Move on to Step	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
		Move on to Step	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
		Move on to Step	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
		Move on to Step	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
		Move on to Step	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
		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

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Parts & tools for this job For 2002 Fiat Ducato

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