23 · Diagnostics

Tachograph not working

Make: Fiat
Model: Ducato Factory Service Manual
Year: 2002–2006
Section: Instrument panel › Tachograph not working

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Fault diagnosisTachograph not working

TACHOGRAPH NOT WORKING

At the key on, flashing messages appear on the tacograph display.

If the display is not on, this is due to problems with the tacograph control unit power supply.

The error code remains on the display until the cause that gave rise to the error is removed.

1	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for error codes that appear in the tables in the tacograph User Handbook.	Move on to Step 2	Error detected from error code	Correct operation restored
2	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "900A or 900B". (this error is suppressed for about 10 second after key ON). See Test 5560C OTHER INSTRUMENTS	Move on to Step 3	1. If error code 900A or 900B is present with no messages from the speedometer pulse generator controller", possible cause: wiring faults	1. Restore correct operation of speedometer pulse generator power supply/wiring. See E4025 TACHOGRAPH
			2. If error code 900A or 900B is present with no messages from the speedometer pulse generator controller", possible cause: errors in the speedometer pulse generator	2. replace the speedometer pulse generator. See E4025 TACHOGRAPH
			3. If error code 900A or 900B is present with no messages from the speedometer pulse generator controller", possible cause: protocol error/terminal resistance not present	3. Restore terminal resistance connection.
3	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "900F2.	Move on to Step 4	1. Error code 900F found, possible cause: button pressed for too long	1. Restore the button to correct operation.
		Move on to Step 4	2. Error code 900F found, possible cause: error repeated or button blocked.	2. Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
4	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9010" (control defective and/or incorrect, LCD error).	Move on to Step 5	Error code 9010 found to be repeated.	Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
5	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9051 or 9052" (Driver tacograph disc missing or different time unit).	Move on to Step 6	1. Error code 9051 or 9052 found, possible cause: tachograph disc of driver 1 or 2 missing	1. Insert tachograph disc of driver 1 or 2
		Move on to Step 6	2. the working hours unit has not been switched to another working timetable unit.	2. set the correct working hours unit corresponding to driver 1 or 2.
6	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9053 or 9064" (the tachograph detected a difference of more than 2 minutes between the time shown on the display and the tacograph disc insertion time).	Move on to Step 7	1. Error code 9053 or 9064 found, possible cause: tachograph disc incorrectly positioned.	1. With the vehicle at a standstill and the engine running, remove the tachograph discs inserted and close the disc holder cassette.
		Move on to Step 7	2. Error code 9053 or 9064 found, possible cause: fault repeated.	2. Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
7	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9060" (Error in handling disc holder cassette).	Move on to Step 8	1. Error code 9060 found, possible cause: tachograph disc/discs not inserted correctly or damaged. An object may be exercising pressure on the lower side of the tachograph case.	1. Restore the disc holder cassette to correct working order and/or position the tachograph discs correctly.
		Move on to Step 8	2. Error code 9060 found, possible cause: mechanical impediment to opening of the tacograph disc holder cassette.	2. Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
8	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9061" or 9062".	Move on to Step 9	Fault found in disc writing system, error code 9061 or 9062.	Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
9	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9063" (Check that damaged tachograph discs have not been used).	Move on to Step 10	1. Error found in disc writing system, error code 9063, possible cause: damaged tachograph disc graphic recorder error	1. Restore the tachograph discs to proper working order.
		Move on to Step 10	2. Error found in disc writing system, error code 9063, possible cause: graphic recorder error 182 A88 repeated	2. Replace tachograph Op. 5560C22 TACHOGRAPH - R.R.
10	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "9430" (anomaly in speed information exchanged between tachograph and control panel). See Test 5560C OTHER INSTRUMENTS	Move on to Step 11	1. Fault found in vehicle speed transmission, error code 9430, possible cause: fault in wiring between tachograph and control panel.	1. Restore the wiring between the tachograph and control panel to correct working order. See E4025 TACHOGRAPH
			2. Fault found in vehicle speed transmission, error code 9430, possible cause: fault in vehicle speed display on control panel	2. replace control panel Op. 5560B10 ANALOGUE CONTROL PANEL - R+R
			3. Fault found in vehicle speed transmission, error code 9430, possible cause: fault at tachograph "B7 pulse" output	3. replace the tachograph. Op. 5560C22 TACHOGRAPH - R.R. If necessary, replace the damaged components.
11	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "A00C" (defective communication between internal components).	Move on to Step 12	Internal error found, error code A00C	Replace tachograph Op. 5560C22 TACHOGRAPH - R.R.
12	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "A050" (tachograph detected vehicle in motion without tachograph disc).	Move on to Step 13	1. Fault detected in vehicle motion without tachograph disc error, error code A050, possible cause: tachograph disc not present	1. Insert tachograph disc correctly, the display shows cassette closure and then working unit closure.
		Move on to Step 13	2. Fault detected in vehicle motion without tachograph disc error, error code A050, possible cause: tachograph disc is inserted and error persists.	2. replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
13	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "A400" (tachograph power supply not within specified levels).	Move on to Step 14	Power supply fault detected, error code A400, tachograph power cut or voltage surge.	Restore correct power supply (false wiring contacts). See E4025 TACHOGRAPH
14	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "A411" (no communication between tachograph and tachograph control panel or cable non-compliant).	Move on to Step 15	1. Error code A411 detected, fault in communication between tachograph and control panel, possible cause: non-compliant wiring between tachograph and control panel.	1. Restore the wiring between the tachograph and control panel to correct working order. See E4025 TACHOGRAPH
			2. Error code A411 detected, fault in communication between tachograph and control panel, possible cause: fault in control panel	2. replace control panel Op. 5560B10 ANALOGUE CONTROL PANEL - R+R
			3. Error code A411 detected, fault in communication between tachograph and control panel, possible cause: fault at tachograph "B7 pulse" output.	3. replace the tachograph Op. 5560C22 TACHOGRAPH - R.R. If necessary, replace the damaged components.
15	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code A423 (check recording/writing on tachograph discs).	Move on to Step 16	1. Error code A423 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: non-compliant wiring between tachograph and speedometer pulse generator.	1. Restore the wiring between the tachograph and the speedometer pulse generator to correct working order. See E4025 TACHOGRAPH
			2. Error code A423 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: fault in speedometer pulse generator	2. replace the speedometer pulse generator. See E4025 TACHOGRAPH
			3. Error code A423 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: fault at tachograph "B4 pulse" input.	3. replace the tachograph. Op. 5560C22 TACHOGRAPH - R.R.
16	CHECK ON ERROR TYPE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	With the vehicle at a standstill and key ON, when the "M" key on the tachograph is pressed twice briefly. Check for error code "A822" ("B3" pulse comparison incorrect or unexpected transducer reset [voltage drop in speedometer pulse generator power supply for 100 ms]).	Move on to Step 17	1. Error code A822 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: non-compliant wiring between tachograph and speedometer pulse generator.	1. Restore the wiring between the tachograph and the speedometer pulse generator to correct working order. See E4025 TACHOGRAPH
			2. Error code A822 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: fault in speedometer pulse generator	2. replace the speedometer pulse generator. See E4025 TACHOGRAPH
			3. Error code A822 detected, fault in communication between tachograph and tachograph pulse generator, possible cause: fault at tachograph "B3 pulse" input.	3. replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.
17	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists	Replace the tachograph Op. 5560C22 TACHOGRAPH - R.R.

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