SEAT Workshop Service and Repair Manuals

Fault reference table

t	The fault reference table is arranged according to the 5 digit fault indications appearing in the left hand side column.

t	Explanations relating to the types of fault (for example: “Interruption/short circuit to earth”): → Fault reader operating instructions

t	If components are identified as being faulty: First verify the cables and connectors to and from these components as well as the earth cables according to the current circuits. This step is especially important in cases when the faults are identified as being “sporadic” (SP).

t	Following the elimination of faults, the fault memory should be erased.

Message printed by the printer of the -V.A.G 1551-	Possible cause of the fault	Fault elimination
No fault recognised	If there is a complaint: Self-diagnosis does not detect the problem	Continue fault finding according to the table included in the folder “Fault finding, engine”

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00281
Road speed sender -G68-
		No signal	t  Speedometer -G21- faulty	–  Verification of the velocity signal → Chapter
			t  Cable fault
			t  If there is no indication in the speedometer: Speedometer sender -G22- faulty	–  Continue the fault finding according to the MFI included in the folder → Current flow diagrams, Electrical fault finding and Fitting locations.
00282
Throttle actuator -V60-			t  Cable fault	–  Verification -V60- → Chapter
		Implausible signal	t  -V60- faulty

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00515
Hall sender -G40-			t  -G40- faulty	–  Verification -G40- → Chapter
		No signal	t  Cable fault
00516
Idle switch -F60-			t  -F60- faulty, remains closed	–  Verification -F60- → Chapter
		Short circuit to earth	t  There is a cable short circuit to earth
		Open/short circuit to positive	t  -F60- faulty, remains open	–  Verification -F60- → Chapter
			t  Open circuit
			t  Accelerator cable, incorrect adjustment	–  Adjust the accelerator cable → Rep. Gr.20

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00518
Throttle potentiometer -G69-
		Short circuit to earth	t  There is a short circuit to earth in the -G69- or the cables	–  Verification -G69- → Chapter
		Open/short circuit to positive	t  Open circuit/cable interruption
			t  -G69- faulty
		Open/short circuit to earth	t  Open circuit/cable interruption
			t  -G69- faulty
		Short circuit to positive	t  Open circuit/cable interruption
			t  -G69- faulty
		Implausible signal	t  -G69- faulty

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00522
Coolant temperature sender -G62-			t  -G62- faulty	–  Verification -G62- → Chapter
		Short circuit to earth	t  There is a cable short circuit to earth
		Open/short circuit to positive	t  -G69- faulty
			t  Open circuit/cable interruption
		Implausible signal	t  -G69- faulty
00523
Inlet air temperature sender -G42-			t  -G42- faulty t	–  Verification -G42- → Chapter
		Short circuit to earth	t  There is a cable short circuit to earth
		Open/short circuit to positive	t  -G42- faulty
			t  Open circuit/cable interruption

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00525
Lambda probe -G39-			t  -G39- faulty	–  Verification of the lambda probe and lambda regulation → Chapter
		No signal	t  Open circuit/cable interruption
		Short circuit to earth	t  -G39- faulty
			t  There is a cable short circuit to earth
		Short circuit to positive	t  -G39- faulty
			t  There is a cable short circuit to positive
00532
Supply voltage → Note
		Signal too low	t  Battery voltage at less than 10.0 V	–  Test battery

1)	Fault identification: Monomotronic control unit -J257- verifies the voltage supply following 3 minutes of engine operation.

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00537
Lambda regulation → Note			t  Heating of faulty lambda probe	–  Test the supply voltage for the probe heating → Chapter
		Above the regulation limit		–  Verify the continuity of the lambda probe heat conduction
			t  Exhaust system not airtight between the cylinder head and the catalytic converter	–  Verify the exhaust system
			t  Ignition faults	–  Verification of the ignition system components → Chapter
			t  Fuel pressure, insufficient	–  Verify the fuel pressure regulator → Chapter
		Below the regulation limit	t  Fuel pressure, excessive
			t  Solenoid valve 1 for the active carbon filter -N80-, not airtight or blocked	–  Verification -N80- → Chapter; Actuator diagnostics

2)	Once the problem has been eliminated, the adaptive values of the engine control unit must be erased → Chapter; Adaptive values of the engine electronics control unit: erasing

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
00561
Mixture adaptation → Note			t  Fuel pressure, incorrect	–  Verify the fuel pressure regulator → Chapter
		Above the adaptation limit	t  Ignition faults	–  Verification of the ignition system components → Chapter
		Below the adaptation limit	t  Exhaust system not airtight between the cylinder head and the catalytic converter	–  Verify the exhaust system
00670
Throttle actuator sender -G127-			t  -G127- faulty	–  Verification -G127- → Chapter
		No signal	t  Open circuit/cable interruption

3)	Once the problem has been eliminated, the adaptive values of the engine control unit must be erased → Chapter; Adaptive values of the engine electronics control unit: erasing

Message printed by the printer of the -V.A.G 1551-			Possible cause of the fault	Fault elimination
17978
Engine control unit, stopped			t  The electronic immobiliser control unit -J362- has stopped the engine control unit	–  Adapting the engine electronics control unit to the electronic immobiliser –  Verification of the electronic immobiliser
				→ Rep. Gr.96 –  Then, start the engine and erase the fault memory of the engine control unit
65535
Control unit defective			t  Engine control unit components	–  Replace the engine control -J257-