|
Interrogating and erasing fault memory
Fault codes 00282 to 16502
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00515
|
|
|
|
|
Hall sender -G40
|
|
|
|
|
|
Short circuit to earth
|
- Short to earth in wiring
- between Hall sender -G40 and engine control unit
|
- No power at full throttle
- Emission values not OK
- High fuel consumption
|
- Rectify short circuit
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- -G40 defective
- Signal input in engine
- control unit faulty
- (control unit defective)
|
|
- Test -G40
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00515
|
|
|
|
|
Hall sender -G40
|
|
|
|
|
|
Open/short circuit to positive
|
- Open circuit or short circuit to positive in signal wire between Hall sender -G40 and engine control unit
|
- No power at full throttle
- Emission values not OK
|
- Rectify short circuit or open circuit
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- -G40 defective
- Phase window out of line
|
- High fuel consumption
|
- Test -G40
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00532
|
|
|
|
|
Supply voltage
|
|
|
|
|
|
Signal too great
|
- Supply voltage greater than 16 V
|
- Damage to engine control unit
|
- Check voltage
|
|
|
|
- Excess voltage from
- assisted start
- Defective alternator
|
|
- Read measured value block, Display Group 003, display zone 2
|
|
|
Signal too small
|
- Supply voltage less than 10 V
- Defective fuse
|
- Idling speed not within
- tolerances
|
- Check voltage supply to engine control unit
=> Page 28-15
Check fuse
|
|
|
|
- Poor earth connection to engine control unit
|
|
- Read measured value block, Display Group 003, display zone 2
=> Page 01-111
|
|
|
|
- Battery discharged
- Current drain when ignition is off
|
|
- Check battery charge level
|
Notes on fault code 00532:
-
◆ If the fault is shown as a sporadic fault, ignore the fault message on the display. This fault is often stored when the engine is left idling for a long period with a number of electrical consumers switched on and causing heavy discharging of the battery.
-
◆ The fault message "Signal too low" is stored if the supply voltage falls below 10.00 V for more than 1 second. (The control unit will not function at less than 6.5 V.)
-
◆ The unit does not check for low signals when the engine is being started since the voltage may fall below 10.00 V during starting.
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00543
|
|
|
|
|
Maximum revs
exceeded
|
|
|
|
|
|
|
- Engine over-revved
- (e.g. wrong gear engaged)
|
- Possible engine damage
|
- Rectify mechanical
damage
|
Notes on fault code 00543:
This fault message appears if the engine speed exceeds 7100 rpm.
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00561
|
|
|
|
|
Mixture adaptation
|
|
|
|
|
|
Adaption limit (add) exceeded
|
- Fuel system pressure too low
|
- Car may run jerkily
|
- Fill car up with petrol
and check fuel system
pressure => Page 24-15
|
|
|
Adaption limit (mul) exceeded
|
- Incorrect signal from air mass meter
|
- Increased fuel
- consumption
|
- Test air mass meter
=> Page 24-33
|
|
|
|
- Leaks in exhaust system before catalytic converter
|
|
- Repair leaks
|
|
|
|
- Unmetered air downstream of air mass meter
|
- Rough idling
|
|
|
|
|
- Carbon on injectors
|
|
- Check injection quantity
=> Page 24-19
|
Notes:
-
◆ (add) = additive, i.e. fault only occurs during idling
-
◆ (mul) = multiplicative, i.e. fault occurs over the entire engine speed range and at all throttle openings.
|
|
|---|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00561
|
|
|
|
|
Mixture adaptation
|
|
|
|
|
|
Adaption limit (add) not reached
|
- Fuel system pressure too high
|
- Car may run jerkily
|
- Fill up with petrol
and check fuel system
pressure => Page 24-15
|
|
|
Adaption limit (mul) not reached
|
- Incorrect signal from air mass meter
|
- Increased fuel
- consumption
|
- Test air mass meter
=> Page 24-33
|
|
|
|
- Fuel in engine oil (maybe from short journeys)
|
- Rough idling at times
|
- Take car for 15-minute run on motorway or change oil
Read measured block value, Display Group 008
=> Page 01-122
|
|
|
|
- Injectors leaking
|
- Black smoke, soot on spark plugs
|
- Check injection quantity
=> Page 24-19
|
Notes:
-
◆ (add) = additive, i.e. fault only occurs during idling
-
◆ (mul) = multiplicative, i.e. fault occurs over the entire engine speed range and at all throttle openings.
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
Signal too small
|
- Short to earth in signal wire between throttle valve positioner sender
- -G127 and engine control unit
|
- Idling speed positioner deactivated - engine
- idles with mechanically regulated air flow through the emergency running slot (slightly increased
- idling speed)
|
- Perform adaption of throttle valve control part => Page 24-73
|
|
|
|
Continued ▼
|
|
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
(Fault code 00670
continued)
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
|
- Fault in power supply to throttle valve positioner
|
- Load change jolt when easing off accelerator
|
|
|
|
|
- Defective throttle valve positioner
|
- AC compressor not
- activated at low engine speeds
|
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
Signal too great
|
- Open circuit or short to positive in signal wire
- between throttle valve positioner sender -G127 and engine control unit
|
- Idling speed positioner deactivated - engine
- idles with mechanically regulated air flow through the emergency running slot (slightly increased
- idling speed)
|
- Perform adaption of throttle valve control part => Page 24-73
|
|
|
|
Continued ▼
|
|
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
(Fault code 00670
continued)
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
Signal too great
|
- Defective earth connection to throttle valve positioner
|
- Load change jolt when easing off accelerator
|
|
|
|
|
- Defective throttle valve positioner
|
- AC compressor not
- activated at low engine speeds
|
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
Implausible signal
|
- Throttle valve jamming
|
- Idling speed positioner deactivated - engine
- idles with mechanically regulated air flow through the emergency running slot (slightly increased
- idling speed)
|
- Perform adaption of throttle valve control part => Page 24-73
|
|
|
|
Continued ▼
|
|
|
|
|
|---|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00670
|
(Fault code 00670
continued)
|
|
|
|
Throttle valve positioner sender -G127
|
|
|
|
|
|
Implausible signal
|
- Fault in wiring to throttle valve positioner
|
- Load change jolt when easing off accelerator
|
- Rectify open circuit or short circuit using current flow diagram
|
|
|
|
- Basic setting for throttle valve control part not
- performed
|
- AC compressor not
- activated at low engine speeds
|
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
Notes on fault code 00670:
-
◆ The throttle valve positioner sender is located in the throttle valve control part -J338.
-
◆ The sender is a potentiometer which signals the position of the throttle valve positioner to the control unit.
|
|
|---|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
00671
|
|
|
|
|
CCS Switch -E45
|
|
|
|
|
|
Undefined switch position
|
- Cruise control system switch -E45 defective
- Open circuit or short circuit in wiring
|
- Cruise control system switched off
|
- Test cruise control system
=> Electrical system; Repair group 96
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01119
|
|
|
|
|
Gear recognition signal
|
|
|
|
|
|
Open/short circuit to positive
|
- Open circuit or short to positive in signal wiring
- between engine control unit and multi-function switch -F125
|
- Brief and slightly more
- pronounced engine speed fluctuations than usual when engaging or
- disengaging gear
|
- Test wiring to multi-
function switch -F125
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- -F125 defective
|
|
- Interrogate fault memory for gearbox
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01119
|
|
|
|
|
Gear recognition signal
|
|
|
|
|
|
Short circuit to earth
|
- Short to earth in signal
- wiring between engine control unit and multi-
- function switch -F125
|
- Brief and slightly more
- pronounced engine speed fluctuations than usual when engaging or
- disengaging gear
|
- Test wiring to multi-
function switch -F125
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- -F125 defective (earth
- contact not broken when engaging gear)
|
|
- Interrogate fault memory for gearbox
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01120
|
|
|
|
|
Camshaft timing
control 1
|
|
|
|
|
|
Mechanical fault
|
- Fault in power supply to camshaft adjustment valve -N205
|
|
- Check camshaft
adjustment valve -N205
=> Page 28-31
|
|
|
|
- Open circuit / short to earth or positive in wiring between camshaft
- adjustment valve and
- engine control unit
|
- Lack of torque at lower end of engine speed range (1300 - 3600 rpm)
|
|
|
|
|
- Camshaft adjustment valve -N205 defective
|
|
|
|
|
|
- Mechanical camshaft
- adjuster defective
|
|
- Read measured value block, Display Group 025 or 026=> Page 01-143
Fit a new camshaft
adjuster
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01165
|
|
|
|
|
Throttle valve control part -J338
|
|
|
|
|
|
Regulating limit not reached
|
- Throttle valve jamming
- Positioner mechanism
- jamming
|
- Increased idling speed
|
- Read measured value block, Display Group 023
=> Page 01-140
|
|
|
Regulating limit
exceeded
|
- Fault (open circuit / short to positive or earth) in
- wiring to throttle valve positioner -V60
|
- Load change jolt when easing off accelerator
|
- Test throttle valve control part -J338 => Page 24-62
Test throttle valve control part -J338 (procedure for vehicles with cruise
control) => Page 24-73
|
|
|
Regulating difference
|
- Throttle valve positioner sender -G127 defective
- -V60 defective
|
|
|
|
|
|
- Faulty signal output in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
Note:
If fault code 01165 is stored in the fault memory, fault code 17953 will also be stored next time the engine is started.
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01182
|
|
|
|
|
Altitude adaption
|
|
|
|
|
|
Signal outside
tolerance
|
- Throttle valve potentiometer -G69 defective
|
- Difficult to start
- Poor acceleration
|
- Test throttle valve potentiometer -G69 => Page 24-81
|
|
|
|
- Incorrect throttle valve unit installed
|
- Difficult to pull away
|
- Check Part No.
|
|
|
|
- Unmetered air entering system
|
|
- Rectify leak
|
|
|
|
- Air cleaner obstructed
|
|
- Fit a new air cleaner
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01247
|
|
|
|
|
Activated charcoal filter solenoid valve 1 -N80
|
|
|
|
|
|
Short circuit to earth
|
- Short to earth between activated charcoal filter solenoid valve -N80 and engine control unit
- -N80 defective
|
- Car may run jerkily at part throttle
|
- Test -N80 => Page 24-58
|
|
|
Short circuit to
positive
|
- Short to positive between -N80 and engine control unit
- -N80 defective
|
- Car may smell of petrol
|
- Read measured value block, Display Group 010
=> Page 01-126
|
|
|
Output open
|
- Open circuit in wiring
- between -N80 and fuse
- Open circuit in wiring
- between -N80 and engine control unit
|
|
- Rectify open or short
circuit (see Current Flow Diagram)
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- Fuse defective
- -N80 defective
|
|
- Test fuse
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01249
|
|
|
|
|
No.1 cyl. injector -N30
|
|
|
|
|
|
Short circuit to earth
|
- Short to earth in wiring
- between injector and
- engine control unit
- Injector defective
|
- Engine runs unevenly or cuts out
|
- Test injectors
=> Page 24-24
|
|
|
Short circuit to
positive
|
- Short to positive in wiring between injector and
- engine control unit
- Injector defective
|
|
- Test fuse
|
|
|
Output open
|
- Open circuit in wiring
- between injector and
- engine control unit
- Fuse defective
- Open circuit in wiring
- between injector and fuse
- Injector defective
|
|
- Rectify short circuit or open circuit
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01250
|
|
|
|
|
No. 2 cyl. injector -N31
|
|
|
|
|
|
Short circuit to earth
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
|
|
Short circuit to
positive
|
|
|
|
|
|
Output open
|
|
|
|
|
01251
|
|
|
|
|
No. 3 cyl. injector -N32
|
|
|
|
|
|
Short circuit to earth
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
|
|
Short circuit to
positive
|
|
|
|
|
|
Output open
|
|
|
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01252
|
|
|
|
|
No. 4 cyl. injector -N33
|
|
|
|
|
|
Short circuit to earth
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
=> Cylinder 1, fault code 01249
|
|
|
Short circuit to
positive
|
|
|
|
|
|
Output open
|
|
|
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01259
|
|
|
|
|
Fuel pump relay -J17
|
|
|
|
|
|
Open/short circuit to earth
|
- Open circuit or short to earth between fuel pump relay -J17 and engine
- control unit
- Fault in power supply to
- -J17
- Fuel pump relay -J17
- defective
|
- Open circuit:
- engine will not run
- Short to earth: engine will continue to run normally but use more current with ignition on because relay is constantly picked up and fuel pump runs continuously, even when engine is not running
|
- Rectify open circuit or short circuit
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
Test fuel pump relay -J17 => Page 24-28
|
|
|
Short circuit to positive
|
- Short to positive in wiring between fuel pump relay -J17 and engine control unit
|
|
|
Note:
If fault code 01259 has been stored, fault codes 01247, 01249, 01250, 01251, 01252 or 17935 could also be stored, since the components to which they relate receive their power from the fuel pump relay.
|
|
|---|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
01314
|
|
|
|
|
Control unit defective
|
|
|
|
|
|
|
- Engine control unit
- defective
|
- Cruise control system not working
|
- Fit a new engine control unit => Page 24-10
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16486
|
|
|
|
|
Air mass meter -G70
|
|
|
|
|
|
Signal too small
|
- Unmetered air between air mass meter -G70 and
- engine
- Air cleaner obstructed
- Fault in power supply to
- -G70
|
- Emergency running mode (substitute value based on throttle angle and engine speed), so no noticeable effect on performance
|
- Locate and rectify leak
Fit a new filter element
Read measured value block, Display Group 002 => Page 01-108
|
|
|
|
- Open circuit or short to earth in signal wiring
- between -G70 and engine control unit
|
|
- Rectify short circuit or open circuit
=> Current Flow Diagrams, Electrical Fault-Finding & Fitting Locations
|
|
|
|
- -G70 defective
|
|
- Test -G70
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16487
|
|
|
|
|
Air mass meter -G70
|
|
|
|
|
|
Signal too great
|
- Short to positive in signal wire between air mass meter -G70 and engine control unit
|
- Emergency running mode (substitute value based on throttle angle and engine speed), so no noticeable effect on performance
|
- Read measured value block, Display Group 002 => Page 01-108
|
|
|
|
- Defective earth connection to -G70
|
|
|
|
|
|
- -G70 defective
|
|
- Test -G70 => Page 24-33
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16496
|
|
|
|
|
Intake air temperature sender -G42
|
|
|
|
|
|
Signal too small
|
- Short to earth in wiring
- between intake air
- temperature sender -G42 and engine control unit
|
- Emergency running mode - the display shows a
- substitute value calculated by the engine control unit
|
- Read measured value block, Display Group 003, display zone 4
=> Page 01-111
|
|
|
|
- -G42 defective
|
|
- Test -G42 => Page 28-7
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16497
|
|
|
|
|
Intake air temperature sender -G42
|
|
|
|
|
|
Signal too great
|
- Open circuit or short to positive in wiring between intake air temperature sender -G42 and engine control unit
|
- Emergency running mode - the display shows a
- substitute value calculated by the engine control unit
|
- Read measured value block, Display Group 003, display zone 4
=> Page 01-111
|
|
|
|
- -G42 defective
|
|
- Test -G42 => Page 28-7
|
|
|
|
- Defective earth connection to -G42
|
|
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16500
|
|
|
|
|
Coolant temperature sender -G62
|
|
|
|
|
|
Implausible signal
|
- Coolant temperature sender -G62 delivering an implausible signal because of a loose contact or
- corrosion (moisture) on
- connector plug
|
- Difficulty with cold
- starting, especially at
- very low temperatures
- Poor performance
- in warm-up phase
- Increased fuel
- consumption
- Increased emissions
|
- Read measured value block, Display Group 003
=> Page 28-12
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- Faulty signal input in
- engine control unit
- (control unit defective)
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|
- Fit a new engine control unit
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Note on fault code 16500:
The temperature curve between 20°C and 60°C is compared with a model temperature curve stored in the control unit. The model curve rises less sharply than the actual curve. If there is a fault which causes the actual temperature to rise too slowly, the real valueswill coincide with those in the model curve at a certain point. The engine control unitrecognisesthe fault as implausible.
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V.A.G 1551 print-out
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Possible causes of fault
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Possible effects
|
Fault remedy
|
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16501
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Coolant temperature sender -G62
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Signal too small
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- Short to earth in wiring
- between coolant temperature sender -G62 and
- engine control unit
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- Difficulty with cold
- starting, especially at
- very low temperatures
- Poor performance in warm-up phase
|
- Read measured value block, Display Group 003
|
|
|
|
- -G62 defective
|
- Increased fuel
- consumption
- Increased emissions
|
- Test -G62
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
|
V.A.G 1551 print-out
|
Possible causes of fault
|
Possible effects
|
Fault remedy
|
|
16502
|
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|
|
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Coolant temperature sender -G62
|
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Signal too great
|
- Open circuit or short to positive in wiring between coolant temperature sender -G62 and engine control unit
|
- Difficulty with cold
- starting, especially at
- very low temperatures
- Poor performance in warm-up phase
|
- Read measured value block, Display Group 003
=> Page 01-111
|
|
|
|
- -G62 defective
|
- Increased fuel
- consumption
|
- Test -G62
|
|
|
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- Defective earth connection to -G62
|
- Increased emissions
|
|
|
|
|
- Faulty signal input in
- engine control unit
- (control unit defective)
|
|
- Fit a new engine control unit
|
Note on fault codes 16500, 16501 and 16502:
If one of the above faults is detected, the control unit adopts a substitute value from the model curve stored in the control unit.
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