|
Performing self-diagnosis
Test table
|
|
|---|
|
Display Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
001
|
1
|
Selector lever position - Multi-function switch -F125-
|
Stationary
|
P
|
P
|
- Check multi-function switch -F125- => Perform electrical tests, from page 01-73
|
|
|
|
|
|
Selector
|
R
|
R
|
|
|
|
|
|
|
lever
|
N
|
N
|
|
|
|
|
|
|
in
|
D
|
D
|
|
|
|
|
|
|
|
3
|
3
|
- Check and adjust selector lever cable
|
|
|
|
|
|
|
2
|
2
|
=> Repair group 37
|
|
cont'd
|
|
|
|
|
1
|
1
|
|
|
|
|---|
|
Display Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
001
|
2
|
Throttle valve potentiometer voltage -G69-
|
Idling min.
Idling max.
▪ Engine switched off
▪ Ignition switched on
|
0.156 V
0.8 V1)
|
When accelerating from idling to full throttle, voltage figure constantly increases
On vehicles with 6-cyl. engine, TDI engine or 4-cyl. engine with Simos injection and ignition system carry out a self-diagnosis on engine control unit2)
Check throttle valve potentiometer => Perform electrical check,from Page 01-73
|
|
cont'd
|
|
|
|
Full throttle
min.
Full throttle max.
|
3.5 V
4.680 V
|
- Adjusting/renewing throttle valve potentiometer
=> Repair group 24 to 2501-48
|
1)
Engine with Mono Motronic coolant temperature min. 80° C.
2)
On these vehicles the signal from throttle valve potentiometer -G69- is directed via engine control unit to gearbox control unit
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
001
|
3
|
Accelerator pedal value
|
Stationary
|
Idling1)
|
0...1 %
|
When accelerating from idling to full throttle, % figure constantly increases
|
|
|
|
|
|
|
Full throttle
|
99...100 %
|
- Bring system into basic setting
|
|
|
4
|
Switch positions
|
|
|
|
|
|
|
|
Brake light switch -F-
|
Display
1
|
Brake
|
Operated
|
1
|
- Check brake light switch -F- => Perform electrical tests,from page 01-73
|
|
|
|
|
|
|
Not operated
|
0
|
|
|
|
|
|
Traction control system
|
2
|
|
Activated
|
1
|
|
Only Audi vehicles
|
|
cont'd
|
|
|
|
|
Not activated
|
0
|
|
|
1)
Engine with Mono Motronic coolant temperature min. 80° C.
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
001
|
4
|
|
3
|
Can be disregarded
|
|
|
|
Kickdown switch
|
Display 4
|
Kickdown
|
Operated
|
1
|
- Check kickdown switch =>Perform electrical check, from page 01-73
|
|
|
|
|
|
|
Not operated
|
0
|
|
|
|
|
|
Multi-function switch -F125-
|
5
|
Selector lever in
|
R, N, D, 3, 2
|
1
|
- Check multi-function switch -F125- => Perform electrical tests, from page 01-73
|
|
|
|
|
|
|
P, 1
|
0
|
|
|
|
|
|
6
|
Selector lever in
|
P, R, 2, 1
|
1
|
|
|
|
cont'd
|
|
|
|
|
N, D, 3
|
0
|
|
|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
001
|
4
|
Multi-function switch -F125-
|
Display
7
|
Selector lever in
|
P, R, N, D
|
1
|
- Check multi-function switch -F125- => Perform electrical tests, from page 01-73
|
|
|
|
|
|
|
3, 2, 1
|
0
|
|
|
|
|
|
|
8
|
Selector lever in
|
P, R, N,
|
1
|
|
|
|
|
|
|
|
|
D, 3, 2, 1
|
0
|
|
|
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
002
|
1
|
Solenoid valve 6 -N93- actual current
|
▪ Selector lever in "N"
▪ Stationary
Full throttle
|
0.0 A
|
Note the following when fault finding: Actual current and specified current must not deviate more than 0.050 A from one another.
|
|
|
|
|
|
Idling max.
|
1.1 A
|
The specifications shown here are the maximum values.
|
|
|
2
|
Solenoid valve 6 -N93- specified current
|
▪ Selector lever in "N"
▪ Stationary
Full throttle
|
0.0 A
|
Bring system into basic setting
|
|
|
|
|
|
Idling max.
|
1.1 A
|
- Check solenoid valve -N93- => Perform electrical check, from Page 01-73
|
|
|
3
|
Battery voltage
|
Stationary
|
min.
|
10.8 V
|
- Check battery, renew if necessary
Check voltage supply to control unit -J217- => Perform electrical check, from page 01-73
|
|
Cont'd
|
|
|
|
max.
|
16.0 V
|
|
- Renew gearbox control unit -J217-
|
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
002
|
4
|
Road speed sender
-G68-
|
Stationary
|
min.
|
2.20 V
|
- Check road speed sender -G68- =>Perform electrical check, from page 01-73
|
|
|
|
|
|
max.
|
2.52 V
|
|
|
|
003
|
1
|
Vehicle speed
|
Driving1)
|
...km/h
|
Speedometer reading and readout on V.A.G 1551 may differ slightly.
|
|
Cont'd
|
2
|
Engine speed
|
With engine running
|
rpm
|
- Tune engine if necessary
|
1)
When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
003
|
3
|
Gear selected
|
Driving1)
|
Neutral
|
0
|
- Check solenoid valves => Perform electrical check, from page 01-73
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
1 hydraulic
|
1
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
|
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3 H
|
|
|
|
|
|
|
|
|
3 mechanical
|
3M
|
|
|
|
|
|
|
|
|
4 hydraulic
|
4H
|
|
|
|
|
|
|
|
4 mechanical
|
4
|
|
|
|
|
4
|
Accelerator pedal value
|
Driving1)
|
Idling
|
0...1 %
|
When accelerating from idling to full throttle, % figure constantly increases
|
|
|
|
|
|
Full throttle
|
99...100 %
|
- Bring system to basic setting
|
1)
When driving, a second mechanic is needed for reading the specified values.
Reading measured value block; Display group number 004; "Checking solenoid valves whilst driving"
-
◆ The solenoid valves can be checked whilst driving via "Read measured value block 08"; "display group number 004".
-
◆ The table shows the solenoid valves -N88-, -N89- and -N90- as activated in each selector lever position. These solenoid valves control the switching valves to the relevant gears.
-
◆ The solenoid valve -N91- activates the lock-up clutch modulation valve and is not covered here.
-
◆ The solenoid valves -N92- and -N94- are supplementary valves which affect selection changes and are only controlled during gear changes and displayed in zones 5 and 6.
-
◆ V.A.G 1551 display zone 1 has 6 characters (0000 00) and is read as follows:
|
Display on
|
Display zone 1:
|
|
V.A.G 1551
|
Display 1
|
Display 2
|
Display 3
|
Display 4
|
Display 5
|
Display 6
|
|
|
Solenoid valve 1
|
Solenoid valve 2
|
Solenoid valve 3
|
Solenoid valve 4
|
Solenoid valve 5
|
Solenoid valve 7
|
|
1551
|
-N88-
|
-N89-
|
-N90-
|
-N91-
(can be disregarded)
|
-N92-
|
-N94-
|
-
◆ Non-activated solenoid valves display "0" and activated solenoid valves display "1".
-
◆ All solenoid valves are checked via self-diagnosis => Interrogating fault memory, Page 01-29
.
Checking solenoid valves, whilst driving
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
Selector lever in:
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
004
|
1
|
Solenoid valves/indicated on
|
|
P
|
1 0 1 0 00
|
Solenoid valves are selected according to driving condition
|
|
|
|
V.A.G 1551 display
|
|
R1)
|
0 0 1 0 00
|
- Perform
|
|
|
|
|
|
N
|
1 0 1 0 00
|
|
electrical check
|
|
|
|
-N88- Display 1
|
D1)
|
1H
|
0 0 1 0 00
|
|
=>from page 01-73
|
|
|
|
-N89- Display 2
|
|
1M
|
0 0 1 0 00
|
- Continue fault finding according to fault finding programme
|
|
|
|
-N90- Display 3
|
|
2H
|
0 1 1 0 00
|
|
|
|
|
|
-N91- Display 4
|
|
2M
|
0 1 1 0 00
|
=> "Fault finding.
|
|
|
|
-N92- Display 5
|
|
3H
|
0 0 0 0 01
|
|
Power transmission"; No. 14
|
|
|
|
-N94- Display 6
|
|
3M
|
0 0 0 0 01
|
|
|
|
|
|
|
4H
|
1 1 0 0 01
|
|
|
continued
|
|
|
4M
|
1 1 0 0 01
|
|
1)
Whilst driving with gears selected a second mechanic is required for reading the specified values.
|
Group No.
|
Display zone
|
Designation
|
Test conditions
Selector lever in:
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
004
|
1
|
Solenoid valves/indicated on
|
31)
|
1H
|
0 0 1 0 00
|
Solenoid valves are selected according to driving condition
|
|
|
|
V.A.G 1551:
|
|
1M
|
0 0 1 0 00
|
- Perform
|
|
|
|
-N88- Display 1
|
|
2H
|
0 1 1 0 00
|
|
electrical check
|
|
|
|
-N89- Display 2
|
|
2M
|
0 1 1 0 00
|
=>from page 01-73
|
|
|
|
-N90- Display 3
|
|
3H
|
0 0 0 0 01
|
|
- Continue fault finding according to
|
|
|
|
-N91- Display 4
|
|
3M
|
0 0 0 0 01
|
|
fault finding programme
|
|
|
|
-N92- Display 5
|
21)
|
1H
|
0 0 1 0 00
|
|
=>"Fault finding.
|
|
|
|
-N94- Display 6
|
|
1M
|
0 0 1 0 00
|
Power transmission"; No. 14
|
|
|
|
|
|
2H
|
0 1 1 0 00
|
|
|
|
|
|
|
|
2M
|
0 1 1 0 00
|
|
|
|
|
|
11)
|
1H
|
0 0 1 0 00
|
|
|
|
|
|
|
|
1M
|
0 0 1 0 00
|
|
1)
Whilst driving with gears selected a second mechanic is required for reading the specified values.
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
004
|
2
|
Gear selected
|
Driving1)
|
Neutral
|
0
|
- Check solenoid valves => Perform electrical check, from page 01-73
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
1 hydraulic
|
1
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
|
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3 H
|
|
|
|
|
|
|
|
|
3 mechanical
|
3M
|
|
|
|
|
|
|
|
|
4 hydraulic
|
4H
|
|
|
|
cont'd
|
|
|
|
4 mechanical
|
4M
|
|
|
1)
When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
004
|
3
|
Selector lever position
|
Driving1)
|
P
|
P
|
- Check multi-function switch -F125- => Perform electrical tests,from page 01-73
|
|
|
|
|
|
|
R
|
R
|
|
|
|
|
|
|
|
N
|
N
|
|
|
|
|
|
|
|
D
|
D
|
|
|
|
|
|
|
|
3
|
3
|
- Check and adjust selector lever cable
|
|
|
|
|
|
|
2
|
2
|
=> Repair group 37
|
|
cont'd
|
|
|
|
|
1
|
1
|
|
1)
When driving, a second mechanic is needed for reading the specified values.
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
004
|
4
|
Vehicle speed
|
Speed at which vehicle is driven1)
|
...km/h
|
The speedometer reading and readout on V.A.G 1551 may differ slightly
|
|
005
|
1
|
ATF temperature, ATF level is checked at approx. 35°C - 45°C
|
Stationary with engine running. The exact temperature is displayed from approx. 30°C
|
...°C
|
- Check gearbox oil temperature sender -G93- => Perform electrical check, from page 01-73
|
|
|
2
|
Selector outputs
|
Driving1)
Ignition timing influence (only operative whilst changing gears)
|
|
- Check wiring according to current flow diagram
|
|
|
|
|
Display 12)
|
is switched on
|
1
|
- Renew engine control unit if necessary
|
|
|
|
|
|
is switched off
|
0
|
- Renew gearbox control unit -J217- => Page 01-9
|
|
|
|
|
22)
|
was switched on
|
1
|
- Bring system in basic setting
|
|
cont'd
|
|
|
was switched off
|
0
|
|
1)
When driving, a second mechanic is needed for reading the specified values.
2)
V.A.G 1551 must always show the same number "1" or "0" in displays 1 and 2.
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified read out V.A.G 1551
|
Rectifying fault
|
|
005
|
2
|
Selector outputs
|
Selector lever lock solenoid -N110-
|
|
- Check wiring on basis of current flow diagram
|
|
|
|
|
Display 3
|
|
is
switched on
|
1
|
- Check selector lever lock solenoid -N110- => Perform electrical check, from page 01-73
|
|
|
|
|
|
|
is
switched off
|
0
|
|
|
|
|
|
4
|
|
switched on
|
1
|
|
|
|
|
|
|
|
switched off
|
0
|
|
|
|
|
|
|
Cruise control system
|
|
- Check wiring on basis of current flow diagram
|
|
|
|
|
5
|
|
switched on
|
1
|
- Check cruise control system
=> binder "Current flow diagrams, Electrical fault finding and Fitting locations
=> Golf 1992 ▸, Vento 1992 ▸"
|
|
cont'd
|
|
|
|
|
switched off
|
0
|
|
|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
05
|
2
|
Selector outputs
Display 6
|
Air conditioner
|
was switched off
|
1
|
Check routing of wiring on basis of current flow diagram
|
|
|
|
|
|
|
was not
switched off
|
0
|
- Check air conditioner
|
|
|
|
|
7
|
Park/Neutral signal
Selector lever in
|
|
- Check wiring on basis of current flow diagram
|
|
|
|
|
|
|
P, N
|
1
|
|
|
|
|
|
|
|
|
R
|
0
|
|
|
cont'd.
|
|
|
|
|
D, 3, 2, 1
|
1 / 0
|
Selector lever positions D, 3, 2, 1 can be disregarded
|
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
05
|
3
|
Gear to select
|
Driving1)
|
Neutral
|
0
|
- Check solenoid valves => Perform electrical tests, from page 01-73
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
|
1 hydraulic
|
1H
|
- If gearshifts do not occur, a clutch or brake may be defective
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
=> "Fault finding" binder, Power transmission, No. 14
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3 H
|
- Renew gearbox control unit -J217- => page 01-9
|
|
|
|
|
|
|
3 mechanical
|
3M
|
|
|
|
|
|
|
|
|
4 hydraulic
|
4H
|
|
|
|
|
|
|
|
4 mechanical
|
4
|
|
|
|
|
4
|
Engine speed
|
Driving1)
with engine running
|
rpm
|
- Tune engine if necessary
|
1)
When driving, a second mechanic is needed for reading the specified values.
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
006
|
Can be disregarded
|
|
007
|
1
|
Gear selected1)
|
|
Neutral
|
0
|
- Check solenoid valves => perform electrical check, from page 01-73
|
|
|
|
|
|
Reverse
|
R
|
- If gearshifts do not occur, a clutch or brake may be defective
|
|
|
|
|
|
|
1 hydraulic
|
1H+/-
|
=> "Fault finding" binder, Power transmission, No. 14
|
|
|
|
|
|
|
1 mechanical
|
1M+/-
|
- Replace gearbox control unit -J217- => Page 01-9
|
|
|
|
|
|
|
2 hydraulic
|
2H +/-
|
Note:
|
|
|
|
|
|
|
2 mechanical
|
2M +/-
|
The + (or -) sign
|
|
|
|
|
|
3 hydraulic
|
3 H +/-
|
relates to the
|
|
|
|
|
|
|
3 mechanical
|
3M +/-
|
speed information
|
|
|
|
|
|
|
4 hydraulic
|
4H +/-
|
In display zone 2.
|
|
cont'd
|
|
|
|
4 mechanical
|
4M +/-
|
|
1)
When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Group No.
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
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Rectifying fault
|
|
007
|
2
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Torque converter lock-up clutch slip
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Whilst driving1)
with engine running
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In the hydraulic gears2)
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0 ... stall speed
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- Check wiring according to current flow diagram
|
|
|
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Solenoid valve 4 -N91- is activated
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Torque converter lock-up clutch closed
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Engine speed: 2000 ... 3000 rpm in the mechanical gears
3)
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0 ... 130
rpm
|
- Check solenoid valves 4 -N91- => Perform electrical checks, from page
|
1)
When driving, a second mechanic is needed for reading the specified values.
2)
The torque converter lock-up clutch must be open!
It is open when in display zone 1 "H" = hydraulic with slip is displayed. Additionally the character "+ or -" is displayed. "+" signifies that the engine speed (pump speed) is greater than turbine speed, vehicle under traction.
"-" signifies that the engine speed is less than turbine speed, vehicle in overrun.
3)
The gear shift must be completed. The torque converter lock-up clutch must be closed and the accelerator pedal value held constant (gears will be mechanically activated "M").
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Group No.
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Display zone
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Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault
|
|
007
|
3
|
Engine speed
|
With engine running
|
... rpm
|
- If necessary tune engine
|
|
|
4
|
Accelerator pedal value
|
|
Idling
|
0...1 %
|
When accelerating from idling to full throttle the percentage value constantly increases
|
|
|
|
|
|
|
Full throttle
|
99...100 %
|
- Bring system into basic setting
|
|
008
|
Can be disregarded
|
|
