|
Performing self-diagnosis
Test table
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
001
|
1
|
Selector lever position - Multi-function switch -F125-
|
Stationary
|
P
|
P
|
- Check multi-function switch -F125- =>electrical tests from Page 01-101
|
|
|
|
|
|
Selector
|
R
|
R
|
|
|
|
|
|
|
lever
|
N
|
N
|
|
|
|
|
|
|
in
|
D
|
D
|
|
|
|
|
|
|
|
3
|
3
|
|
|
|
|
|
|
|
2
|
2
|
|
|
continued
▼
|
|
|
|
|
1
|
1
|
|
1) Coolant temperature at least 80°C.
2) Throttle valve potentiometer -G69- is incorporated in throttle valve control part -J338-. If throttle valve potentiometer -G69- is defective, throttle valve control part -J338- must be renewed.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
001
|
2
|
Signal voltage of throttle valve potentiometer -G69- or throttle valve control part -J338-
|
Stationary
|
Idling (min.)
Idling (max.)
|
0.156 V
0.8 V 1)
|
- Check throttle valve control part -J338- and renew if necessary
|
|
continued
▼
|
|
|
|
Full throttle (min.)
Full throttle (max.)
|
3.5 V
4.68 V
|
- After renewing throttle valve potentiometer or throttle valve control part, bring system into basic setting
|
1) Coolant temperature at least 80°C.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
001
|
3
|
Accelerator pedal value
|
Stationary
|
Idling
|
0...1 %
|
When accelerating from idling to full throttle, % figure increases continuously
|
|
|
|
|
|
|
Full throttle
|
99...100 %
|
- Bring system into basic setting
|
|
|
4
|
Switch positions 1)
|
|
|
|
|
|
|
|
Brake light switch
-F-
|
Display
1
|
Brake
|
Operated
|
1
|
- Check brake light switch -F- => Perform electrical tests,from Page 01-101
|
|
|
|
|
|
|
Not operated
|
0
|
|
|
|
|
|
Traction control
|
2
|
|
Activated
|
1
|
- Check wiring according to CFD if necessary
|
|
|
continued
▼
|
system (ASR)
|
|
|
Not activated
|
0
|
=> "Current flow diagrams, Electrical fault finding and Fitting locations" binder
|
1) The readout on V.A.G 1551 in display zone 4 comprises 8 digits, e.g. 10000111. The first digit from the left (display 1) refers to brake light switch -F-. The second digit from the left (display 2) refers to the traction control system (ASR), and so on.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
001
|
4
|
|
3
|
Can be disregarded
|
|
|
|
Kickdown switch
|
Display
4
|
Kickdown
|
Operated
|
1
|
- Check kickdown switch -F8 =>Perform electrical test, from Page 01-101
|
|
|
|
-F8
|
|
|
Not operated
|
0
|
|
|
|
|
|
Multi-function switch
|
5
Contact
63 2)
|
Selector lever in
|
R, N, D, 3, 2
|
1
|
- Check multi-function switch -F125- => Perform electrical tests, from Page 01-101
Adjust selector lever cable 1)
|
|
|
|
-F125-
|
|
|
P, 1
|
0
|
=> Automatic Gearbox 01N; Repair Group 37; Repairing shift mechanism; Removing, installing and adjusting selector lever cable
|
|
|
con-
|
|
6
|
Selector lever in
|
P, R, 2, 1
|
1
|
- Pull out starter inhibitor and reversing light relay -J226- and check readout again
|
|
|
tinued
▼
|
|
Contact
40 2)
|
|
N, D, 3
|
0
|
- Check wiring and components as necessary according to CFD
|
1) This repair measure is only effective if selector lever position does not agree with selector lever position indicator.
2) Designation of signal input contact on gearbox control unit -J217-.
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
001
|
4
|
Multi-function switch
|
Display
7
|
Selector lever in
|
P, R, N, D
|
1
|
- Check multi-function switch -F125- => Perform electrical tests, from Page 01-101
Adjust selector lever cable 1)
|
|
|
|
-F125-
|
Contact
62 2)
|
|
3, 2, 1
|
0
|
=> Automatic Gearbox 01N; Repair Group 37; Repairing shift mechanism; Removing, installing and adjusting selector lever cable
|
|
|
|
|
8
|
Selector lever in
|
P, R, N
|
1
|
- Pull out starter inhibitor and reversing light relay -J226- and check readout again
|
|
|
|
|
Contact
18 2)
|
|
D, 3, 2, 1
|
0
|
- Check wiring and components as necessary according to CFD
|
1) This repair measure is only effective if selector lever position does not agree with selector lever position indicator.
2) Designation of signal input contact on gearbox control unit -J217-.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
002
|
1
|
Solenoid valve 6 -N93- actual current
|
▪ Selector lever in "N"
▪ Stationary
Full throttle
|
0.0 A
|
Note when fault finding: the difference between actual current and specified current must not be more than 0.050 A
|
|
|
|
|
|
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
|
|
con-
tinued
▼
|
|
|
|
Idling max.
|
1.1 A
|
- Check solenoid valve -N93- => Perform electrical tests, from Page 01-101
|
1) Solenoid valve 6 -N93- controls the ATF main pressure.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
002
|
3
|
Battery voltage
|
Stationary
|
min.
|
10.8 V
|
- Check battery, renew if necessary
Check voltage supply to control unit -J217- => Perform electrical tests, from Page 01-101
|
|
|
|
|
|
max.
|
16.0 V
|
- Renew gearbox control unit -J217-
|
|
|
4
|
Road speed sender
-G68-
|
Stationary
|
min.
|
2.20 V
|
- Check road speed sender
-G68- =>Perform electrical tests, from Page 01-101
|
|
|
|
|
|
max.
|
2.52 V
|
|
|
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
003
|
1
|
Vehicle speed
|
Driving1)
|
...km/h
|
Speedometer reading and readout on V.A.G 1551 may differ slightly.
|
|
continued
▼
|
2
|
Engine speed
|
With engine running
|
... rpm
|
- Rectify engine fault if necessary
|
1) When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
003
|
3
|
Gear selected
|
Driving1)
|
Neutral
|
0
|
- Check solenoid valves
=> Perform electrical check, from page 01-101
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
|
1 hydraulic
|
1H
|
|
|
|
|
|
|
|
1 mechanical
|
1M
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
|
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3 H
|
|
|
|
con-
|
|
|
|
|
3 mechanical
|
3M
|
|
|
|
tinued
|
|
|
|
|
4 hydraulic
|
4H
|
|
|
|
▼
|
|
|
|
4 mechanical
|
4M
|
|
|
1) When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
003
|
4
|
Accelerator pedal value
|
Driving1)
|
Idling
|
0...1 %
|
When accelerating from idling to full throttle, the % figure increases constantly
|
|
|
|
|
|
Full throttle
|
99...100 %
|
- Bring system to basic setting
|
1) When driving, a second mechanic is needed for reading the specified values.
Checking solenoid valves with vehicle moving
-
◆ The solenoid valves can be checked whilst driving via "Read measured value block 08"; "display group number 004".
-
◆ The table shows which of the solenoid valves -N88-, -N89- and -N90- are activated in each selector lever position. These solenoid valves control the selector valves for the relevant gears.
-
◆ Solenoid valve -N91- controls the modulation valve for the lock-up clutch.
-
◆ Solenoid valves -N92 and -N94 are supplementary valves which are designed to smooth out the gearshift; they are only activated during gear changes and appear in displays 5 and 6. The displays will read either "0" or "1", depending on the valve condition during the gearshift.
-
◆ 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-
|
-N92-
|
-N94-
|
-
◆ Non-activated solenoid valves display "0" and activated solenoid valves display "1".
-
◆ Solenoid valves with variable switch condition are indicated with "X" in the following tables.
-
◆ All solenoid valves are checked via self-diagnosis => Interrogating fault memory, Page 01-33.
Checking solenoid valves, whilst driving
|
Display group number
|
Display zone
|
Designation
|
Test conditions
Selector lever in:
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
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:
|
|
R 1)
|
1 0 1 0 00
|
|
|
|
|
|
|
R 2)
|
0 0 1 0 00
|
- Perform
|
|
|
|
|
|
N
|
1 0 1 0 00
|
|
electrical check
|
|
|
|
-N88- Display 1
|
D1)
|
1H
|
0 0 1 0 X0
|
|
=>from Page 01-101
|
|
|
|
-N89- Display 2
|
|
1M
|
0 0 1 0 X0
|
- Continue fault finding
|
|
|
|
-N90- Display 3
|
|
2H
|
0 1 1 0 00
|
|
according to fault finding programme
|
|
|
|
-N91- Display 4
|
|
2M
|
0 1 1 0 00
|
=> "Fault finding.
|
|
|
|
-N92- Display 5
|
|
3H
|
0 0 0 0 01
|
|
Power transmission"
|
|
|
|
-N94- Display 6
|
|
3M
|
0 0 0 0 01
|
|
|
|
con-
|
|
|
4H
|
1 1 0 0 01
|
|
|
|
tinued
▼
|
X =
|
variable (1 or 0)
|
4M
|
1 1 0 0 01
|
|
1) Whilst driving with gears selected a second mechanic is required for reading the specified values.
2) Road speed below 10 km/h
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
Selector lever in:
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
004
|
1
|
Solenoid valves/indicated on
|
31)
|
1H
|
0 0 1 0 X0
|
Solenoid valves are selected according to driving condition
|
|
|
|
V.A.G 1551:
|
|
1M
|
0 0 1 0 X0
|
- Perform
|
|
|
|
-N88- Display 1
|
|
2H
|
0 1 1 0 00
|
|
electrical tests
|
|
|
|
-N89- Display 2
|
|
2M
|
0 1 1 0 00
|
=>from Page 01-101
|
|
|
|
-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 X0
|
|
=> "Fault finding, Power transmission"
|
|
|
|
-N94- Display 6
|
|
1M
|
0 0 1 0 X0
|
|
|
|
|
|
|
2H
|
0 1 1 0 00
|
|
|
|
|
|
|
|
2M
|
0 1 1 0 00
|
|
|
con-
|
|
|
11)
|
1H
|
0 0 1 0 X0
|
|
|
|
tinued
▼
|
|
X =
|
variable (1 or 0)
|
1M
|
0 0 1 0 X0
|
|
1) Whilst driving with gears selected a second mechanic is required for reading the specified values.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
004
|
2
|
Gear selected
|
Driving 1)
|
Neutral
|
0
|
- Check solenoid valves
=> Perform electrical tests, from Page 01-101
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
|
1 hydraulic
|
1H
|
|
|
|
|
|
|
|
1 mechanical
|
1M
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
|
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3 H
|
|
|
|
|
|
|
|
|
3 mechanical
|
3M
|
|
|
|
|
|
|
|
|
4 hydraulic
|
4H
|
|
|
|
continued
▼
|
|
|
|
4 mechanical
|
4M
|
|
|
1) When driving, a second mechanic is needed for reading the specified values.
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
004
|
3
|
Selector lever position
|
Driving 1)
|
P
|
P
|
- Check multi-function switch connection for contact corrosion, renew if necessary
|
|
|
|
|
|
|
R
|
R
|
- Check wiring according to current flow diagram
|
|
|
|
|
|
|
N
|
N
|
- Check multi-function switch -F125- => Perform electrical tests, from Page 01-101
|
|
|
|
|
|
|
D
|
D
|
|
|
|
|
|
|
|
3
|
3
|
|
|
|
|
|
|
|
2
|
2
|
|
|
continued
▼
|
|
|
|
|
1
|
1
|
|
1) When driving, a second mechanic is needed for reading the specified values.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
004
|
4
|
Vehicle speed
|
Speed at which vehicle is driven 1)
|
...km/h
|
The speedometer reading and readout on V.A.G 1551 may differ slightly
|
|
005
continued
▼
|
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 tests, from Page 01-101
|
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.
3) Ignition timing modulation is only activated during a gearshift.
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified read out V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
005
|
2
|
Selector outputs
|
Selector lever lock
solenoid -N110-
|
|
- Check wiring according to current flow diagram
|
|
|
|
|
Display 3
|
|
is
switched on
|
1
|
- Check selector lever lock solenoid -N110-
=> Perform electrical tests, from Page 01-101
|
|
|
|
|
|
|
is
switched off
|
0
|
|
|
|
|
|
Display 4
|
|
is
switched on 1)
|
1
|
- Check brake light switch -F
=> Electrical test, Test step 3, Page 01-101
|
|
|
continued
▼
|
|
|
|
is
switched off 2)
|
0
|
|
1) Brake pedal not applied.
2) Brake pedal applied.
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified read out V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
005
|
2
|
|
|
Cruise control system
|
|
- Check wiring according to current flow diagram
|
|
|
|
|
Display 5
|
|
switched on
|
1
|
- Check cruise control system
=> "Current flow diagrams, Electrical fault finding and Fitting locations" binder
|
|
|
continued
▼
|
|
|
|
switched off
|
0
|
|
|
|
|
|---|
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
005
|
2
|
Selector outputs
Display 6
|
Air conditioner
|
was switched off
|
1
|
Check routing of wiring on basis of current flow diagram
|
|
|
|
|
|
|
is 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
|
|
|
continued
▼
|
|
|
|
|
D, 3, 2, 1
|
X 1)
|
Selector lever positions D, 3, 2 and 1 can be disregarded
|
1) X = variable readout: 1 or 0
|
Display group number
|
Display zone
|
Designation
|
Test conditions
|
Specified readout on V.A.G 1551
|
Rectifying fault if readout does not match specification
|
|
005
|
3
|
Gear to select
|
Driving 1)
|
Neutral
|
0
|
- Check solenoid valves
=> Perform electrical tests, from Page 01-101
|
|
|
|
|
|
Reverse
|
R
|
|
|
|
|
|
|
|
1 hydraulic
|
1H
|
- If gearshifts do not occur, a clutch or brake may be defective
|
|
|
|
|
|
|
1 mechanical
|
1M
|
|
|
|
|
|
|
|
2 hydraulic
|
2H
|
=> "Fault finding" binder, Power transmission, No. 14
|
|
|
|
|
|
|
2 mechanical
|
2M
|
|
|
|
|
|
|
|
3 hydraulic
|
3H
|
- Renew gearbox control unit -J217- => Page 01-7
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con-
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3 mechanical
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3M
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tinued
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4 hydraulic
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4H
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▼
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4 mechanical
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4M
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1) When driving, a second mechanic is needed for reading the specified values.
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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005
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4
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Engine speed
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Driving 1)
with engine running
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... rpm
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- Rectify engine fault if necessary
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1) When driving, a second mechanic is needed for reading the specified values.
1) When driving, a second mechanic is needed for reading the specified values.
2) Towing a trailer or increased payload also causes the readouts on V.A.G. 1551 to rise because of the increase in load.
1) When driving, a second mechanic is needed for reading the specified values.
2) Towing a trailer or increased payload also causes the readouts on V.A.G. 1551 to rise because of the increase in load.
3) High values for the "sport" factor cause the gearshifts to occur at higher engine speeds.
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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006
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4
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Accelerator pedal value
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Driving 1)
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Idling
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0 ... 1%
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When accelerating from idling to full throttle the percentage value constantly increases
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Full throttle
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99 ... 100%
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- Bring system into basic setting
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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007
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1
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Gear selected 1)
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Neutral
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0
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- Check solenoid valves
=> Perform electrical tests, from Page 01-101
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Reverse
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R
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- If gearshifts do not occur, a clutch or brake may be defective
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1 hydraulic
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1H+/-
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=> "Fault finding" binder, Power transmission
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con-
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1 mechanical
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1M+/-
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- Renew gearbox control unit -J217- => Page 01-7
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tinued
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2 hydraulic
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2H +/-
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- Bring system into basic setting
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▼
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2 mechanical
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2M +/-
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1) When driving, a second mechanic is needed for reading the specified values.
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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007
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1
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Gear selected 1)
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3 hydraulic
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3 H +/-
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- Check solenoid valves
=> Perform electrical tests, from Page 01-101
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3 mechanical
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3M +/-
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- If gearshifts do not occur, a clutch or brake may be defective
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4 hydraulic
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4H +/-
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=> "Fault finding" binder, Power transmission
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continued
▼
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4 mechanical
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4M +/-
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- Renew gearbox control unit -J217- => Page 01-64
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1) When driving, a second mechanic is needed for reading the specified values.
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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007
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2
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Torque converter slip 2)
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Driving 1)
with engine running
Torque converter lock-up clutch open
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0 rpm up
to stall speed 5)
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- Check ATF level
Check wiring according to current flow diagram
Rectify fault as described in fault table for fault codes 00529 and 00281
=>from Page 01-35
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Torque converter clutch closed 3)
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Engine speed 2000 ... 3000 rpm
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0 ... 130 rpm
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Clutch or brake defective4)
Check solenoid valves 4)
=>electrical tests, Page 01-101
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continued
▼
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maximum
engine speed
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0 ... 15 rpm
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Torque converter defective, or incorrect torque converter fitted (see code letters)
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Note:
Refer to footnotes for display zone 2 in display group number 007.
Footnotes for display zone 2 in display group number 007
1) When driving, a second mechanic is needed for reading the specified values.
2) The torque converter lock-up clutch must be open. When the lock-up clutch is open, the torque converter slip may increase up to the stall speed. The lock-up clutch is open when "H" = hydraulic with slip is displayed in display zone 1 for the gear which is currently selected. Additionally the character "+" is displayed. "+" signifies that the engine speed (pump speed) is greater than the turbine speed, and "-" signifies that the engine speed is less than the turbine speed.
=> "Fault-finding" binder, Power transmission
3) Test conditions: the gearshift must be completed, the torque converter lock-up clutch must be closed and the accelerator pedal value must be constant.
4) If the torque converter slip speed shown on the display is too high, this may also indicate a slipping clutch or brake. Determine in which gear and in which selector element the fault occurs.
=> Automatic Gearbox 01N; Repair Group 37; Gearbox with selector elements
5) At present, the readout is limited to a maximum of 1900 rpm only by reason of the initialising of gearbox control unit -J217.
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Display group number
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Display zone
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Designation
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Test conditions
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Specified readout on V.A.G 1551
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Rectifying fault if readout does not match specification
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007
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3
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Engine speed
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With engine running
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... rpm
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- If necessary adjust engine settings
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4
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Accelerator pedal value
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Idling
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0...1 %
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When accelerating from idling to full throttle the percentage value constantly increases
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Full throttle
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99...100 %
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- Bring system into basic setting
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008
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Can be disregarded
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