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Gearbox: Electrical check
Test table
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Switch to voltage measuring range 20 V
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Test step
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V.A.G 1598/18 sockets
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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1
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23 + 1
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Supply voltage from control unit -J217-
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▪ Ignition switched on
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approx. battery voltage
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- Check wiring according to current flow diagram
Check wiring from contact 1 to earth
Check wiring from contact 23 to terminal 15 central electrics
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2
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29 + 15
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Selector lever lock solenoid -N110-
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▪ Ignition switched on
▪ Brake pedal not depressed
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approx. battery voltage
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- Check wiring according to current flow diagram
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- Brake pedal depressed
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0.2 V
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- Renew selector lever lock solenoid
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3
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15 + 1
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Brake light switch -F-
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▪ Ignition switched on
▪ Brake pedal not depressed
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0 V
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- Check wiring according to current flow diagram
Renew brake light switch -F-
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- Brake pedal depressed
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approx. battery voltage
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=> Running gear self-diagnosis Repair group 01; Adjusting brake light switch
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Switch to resistance measuring range 200 ω
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Test step
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V.A.G 1598/18
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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4
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55 + 67
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Solenoid valve 1 -N88-
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▪ Ignition switched off
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55 to 65 ω
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55 + 1
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infinite
ω1)
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5
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54 + 67
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Solenoid valve 2 -N89-
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▪ Ignition switched off
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55 to 65 ω
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- Check wiring according to current flow diagram
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54 + 1
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infinite
ω1)
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6
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9 + 67
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Solenoid valve 3 -N90-
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▪ Ignition switched off
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55 to 65 ω
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- Renew conductor strip or valve body
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9 + 1
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infinite
ω1)
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=> Repair group 38; Removing and installing valve body
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7
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47 + 67
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Solenoid valve 4 -N91-
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▪ Ignition switched off
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4.5 to 6.5 ω
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47 + 1
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infinite
ω1)
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1) Switch V.A.G 1526 A to highest ωrange
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Switch to resistance measuring range 200 ω
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Test step
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V.A.G 1598/18 sockets
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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8
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56 + 67
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Solenoid valve 5 -N92-
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▪ Ignition switched off
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55 to 65 ω
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- Check wiring according to current flow diagram
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56 + 1
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infinite
ω1)
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9
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58 + 22
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Solenoid valve 6 -N93-
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▪ Ignition switched off
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4.5 to 6.5 ω
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- Renew conductor strip or valve body
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58 + 1
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infinite
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=> Repair group 38; Removing and installing valve body
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22 + 1
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ω1)
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10
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10 + 67
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Solenoid valve 7 -N94-
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▪ Ignition switched off
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55 to 65 ω
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10 + 1
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infinite
ω1)
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11
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23 + 29
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Selector lever lock solenoid -N110-
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▪ Ignition switched off
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14 to 25 ω
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- Check wiring according to current flow diagram
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1) Switch V.A.G 1526 A to highest ωrange
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Switch to resistance measuring range 2 Mω
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Test step
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V.A.G 1598/18 sockets
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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12
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6 + 67
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Gearbox oil temperature sender
-G93- (ATF)
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▪ Ignition switched off
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- Check wiring using current flow diagram
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▪ ATF temperature
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approx. 20 °C
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0.247 M ω
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- Switch hand multimeter V.A.G 1526 A to 200 K ω
approx. 60° C
approx. 120° C
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48.8 K ω
7.4 K ω
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Switch to resistance measuring range 20 K ω
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Test step
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V.A.G 1598/18 sockets
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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13
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20 + 65
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Road speed sender -G68-
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▪ Ignition switched off
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- Check wiring using current flow diagram
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min.
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0.8 Kω
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- Renew road speed sender -G68-
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max.
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0.9 K ω
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14
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21 + 66
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Gearbox speed sender -G38-
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▪ Ignition switched off
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- Check wiring using current flow diagram
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min.
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0.8 Kω
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- Renew gearbox speed sender -G38-
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max.
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0.9 K ω
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Switch to voltage measuring range 20 V
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Test step
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V.A.G 1598/20
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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15
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23 + 39
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Tiptronic switch -F189-
Tiptronic recognition signal
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▪ Ignition switched on
Selector lever not in Tiptronic gate
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approx. battery voltage
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- Check wiring using current flow diagram
If necessary, renew Tiptronic switch -F189- (printed circuit) 1)
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▪ Ignition switched on
Selector lever not in Tiptronic gate
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Less than
1.5 V
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=> Repair group 37; Servicing selector mechanism; Dismantling and assembling selector mechanism (assembly overview)
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1) If malfunctions occur in the Tiptronic switch, the gear shift symbol insert with integral printed circuit must be renewed.
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Switch to voltage measuring range 20 V
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Test step
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V.A.G 1598/20
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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16
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8 + 23
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Tiptronic switch -F189-
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▪ Ignition switched on
Selector lever in Tiptronic gate
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Less than 1 V
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The driver can select any desired gear manually with the change up and change down switches.
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Change up/down signal
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▪ Ignition switched on
Change up switch operated
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Approx. battery voltage
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- Check wiring according to current flow diagram
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23 + 52
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▪ Ignition switched on
Selector lever in Tiptronic gate
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Less than 1 V
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- If necessary renew Tiptronic switch -F189- (printed circuit)1)
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▪ Ignition switched on
Change down switch operated
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approx. battery voltage
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=> Repair group 37; Servicing selector mechanism; Dismantling and assembling selector mechanism (assembly overview)
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1) If malfunctions occur in the Tiptronic switch, the gear shift symbol insert with integral printed circuit must be renewed.
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Switch to resistance measuring range 200 ω
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Test step
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V.A.G 1598/20
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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17
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3 + 25
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Data bus wiring
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▪ Ignition switched off
Engine control unit, ABS control unit and dash panel insert disconnected
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infinite ω
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- Check data bus wiring for open circuit or short circuit or correct routing using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations
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3 + 25
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Matching resistor in engine control unit
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▪ Ignition switched off
ABS control unit and dash panel insert disconnected
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60...80 ω
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If resistance is not within specified range:
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Test step 17: Continued on next page.
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Switch to resistance measuring range 2 Mωin test step 17,
voltage measurement 20 V in test step 18
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Test step
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V.A.G 1598/20
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Test of
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▪ Test conditions
- Additional operations
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Specified value
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Rectifying fault
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17
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3 + 1
25 + 1
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Data bus wiring
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▪ Ignition switched off
Engine control unit disconnected
ABS control unit disconnected
Dash panel insert disconnected
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min. 300 ω
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Wiring has short to earth
Check data bus wiring using current flow diagram
=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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18
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3 + 45
3 + 23
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Check of data bus wiring (short circuit to battery positive)
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▪ Ignition switched off
Engine control unit disconnected
ABS control unit disconnected
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max. 6 V
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Wiring has short to battery positive
Check data bus wiring for short circuit to positive using current flow diagram
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25 + 45
25 + 23
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- Dash panel insert disconnected
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max. 6 V
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=> Current flow diagrams, Electrical fault finding and Fitting locations binder
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