brake light AUDI A4 2000 B5 / 1.G 01V Transmission Electrical Testing Workshop Manual

01-277
88-pin connector for Transmission Control Module (TCM) -J217- (sockets on VAG1598/20)
1- Solenoid valve 5 -N92- 18-
Kick-down switch -F8- (not for E-gas and V6-TDI)
2- Shift lock solenoid -N110- 19-
Control input to transmission from ABS control module
3- Vacant 20-
Engine intervention (via ignition timing)
1)
4- Solenoid valve 7 -N94- 21-
ATF temperature sensor -G93-
5- Solenoid valve 4 -N91- 22-
ATF temperature sensor -G93-
6- Ground (GND) for power consumers, term.
31 23-
Sensor for transmission RPM -G182- (shielding)
7- Vacant 24-
Vacant
8- Multi-function TR switch -F125-, L2 25-
Selector lever display (not for Highline combi)
9- Multi-function TR switch -F125-, L4
supply voltage for cruise control system 26-
Supply voltage (terminal 30) with or without fuses depending on
model wiring diagram
10-
Brake light switch -F- (not for E-gas and
V6-TDI) 27-
Kick-down for air conditioning
1)
11-
Vacant 28-
Ground (GND) for electronics (terminal 31)
4)
12- Vacant 29- Solenoid valve 6 -N93-
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01-280
List of test steps (88-pin connector)

Only perform test steps for the relevant component, as listed in DTC and Read Measuring Value Block tables.
Item checked
Item checked
Supply voltage for TCM -J217-
- Perform test
steps 1 and 7 Solenoid valve 5 -N92- (Pressure control
valve -2- -N216-) - Perform test steps 13
and 8
Shift lock solenoid -N110-
- Perform steps 2,
6 and 16 Solenoid valve 6 -N93- (pressure control
valve -3- -N217-) - Perform test steps 14
and 8.
Brake light switch -F-
- Perform test
step 3. Solenoid valve 7 -N94- (pressure control
valve -4- -N218-) - Perform test steps 15
and 8.
Supply voltage for cruise
control system - Perform test
step 4. Transmission VSS -G38- (Sensor for
transmission output RPM -G195-) - Perform test step 18.
Kick-down switch -F8-
(not for E-gas) - Perform test
steps 5 and 17 Sensor for transmission RPM -G182-
- Perform test step 19.
Multi-function TR switch
(driving range sensor) -F125- - page 01
-322
ATF temperature sensor -G93-
- Perform test step 20.
Solenoid valve 1 -N88-
- Perform test
steps 8 and 9 Wiring connection to ECM
1)
- Perform test steps 21,
22, 23, 24, and 25
1) Signal is transmitted to Transmission Control Module (TCM) via the Engine Control Module (ECM). Test is only for vehicles
without CAN-bus.
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01-283

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
3
1)
10 + 6
10 +
28
2) Brake light switch
-F-
Ignition switched
on Brake pedal not
depressed less than 1 V
- Check wiring per wiring
diagram.
- Replace and adjust brake
light switch -F-.
not for E-gas
engines
- Brake pedal
depressed approx. battery
voltage Repair Manual, Brake
System, Repair Group 47

4 9 + 6
9 + 28
2) Supply voltage for
Cruise Control, Control
Module
-J213-
Ignition switched
on Selector lever in
D, 4 and 3 approx. battery
voltage - Check wiring from terminals
6 and 28 to Ground.
- Check wiring from terminal 9
to terminal 15 of central
electrics.
- Check wiring to cruise
control, control module -J213-
- Check multi-function switch -
F125- page 01
-322


Selector lever in
P, R, N, and 2 less than 5 V
- Check fuse 31
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1) This test cannot be performed on vehicles with E-gas. The signal is transmitted from brake light switch or brake test switch
to Engine Control Module (ECM). The ECM then forwards the signal to the Transmission Control Module via the CAN-Bus. 2) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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