1999 AUDI A4 wiring

01-298

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG
1598/20sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
27
46 + 54
46 + 55 Tiptronic
Switch -
F189- Ignition switched off
- Selector lever in
Tiptronic gate less than
1.5V With the Tiptronic Switch the driver
can manually select the desired
driving range
2)

Ignition switched on
- Selector lever in
Tiptronic gate and up-
shift switch actuated approx.
battery
voltage - Check wiring according to wiring
diagram. If installed also check
wiring to Tiptronic steering wheel

46 + 34
46 + 6 Ignition switched on
- Selector lever in D
- Selector lever in
Tiptronic gate
- Selector lever in
Tiptronic gate and
downshift switch
activated approx. 12V
Repair Manual, T5 Spd.
Automatic Transmission 01V, Repair Group 37
- Check magnet on lateral gate
cover
1)
- Repair shift mechanism, if
necessary replace gate cover or
circuit board with Tiptronic switch -
F189- 1)
Continued


Ignition switched on
- Selector lever in approx.
15mV - Perform test step 28
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01-299

Voltage measurement: switch multimeter to 20 V measuring range
Test step
VAG1598/20sockets
Test of
Test conditions
- Additional stepsSpecified
value Corrective action
27
cont'd 47 + 34
47 + 6 Tiptronic
Switch -
F189- Ignition switched on
- Selector lever in D
- Selector lever in
Tiptronic gate
- Selector lever in
Tiptronic gate and up -
shift switch activated approx. 12V With the Tiptronic Switch the
driver can manually select the
desired driving range
2)
- Check wiring according to
wiring diagram. If installed also
check wiring to Tiptronic
steering wheel

Ignition switched on
- Selector lever in
Tiptronic gate and
down-shift switch
activated approx.15
mV - Check magnet on lateral gate
cover
1)

46 + 54
47 + 55
Ignition switched off
- Selector lever in
Tiptronic gate less than
1.5V - Repair shift mechanism, if
necessary replace gate cover
or circuit board with Tiptronic
switch -F189-
1)
Continued



Ignition switched off
- Selector lever in
Tiptronic gate and approx.
battery
voltage Repair Manual, 5 Spd.
Automatic Transmission 01V, Repair Group 37

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01-301

Resistance measurement
Test
step VAG
1598/20
sockets Test of
Test conditions
- Additional stepsSpecified
value Corrective action
28 A) 85 + 28
3)
85 + 34
86 + 28 3)
86 + 34 Wiring connection of TCM to
ECM (CAN-bus)
Ignition switched
off ECM
disconnected infinite
1)
- Check wiring per wiring
diagram.

85 + xx
2)
86 + xx 2)
less than 1.5

Further information on CAN-bus
page 01
-263

1) Switch VAG1526 to highest resistance ( ) measuring range. 2) Applicable terminal assignment at Engine Control Module (ECM).

Repair Manual, Fuel Injection & Ignition, Repair Group 24
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01-302

Wiring between transmission and 88-pin
connector for Transmission Control
Module (TCM) -J217-, testing


Perform if:

Output Diagnostic Test Mode (DTM) or
Electrical test indicates malfunctions in the
transmission, the TCM -J217-, or in the
corresponding wiring.

Test conditions
Ignition switched off
Connect VAG1598/20 adapter only to 88-pin
connector of transmission wiring harness.
Perform measurements with VAG1598/20
adapter on the outside of the vehicle

- Remove noise insulation panel.
- Remove bracket -1- for noise insulation panel.
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01-303

Wiring to 16-pin connector on transmission,
testing

- Turn 16-pin connector -4- on transmission to release bayonet catch.

- Use multimeter (Fluke 83 or equivalent) to test for continuity between
terminals of 16-pin connector and sockets on VAG1598/20 adapter.
Resistance specifications table, page 01
-304
.
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01-304
Resistance specifications
Terminal on
16-pin connector Socket on VAG1598/20
adapter Specification
Corrective action
1 42
1.5
Check connectors for: - Repair open circuit according to current wiring diagram.
- contact corrosion
- ingress of water
- leaks
2 5
1.5
3 1
1.5
4 32
1.5
5 16
1.5
6 44
1.5
7 29
1.5
8 30
1.5
9 33
1.5
10 14
1.5
11 4
1.5
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01-305

Terminal on
16-pin connector Socket on VAG1598/20
adapter Specification
Corrective action
14 21
1.5
- Repair open circuit according to current wiring diagram.
- Check connectors
15 Vacant
16 53
1.5
Notes:

If the readings in these tests match the specifications, check the wiring harness in the transmission.

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 38; removing and installing valve body

Only replace relevant solenoid valves if there are no faults found in the wiring harness in the transmission.

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 38, valve body removing and installing

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01-307

Multi-function Transmission Range (TR)
switch -F125- (8-pin connector), testing

1. Function test

- Release spring catch securing 8-pin connector -2- to connector on
wiring to multi-function TR switch.
- Unclip connector to multi-function TR switch from retainer or remove
retainer together with connector from transmission to gain better
access to the pins in the connector.

- Pin assignment for 8 - pin connector of Multi-function (TR) switch -
F125-
- Use multi-meter VAG 1526A or Vehicle Diagnosis, Measuring and
Information System VAS 5051.
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