AUDI A6 1999 C5 / 2.G 01V Transmission Electrical Testing Workshop Manual

01-273


Electrical testing Special tools and test equipment:

VAG1526A multimeter
VAG1598/20 test box
VAG1594A connector test kit
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01-274

Additional information

Repair Manual, 5 Spd. Automatic Transmission
01V,
Electrical Wiring Diagrams, Troubleshooting &
Component Locations"

Notes:
Use VAG1526A multimeter for the test. The
tables list which measures range needs to be
selected before taking each measurement.
The specified values are valid for an ambient
temperature of 0 to 40 C (32 to 104 F).

If the values obtained differ from the specified
values, determine the malfunction using the
applicable wiring diagram.
If the measured values only deviate slightly
from the specified values clean sockets and
connectors of testers and repeat test. Before
replacing a component, check wires and
connections. If the specified values are below
10 , repeat the resistance measurement on
the component.
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Use VAG1598/20 adapter to connect test
equipment.
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The contact numbers of the connector and the
socket numbers of VAG 1598/20 test box match
up page 01
-277
.

To check the multi-function switch, it is not
necessary to connect test box VAG 1598/20
because first the connectors for the multi-
function switch are checked.

CAUTION!

To avoid permanent damage of electronic
components, select the appropriate
measuring range on tester before connecting
the measuring leads.

Test requirements
Battery voltage OK
Fuses for Transmission Control Module
(TCM) OK

Electrical Wiring Diagrams, Troubleshooting &
Component Locations

Fuses for component being tested OK. The
fuse holder is behind a cover on the side of
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the instrument cluster.
Ground (GND) connections OK:

Check battery Ground (GND) strap and Ground
(GND) strap between body and transmission.

Check Ground (GND) connections for
Transmission Control Module (TCM).

Electrical Wiring Diagrams, Troubleshooting &
Component Locations
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- For all test steps, switch ignition off, disconnect multi-pin connector for
Transmission Control Module (TCM) -J217- (located in front of
passenger seat under carpet in foot well page 01
-11
) and connect
VAG1598/20 adapter to wiring harness connector.
- If measuring values do not match specifications, follow instructions in
right-hand column of test table (labelled "Corrective action") page
01
-11
.
- Always perform all steps indicated in the "Corrective action" column.
- Only perform test steps recommended in the DTC table (selective
troubleshooting).
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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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13-
Tiptronic recognition 30-
Solenoid valve 1 -N88-
14-
Transmission VSS -G38- 31-
Vacant
15-
Transmission VSS -G38- (shielding) 32-
Solenoid valve 3 -N90-
16-
Sensor for transmission RPM -G182- 33-
Solenoid valve 2 -N89-
17-
Signal for malfunction monitor (OBD II -
request)
1) 2) 34-
Ground (GND) for power consumers (terminal 31)
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35- Fuel consumption signal
(engine torque, actual)
1) 54- Supply voltage (terminal 15)
36- Multi-function TR switch -F125-, L1 55- Supply voltage (terminal 15)
37- Multi-function TR switch -F125-, L3 56- Vacant
38- Vacant -
39- Vacant -
40-
Engine speed (RPM) signal
1)
-
41-
Throttle position value (load signal)
1)
-
42- Transmission VSS -G38- -
43- Vacant -
44- Sensor for transmission RPM -G182- - Terminals 57 - 83 are vacant
45- Vacant -
46- Tiptronic upshift switch -
47- Tiptronic downshift switch -
48- Vacant -
49- Vacant 84- Vacant
50- Vacant 85-
CAN-bus
3)
51- Upshift/downshift signal
(for engine torque reduction) 86-
CAN-bus 3)
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52- Supply voltage for solenoid valves 87- Vacant
53- Supply voltage for solenoid valves 88- K-wire for On Board Diagnostic (OBD)
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