1999 AUDI A8 engine

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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A) Testing only for vehicles with a CAN-bus

Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 00; Code letters, engine/transmission applications, ratios, equipment

3) Pin 28 at the control module is vacant for vehicles with 10-pin connector of multi-function switch -F125-.
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01-310
Transmission with Multi-function Transmission Range (TR) switch -F125- with 8 - pin connector, checking
Resistance measurement: switch multimeter to 2 M measuring range
Test step
Connector
pins at F 125 Test of
Test conditions
- Additional stepsSpecified
value Corrective action
Continued
to
1 6 + 7 Part No. signal of
Multi-function TR
switch Ignition switched
off
- Selector lever in R,
D, 4, 3, and 2 infinitive
1)
Repair Manual, 5 Spd.
Automatic Transmission 01V, Repair Group 38
- Replace multi-function TR switch

Ignition switched
off
- Selector lever in P,
and N less than 2

The Part No. signal for the Engine
Control Module (ECM) is being
checked
1) Switch VAG1526 to highest resistance ( ) measuring range. Note:

If function check was OK, check voltage supply to Multi-function TR switch -F125- page 01
-311

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pair&id=AUDI.B5.AT02.01.16