Inspecting Cable Connection Between 68-Pin Gearbox Control Unit And Gearbox - Skoda Octavia Workshop Manual

01
Test V.A.G
step 1598/20
Sockets
1)
20 3 + 1 Short-circuit to earth
3 + 23 and terminal 15 of
25 + 1 CAN databus lines
25 + 23
1) Only for gearbox with databus (CAN databus)
2) V.A.G 1526 A switches to largest Ω range.
Notes:
The data and information exchanged between engine
control unit, brake control unit and gearbox control unit
is performed via the so-called CAN databus. All infor-
mation signals are transmitted through 2 cables. CAN
databus function page 01-28.1.
------------ ------------
Self-Diagnosis/Electrical Test
Switch on measuring range: Resistance measurement
Tested • Test conditions
- Additional operations
• Ignition switched off
• Engine control unit re-
moved
• Brake control unit re-
moved
Nominal
value
endless Ω
Current Flow Diagram as of Model year 1998.
If the test is O.K., the two cable databus system must
be tested page 01-28.1.
Inspecting cable connection be-
tween 68-pin gearbox control unit
and gearbox
Perform if:
the actuator diagnosis or
the electrical test indicates faults in or between
gearbox and gearbox control unit -J217.
Test requirements:
Ignition switched off
Connect test box V.A.G 1598/18 only to 68-pin
connector of gearbox wiring harness.
Perform measurements with test box
V.A.G 1598/18 outside the vehicle.
Measures for deviations from
nominal value
2)
- Check wiring Current Flow
Diagrams, Electrical Fault
Finding, Fitting locations.
- Check CAN Chassis; Anti-
lock brake system Repair
Group 45.
Edition 06.03
S00.5116.60.20
OCTAVIA