Test Procedure
Electrical test- Switch OFF ignition.
- Remove plenum panel inner cover.
- Release multi-pin connector, then disconnect connector from control module.
- Connect VAG 1598/18 test box to multi-pin connector -1- and lock in direction of arrow -2-.
Using the VAG 1598/18 test box the wiring can be checked according to the wiring diagram
CAUTION! In order to avoid interference with electronic components, switch to the correct test range on the multi-meter before connecting the test leads.
NOTE:
- For testing use a Fluke 83 multimeter or equivalent with auxiliary wiring from VAG 1594.
- The specified values are valid for an ambient temperature of 0 - 40 °C (50 - 104 °F).
- If measured values deviate from the specified values, determine the malfunction using the appropriate wiring diagram.
- If measured values deviate only slightly from the specified values, clean the sockets and connectors of the testers and test leads and repeat the test. Before replacing the particular components, test wiring and connections and, particularly if specified values are below 10 Ohms, repeat resistance measurement on component.
- Before replacing components, check the respective wiring and connectors. Repeat resistance tests when values are below 10 Ohms
After electrical tests:
- Connect multi-pin connector on Transmission Control Module -J217- pins (arrows) then lock connector.
- Conducting On Board Diagnostic (OBD): Testing and Inspection
- Initiating basic setting: Testing and Inspection
Transmission Control Module (TCM) -J217- 68-pin connector (socket numbers on VAG 1598/18)
1 - Ground (terminal 31)
2 - Vacant
3 - CAN-Bus low input and output signa1s
4 - Vacant
5 - Vacant
6 - Transmission Fluid Temperature Sensor -G93-
7 - Vacant
8 - Vacant
9 - Solenoid valve 3 -N90-
10 - Solenoid valve 7 -N94-
11 - Park/neutral signal
12 - Kickdown for air conditioner
13 - Engine - Ignition timing influence
14 - Vacant
15 - Brake Light Switch -F- signal voltage
16 - Kick Down Switch -F8-
17 - Vacant
18 - Multi-Function TR Switch -F125- (pin 5)
19 - Engine-TD (RPM) signal
20 - Vehicle Speed Sensor -G68-
21 - Transmission Vehicle Speed Sensor -G38-
22 - Solenoid valve 6 -N93- supply voltage
23 - Supply voltage (terminal 15)
24 - On Board Diagnostic K-wire
25 - CAN-Bus high input and output signals
26 - CAN-Bus shield, vacant if CAN-Bus wiring has interwoven core
27 - Vacant
28 - Vacant
29 - Shift Lock Solenoid -N110-
30 - Vacant
31 - Vacant
32 - Vacant
33 - Vacant
34 - Vacant
35 - Vacant
36 - Vacant
37 - Vacant
38 - Vacant
39 - Vacant
40 - Multi-Function TR Switch -F125- (pin 2)
41 - Load signal from engine control module
42 - Vacant
43 - Vehicle Speed Sensor -G68- (shield)
44 - Transmission Vehicle Speed Sensor -G38- (shield)
45 - Supply voltage (terminal 30)
46 - Vacant
47 - Solenoid valve 4 -N91-
48 - Vacant
49 - Vacant
50 - Vacant
51 - Vacant
52 - Vacant
53 - Vacant
54 - Solenoid valve 2 -N89-
55 - Solenoid valve 1 -N88-
56 - Solenoid valve 5 -N92-
57 - Selector lever display
58 - Solenoid valve 6 -N93-
59 - Vacant
60 - Vacant
61 - Cruise control system (output)
62 - Multi-Function Switch -F125- (pin 6)
63 - Multi-Function Switch -F125-
64 - Vacant
65 - Vehicle Speed Sensor -G68-
66 - Transmission Vehicle Speed Sensor -G38-
67 - Solenoid valves voltage supply
68 - Vacant
Overview of test steps
- Conduct only those test steps recommended in the Diagnostic Trouble Code (DTC) and measured value block tables
- Steps listed below according to component
