Electrical Check
Special tools, testers, etc.
- Fluke(R) 83 Digital multimeter or equivalent
- VAG 1594 A Adapter set
- VAG 1598/18 Test box
Additional information required
- Repair Articles for Automatic TransmissionM
- Electrical Wiring Diagrams
Test requirements:
- Battery voltage OK
- Vehicle voltage supply OK
- Fuses No. 7, 11, 15 and 31 OK
- Fuse in main fuse box (110 amps) OK
- Ground connections for transmission OK
Ground connection points are located in the plenum area of the cowl and below the battery in the engine compartment.
- Check battery Ground strap and Ground strap between battery and transmission.
See Electric/electronic components and locations. Initial Inspection and Diagnostic Overview
Remove wiper arms.
- Switch ignition off, open hood
Removing plenum water tray cover
- Unclip trim -1- from inner side of fender in area of hood hinge -2- on right and left sides.
- Remove entire length of plenum seal -1- and remove screws -2-.
- Remove cover for pollen filter by pulling cover forward and up.
- Push plenum water tray cover -1- upward off of seat at base of windshield -2- and remove.
- Release control module connector and disconnect.
- Connect VAG 1598/18 test box to multi-pin connector -1- and lock in direction of arrow -2-.
Using VAG 1598/18 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 multimeter 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 from 0 °C - 40 °C (50 - 104 ° F).
- If measured values differ from the specified values, determine the malfunction using the appropriate wiring diagram.
- If measured values differ 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 the component.
After electrical checks:
- Connect multi-pin connector to TCM -J217- pins (arrows) and lock connector.
- Performing On Board Diagnostic (OBD). On Board Diagnostic, Performing - A4 Platform (Late 1999 - on)
- Initiating basic setting. Basic Setting, Initiating
Transmission Control Module (TCM) -J217- 68-pin connector assignment (socket numbers on VAG 1598/18)
1- Ground (terminal 31)
2- Vacant
3- CAN-Bus Low input and output signals
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- Vacant
13- Vacant
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- Vacant
20- Vehicle Speed Sensor -G68-
21- Transmission Vehicle Speed Sensor -G38-
22- Solenoid valve 6 -N93- supply voltage
23- Supply voltage (terminal 15)
24- OBD K-wire
25- CAN-Bus High input and output signals
26- Vacant
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- Vacant
42- Vacant
43- Vehicle Speed Sensor -G68- (shielding)
44- Transmission Vehicle Speed Sensor -G38- (shielding)
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- Vacant
62- Multi-Function TR Switch -F125-(pin 6)
63- Multi-Function TR Switch -F125- (pin 1)
64- Vacant
65- Vehicle Speed Sensor -G68-
66- Transmission Vehicle Speed Sensor-G38
67- Solenoid valves voltage supply
68- Vacant
Overview of test steps
- Perform only those test steps recommended in the Diagnostic Trouble chart (DTC) and Measured Value Block tables
- Steps listed below according to component
