Multi-Function Transmission Range (TR) Switch F125, Checking

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Multimeter
Wiring diagram

Requirements

Fuse S231 OK.
The Control Module with indicator unit in the Instrument Cluster Control Module J285 must be OK.
The selector lever cable adjustment OK.
The battery voltage must be at least 12.5 Volts.

All electrical consumers must be switched off.
The parking brake must be engaged.
The selector lever must be in the "P" position.
The Ground (GND) connections to transmission must be OK.

Procedure

Switch the ignition on.
Depress the brake pedal and maintain depressed.
Shift the selector lever into all positions.

The selector lever position must correspond with the Tiptronic Switch F189 indicator display unit.

Switch the ignition off.

If the selector lever position does not correspond with the Tiptronic Switch F189 indicator display unit:

Fig 1: Transmission Fluid Temperature Sensor G93 & Input Speed Sensor G182 Electrical Harness Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect the Multi-Function Transmission Range (TR) Switch F125 electrical harness connector - 1 -.
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
Repair any damage found to the electrical harness connector.

If the electrical harness connector is not OK:

Repair the malfunction.

If the electrical harness connector is OK:

Checking voltage

Switch the ignition on.
Using a multimeter, check the Multi-Function Transmission Range (TR) Switch F125 electrical harness connector terminal 7/B to Ground (GND) for voltage.

Specified value, Battery voltage.

Switch the ignition off.

If the specified value was not obtained:

Check the wiring from the Multi-Function Transmission Range (TR) Switch F125 electrical harness connector terminal 7/B to the Ignition/starter switch for an open circuit, short to ground (GND) or a short to Battery (+).
If necessary, repair the faulty wiring connection.

If the specified value was obtained:

Checking Ground (GND)

Using a multimeter, check the Multi-Function Transmission Range (TR) Switch F125 electrical harness connector terminal 10/31 to Ground (GND) connection for resistance.

Specified value: 1.5 Ω Max.

If the specification was not obtained:

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
If necessary, repair the faulty wiring connection.

If no malfunction was found in the wiring and the resistance was OK:

Checking wiring

If the manufacturers test box is being used. Perform the following step.

Test Box 105 Pin VAG1598/31

If the manufacturers test box is not being used. Perform the following step.

Remove the Transmission Control Module (TCM) J217. Refer to → Transmission Control Module (TCM) J217, Replacing .

Fig 2: Identifying 10-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Using a multimeter, check the Multi-Function Transmission Range (TR) Switch F125 electrical harness connector terminals to the Transmission Control Module (TCM) J217 electrical harness connector terminals for an open circuit.

Multi-Function Transmission Range (TR) Switch F125 electrical harness connector terminals	Transmission Control Module (TCM) J217 electrical connector terminals or test box sockets
1	55
2	36
3	8
4	37
5	9

Specified value: 1.5 Ω Max.

If the specification was not obtained:

Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
If necessary, repair the faulty wiring connection.

If no malfunction was found in the wiring and the resistance was not OK:

Replace the Multi-Function Transmission Range (TR) Switch F125. Refer to
- for 5 SPD. AUTOMATIC TRANSMISSION 01V
- for 5 SPD. AUTOMATIC TRANSMISSION 01V FRONT AND ALL WHEEL DRIVE - INTERNAL COMPONENTS, SERVICING
- for 6 SPD. AUTOMATIC TRANSMISSION 09L ALL WHEEL DRIVE
, Multi-Function Transmission Range (TR) Switch F125, Removing and Replacing.

If no malfunction is found in the wiring and the resistance was OK:

Replace the Transmission Control Module (TCM) J217. Refer to → Transmission Control Module (TCM) J217, Replacing .

Final procedures

Check the DTC memory.
If necessary, erase the DTC memory. Refer to Diagnostic Mode 04 - Reset/Delete Diagnostic Data .
If the DTC memory was erased, generate readiness code. Refer to Readiness Code Description .