TIPTRONIC Switch, Checking
The Selector Lever Sensor System Control Module -J587- and the Tiptronic Switch -F189- are combined into one component.
Special tools and workshop equipment required
- Multimeter
- Wiring diagram
Requirements
- Fuses -SB15 and SA20- OK.
- Selector Lever Sensor System Control ModuleJ587must be 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 V.
- 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:
-- Disconnect the Tiptronic Switch -F189- electrical harness connector -2-.
-- 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 Tiptronic Switch -F189- electrical harness connector terminal T10p/7 to Ground (GND) for voltage.
Specified value, Battery voltage.
-- Switch the ignition off.
If the specified value was not obtained:
-- If necessary, repair the faulty wiring connection.
If the specified value was obtained:
Checking Ground (GND)
-- Using a multimeter --, check the Tiptronic Switch -F189- electrical harness connector terminal 10p/6 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
-- Remove the Transmission Control Module (TCM) -J217-. Refer to TRANSMISSION CONTROL MODULE, REPLACING .
-- Using a multimeter --, check the Tiptronic Switch -F189- electrical harness connector terminals to the Transmission Control Module (TCM) -J217- electrical harness connector terminals for an open circuit.
| Tiptronic Switch -F189- electrical harness connector T10p terminals | Transmission Control Module (TCM) -J217- electrical connector T20e terminals |
|---|---|
| 3 | 20 |
| 4 | 13 |
| 5 | 19 |
| 6 | Gnd |
| 7 | Fuse SC6 |
| 8 | T32/17 of J285 |
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:
-- Replace the Transmission Control Module (TCM) -J217-. Refer to TRANSMISSION CONTROL MODULE, REPLACING .
-- Assembly is performed in the reverse of the removal.
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase DTC memory of the Transmission Control Module (TCM) -J217-. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- Generate readiness code. Refer to READINESS CODE .