Tested Component List

1 - Automatic transmission control module (TCM) -J217-
- Control modules are checked by On Board Diagnostic (OBD)
2 - Engine control module (ECM)
3 - Data Link Connector (DLC)
4 - Conductor strip with transmission fluid temperature sensor -G93-
- -G93- is checked by On Board Diagnostic (OBD)
5 - Valve body
- The solenoid valves -N88-, -N89-, -N90-, -N91-, -N92-, -N93- and - N94- are attached to the valve body
- Components are checked by On Board Diagnostic (OBD)
6 - Multi-function transmission range (TR) switch -F125-
- Checked by On Board Diagnostic (OBD)
7 - Sensor for transmission RPM -G182-
- Records the transmission input speed
- Checked by On Board Diagnostic (OBD)
- Refer to Valve Body, Service And Repair
8 - Transmission vehicle speed sensor (VSS) -G38-
- Records transmission output speed
- Checked by On Board Diagnostic (OBD)
- Refer to Valve Body, Service And Repair
9 - Tiptronic switch -F189-
- Location: The Tiptronic switch is integrated in the printed circuit for the symbol insert in the cover on the selector mechanism.
- Switch consists of 3 Hall sensors actuated by magnets.
- The switch can be checked in measured value block See "How to Read Measured Value Block" and in the electrical check, See Electrical Testing (TCM Pinout Charts).
- If the switch malfunctions the gear selector symbol insert with integral printed circuit must be replaced
10 - Shift lock solenoid -N110-
- Can be checked electrically, see Electrical Testing (TCM Pinout Charts) and in measured value block, see "How to Read Measured Value Block"
11 - Throttle position (TP) sensor -G69-
- The throttle position signal is transmitted to the transmission control module via the engine control module. The signal can only be checked in measured valve block, see "How to Read Measured Value Block". If the OBD indicates a malfunction in the throttle position sensor also perform OBD for the engine control module.
- The signal of throttle position sensor is checked by On Board Diagnostic (OBD).
Check for relevant engine code.
12 - Cruise control switch -E45-
- Can be checked in the electrical test. See Electrical Testing (TCM Pinout Charts).
13 - Starting interlock relay -J207-
14 - Transmission range (TR) selector lever display -Y6-
- If all segments of selector lever position indicator light up together or selector lever position indicator does not light up at all, the transmission is in emergency running mode See "Description and Operation" for safety functions of transmission control module. Description and Operation
15 - Kick down switch -F8-
- When removing and installing kick down switch, remove and install the throttle cable, then adjust afterwards
- Adjusting throttle cable
- Can be checked electrically. See Electrical Testing (TCM Pinout Charts) and via measured value block, see How to Read Measured Value Block.
16 - Brake light switch -F-
- Removing and installing
See Assembly overview: Pedal cluster, brake pedal
- Can be checked electrically. See Electrical Testing (TCM Pinout Charts) and via measured value block, see How to Read Measured Value Block.