Electrical and Electronic Components and Locations
Electrical and Electronic Components and Locations
1 Transmission Control Module (TCM) (J217)
• The control module transmits and receives data from data bus..
• Location and removing and installing --> [ ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
2 Engine Control Module (ECM)
• The control module transmits and receives data from the data bus
3 Multi-Function Transmission Range (TR) Switch (F125)
• Location --> [ ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
• Removing, installing and adjusting --> [ Multi-Function Transmission Range Switch ] Service and Repair.
4 Valve body
• Location --> [ Valve body ]
• Components can be checked using "Guided Fault Finding" of (VAS 5051)
5 Wiring harness, 8-pin
• For sensors
• With Transmission Fluid Temperature Sensor (G93)
• Location --> [ Wiring harness, 8-pin ]
6 Transmission Fluid Temperature Sensor (G93)
• Location --> [ Wiring harness, 8-pin ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
7 Wiring harness, 14-pin
• For solenoid valves
• Location --> [ Wiring harness, 14-pin ]
8 Automatic Transmission Hydraulic Pressure Sensor 1 (G193)
• Not installed in all transmissions
• Location --> [ and ]
9 Automatic Transmission Hydraulic Pressure Sensor 2 (G194)
• Not installed in all transmissions
• Location --> [ and ]
10 Transmission Input Speed (RPM) Sensor (G182)
• Location --> [ and ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
11 Transmission Output Speed (RPM) Sensor (G195)
• Location --> [ and ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
12 Shift lock solenoid (N110)
• Location: Shift lock solenoid is located in selector mechanism.
• Can be checked using "Guided Fault Finding" of (VAS 5051)
13 Tiptronic switch (F189)
• Location --> [ ]
• Can be checked using "Guided Fault Finding" of (VAS 5051)
14 Power Supply Relay (terminal 50) (J682)
• In E box in engine compartment.
15 Data Link Connector (DLC)
• Location --> [ Data Link Connector (DLC) ]
16 Transmission Range (TR) Display (Y6)
Transmission Control Module (TCM) (J217) - arrow -
Location: Control module is located in front left wheel housing.
- Wheel housing liner must be removed for removing and installing.
Multi-Function Transmission Range (TR) Switch (F125)
Location: Multi-Function Transmission Range (TR) Switch is located on top of transmission.
Valve body
Location: Valve body is bolted to underside of transmission housing and covered by pan.
Solenoid valves (N88) and (N89) as well as pressure control valves (N90), (N91), (N92), (N93), (N282) and (N283) are secured to valve body.
Wiring harness, 8-pin
• Wiring harness for sensors
• With integrated Transmission Fluid Temperature Sensor (G93) - arrow -
Location: Wiring harness is attached to valve body in transmission.
Wiring harness, 14-pin
• Wiring harness for solenoid valves.
Location: Wiring harness is attached to valve body in transmission.
Automatic Transmission Hydraulic Pressure Sensor 1 (G193) and Automatic Transmission Hydraulic Pressure Sensor 2 (G194)
This sensor is not installed in all transmissions.
Location: If transmission is equipped with this sensor, it is located in valve body.
1 Automatic Transmission Hydraulic Pressure Sensor 1 (G193)
2 Automatic Transmission Hydraulic Pressure Sensor 2 (G194)
Transmission Input Speed (RPM) Sensor (G182) and Transmission Output Speed (RPM) Sensor (G195)
Location: Sensors are installed in transmission housing above valve body.
1 Transmission Input Speed (RPM) Sensor (G182)
2 Transmission Output Speed (RPM) Sensor (G195)
Tiptronic switch (F189)
Location: Tiptronic switch is integrated into selector mechanism.
In vehicles with a multifunctional steering wheel, buttons on steering wheel and their cable connections must also be checked.
Data Link Connector (DLC)
Location: Data Link Connector (DLC) - arrow - is located on left below driver storage compartment.
Transmission Range (TR) Display (Y6)
Location: In instrument cluster