W/Hydraulic Regulation E17 Output Diagnostic Test Mode (DTM)
Transmission With Hydraulic Regulation -E17-, Output Diagnostic Test Mode (DTM)
Output Diagnostic Test Mode, Performing
A differentiation is made between two types of transmissions:
- Transmission with hydraulic regulation -E17- , on which the transmission input speed sensor (inductive sensor) is secured to the underside of the valve body.
- Transmission with hydraulic regulation -E18/2-, on which the transmission input speed sensor (camshaft position sensor) is secured behind valve body at transmission housing.
Transmission With Hydraulic Regulation -E17-, Output Diagnostic Test Mode (DTM)
- The Output Diagnostic Test Mode is a part of the electrical test. The Output Diagnostic Test Mode checks the solenoid valves, the shift lock solenoid, the kick-down switch and the relay for the solenoid valves.
- The Output Diagnostic Test Mode can only be performed when the selector lever is in position "P", the engine is not running and the vehicle is stationary.
- The Output Diagnostic Test Mode will be terminated if the engine is started.
- The function of the solenoid valves 1 -N88-, 2 -N89-, 3 -N90- and the solenoids for the selector lever lock are checked acoustically during the Output Diagnostic Test Mode. Avoid noise in the surrounding area during the acoustic check, because the switching noise (clicking) of the final controls is very quiet.
- The solenoid valves 4 -N91-, 5 -N92-, 6 -N93- and 7 -N94- are activated during the Output Diagnostic Test Mode. A direct functional check of these valves is not possible. But possible electrical faults which occur during the activation, will be recognized by the On Board Diagnostic (OBD) and stored in the DTC memory.
- When performing the Output Diagnostic Test Mode the individual final controls will be activated until the -> button is pressed.
- Only one complete Output Diagnostic Test Mode is possible after switching the ignition on. To repeat the Output Diagnostic Test Mode the ignition must be switched off and on again.
Activation sequence
1. Solenoid valve 1 -N88-
2. Solenoid valve 2 -N89-
3. Solenoid valve 3 -N90-
4. Shift lock solenoid -N110-
5. Solenoid valve 4 -N91-
6. Solenoid valve 5 -N92-
7. Solenoid valve 6 -N93-
8. Solenoid valve 7 -N94-
9. Kick-down switch -F8-
(Kick-down for air conditioner)
10. Solenoid valves relay
Test sequence
- Connect scan tool V.A.G 1551 and enter address word "02 Transmission electronics" and advance until "Select function XX" appears in the display. Scan Tool VAG 1551, Connecting
Indicated on display:
Rapid data transfer HELP
Select function XX
- Press keys 0 and 3. (03 selects the function "Output Diagnostic Test Mode").
Indicated on display
Rapid data transfer Q
03 - Output Diagnostic Test Mode
- Confirm entry with key Q.
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 1 -N88
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve does not click, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 2 -N89
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve does not click, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 3 -N90
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve does not click, perform electrical check. See Page 01-183.
Indicated on display
Output Diagnostic Test Mode ->
Shift lock solenoid -N110
- Solenoid is activated (clicks), to move to the next final control press -> key.
- If solenoid does not click, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 4 -N91
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve is not activated, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 5 -N92
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve is not activated, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 6 -N93
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve is not activated, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 7 -N94
- Valve is activated (clicks), to move to the next final control press -> key.
- If the valve is not activated, perform electrical check. Control Module Pin Out Values
Indicated on display
Output Diagnostic Test Mode ->
Kick-down switch-F890
NOTE:
- It is not the kick-down switch -F8-, but the switch-off function for the air conditioner in transmission control module -J217- which is activated.
- If the kick-down switch is operated, the transmission control module Grounds the output to air conditioner. This briefly switches off the air conditioner compressor.
- Can be disregarded here.
- The signal can be checked in measured value block 011. Reading
- For checking function of the kick-down switch -F8-. Control Module Pin Out Values
- Press -> key to advance to next final control.
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valves relay
- Disregard display.
- Press -> key to advance to next final control.
Indicated on display
Function is unknown or ->
cannot be carried out at the moment
- Pressing the -> key will terminate the Output Diagnostic Test Mode.
Indicated on display:
Rapid data transfer HELP
Select function XX
- To repeat the Output Diagnostic Test Mode the ignition must be switched off and then on again, then again select the function 03 - Output Diagnostic Test Mode.