Output Diagnostic Test Mode (DTM) (Function 03)
Output Diagnostic Test Mode (DTM) (Function 03)
NOTE:
There are two different transmissions:
- Transmission with hydraulic controls -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 the valve body at the transmission housing.
Output Diagnostic Test Mode (DTM) (Scan Tool Function 03), Transmissions With Hydraulic Regulation -E17-
NOTE:
- The Output Diagnostic Test Mode (DTM) can only be performed when the ignition is switched off, the selector lever is in position "P", the engine is not running, and the vehicle is stationary.
- DTM will be terminated when the engine is started.
- The function of solenoid valves 1 -N88-, 2- N89-, 3 -N90- and the solenoids for the selector lever lock are checked acoustically during the DTM. Avoid noise in the surrounding area during the acoustic check, because the switching noise (clicking) of the actuators is very quiet.
- The solenoid valves 4 -N91-, 5 -N92-, 6 -N93- and 7 -N94- are activated during the DTM. 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 (DTM), the individual actuators will be activated until the -> button is pressed.
- Only one complete DTM is possible after switching the ignition on. To repeat DTM, 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 Valve Relay
Test sequence
- Connect VAS 5051 tester or V.A.G 1551 scan tool and enter address word 02 for "Control module for Transmission electronics". Scan Tool Connecting and Initial Checks
Ignition must be switched off during this process.
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
- Press Q- button to confirm entry.
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 1 -N88
- Valve is activated (clicks). To switch to next actuator press -> key.
- If valve does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 2 -N89
- Valve is activated (clicks) To switch to next actuator press -> key.
- If valve does not click, perform electrical check. Electrical Testing
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 3 -N90
- Valve is activated (clicks). To switch to next actuator press -> key.
- If valve does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Selector lever lock solenoid -N110
- Solenoid is activated (clicks). Switch to next actuator press -> key.
- If solenoid does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 4 -N91
- Valve is activated (clicks). To switch to next actuator press -> key.
Electrical malfunctions will be stored in DTC memory. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 5 -N92
- Valve is activated (clicks). To switch to next actuator press -> key.
Electrical malfunctions will be stored in DTC memory. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 6 -N93
- Valve is activated (clicks). Switch to the next actuator press -> key.
Electrical malfunctions will be stored in DTC memory. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve 7 -N94
- Valve is activated (clicks). To switch to next actuator press -> key.
Electrical malfunctions will be stored in DTC memory. Transmission Control Systems
Indicated on display
Output Diagnostic Test Mode ->
Kick-down switch -F8
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 (TCM) 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 kick-down switch -F8- Electrical check. Electrical Testing
- Press -> key to switch to the next actuator.
Indicated on display
Output Diagnostic Test Mode ->
Solenoid valve relays
- Solenoid valves activated in position "P" are activated (click), press -> key to switch to the next actuator.
- Can be disregarded.
- Press -> key.
Indicated on display
Output Diagnostic Test Mode ->
End
- Press -> key
Indicated on display
Function is unknown or ->
cannot be performed at this time
- Pressing the -> key will terminate the Output Diagnostic Test Mode.
Indicated on display:
Rapid data transfer HELP
Select function XX
- To repeat Output Diagnostic Test Mode, the ignition must be switched off and then on again. Now select function 03 - Output Diagnostic Test Mode again.
Output Diagnostic Test Mode (DTM) (Scan Tool Function 03), Transmissions With Hydraulic Regulation -E18/2-
NOTE:
- The Output Diagnostic Test Mode (DTM) can only be performed when the ignition is switched off, the selector lever is in position "P", the engine is not running, and the vehicle is stationary.
- DTM will be terminated if the engine is started.
- The function of solenoid valves 1 -N88-, 2 -N89-, 3 -N90- and the solenoids for the shift lock are checked acoustically during DTM. Avoid noise in the surrounding area during the acoustic check, because the switching noise (clicking) of the final controls is very quiet.
- The pressure control valves 1 -N215-, 2- N216-, 3 -N217- and 4 -N218- are activated during DTM. A direct functional check of these valves is not possible. But possible electrical faults which occur during the activation will be recognized and stored in DTC memory.
- When performing the Output Diagnostic Test Mode (DTM) the individual actuators will be activated until the -> button is pressed.
- Only one complete DTM is possible after switching the ignition on. To repeat DTM, 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. Pressure Control Valve -1- for Auto. Transmission -N215-
6. Pressure Control Valve -2- for Auto. Transmission -N216-
7. Pressure Control Valve -3- for Auto. Transmission -N217-
8. Pressure Control Valve -4- for Auto. Transmission -N218-
9. Voltage supply for solenoid valves
Test sequence
- Connect VAS5051 tester or V.A.G 1551 scan tool and enter address word 02 for "Control module for transmission electronics". Scan Tool Connecting and Initial Checks
Ignition must be switched off during this process.
Indicated on display:
Rapid data transfer HELP
Select function XX
- Press keys 0 and 3. (03 selects function "Output Diagnostic Test Mode").
Indicated on display
Rapid data transfer Q
03 - Output Diagnostic Test Mode
- Confirm entry with Q button.
Indicated on display:
Output Diagnostic Test Mode (DTM)
Shift valve 1 = Solenoid Valve 1 -N88
- Valve is activated (clicks), to switch to the next actuator press -> key.
- If valve does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Shift valve 2 = Solenoid Valve 2 -N89
- Valve is activated (clicks) To switch to next actuator press -> key.
- If the valve does not click, perform electrical check3. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Shift valve 3 = Solenoid Valve 3 -N90
- Valve is activated (clicks). To switch to the next actuator press -> key.
- If valve does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Shift lock Solenoid -N110
- Solenoid is activated (clicks). To switch to the next actuator press -> key.
- If solenoid does not click, perform electrical check. Electrical Testing
- Malfunction is stored in DTC memory, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Press. control valve -1- for auto. trans. -N215
- Pressure control valve -N215- is activated (clicks). To switch to the next actuator press -> key.
- Electrical malfunctions will be stored in DTC, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Press. control valve -2- for auto. trans. -N216
- Pressure Control valve -N216- is activated (clicks). To switch to the next actuator press -> key.
- Electrical malfunctions will be stored in DTC, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Press. control valve -3- for auto trans -N217
- Pressure Control valve -N217- is activated (clicks). To switch to the next actuator press -> key.
- Electrical malfunctions will be stored in DTC, DTC table. Transmission Control Systems
Indicated on display:
Output Diagnostic Test Mode (DTM)
Press control valve 4- for auto. trans. -N218
- Pressure Control valve -N218- is activated (clicks) To switch to next actuator press -> key.
- Electrical malfunctions will be stored in DTC memory, DTC table. Transmission Control Systems
NOTE: "Pressure Regulating Valve -5- for Automatic Transmission -N233-" could now be displayed erroneously due to a software error even though it does not exist. Disregard this display. Press -> button to switch to the next actuator.
Output Diagnostic Test Mode (DTM)
Press reg. valve -5- for auto trans. -N233
Indicated on display:
Output Diagnostic Test Mode (DTM)
Voltage supply for solenoid valves
Solenoid valves activated in position "P" are activated (click). Press -> key to switch to the next actuator.
- Can be disregarded.
- Press -> key.
Indicated on display
Function is unknown or ->
cannot be carried out at the moment
- Pressing the -> key will terminate Output Diagnostic Test Mode.
Indicated on display:
Rapid data transfer HELP
Select function XX
- To repeat Output Diagnostic Test Mode, switch ignition off and then on again. Now select function 03 - Output Diagnostic Test Mode again.