Output Diagnostic Test Mode (Function 03)
NOTE:
- The Output Diagnostic Test Mode may only be performed with the vehicle stationary and the engine not running.
- Any malfunctions identified by the Output Diagnostic Test Mode must be checked and repaired.
The output DTM activates the following elements in sequence:
- Warning lamps next to door locking button on driver-side or passenger-side door
- An anti-theft warning system alarm
- Wiring for voltage supply to the ultra-sound sensors
- Wiring for pulse signal to the ultra-sound sensors
Carrying out "Output Diagnostic Test Mode" function 03
- Press buttons -0- and -3- to select "Output Diagnostic Test Mode" function 03.
Indicated on display
Rapid data transfer Q
03 - Output Diagnostic Test Mode
- Press -Q- button to confirm input.
Indicated on display
Output Diagnostic Test Mode ->
Alarm system Indicator Light -K95
Warning lamps next to the door locking button at the driver-side or passenger-side door are activated.
- Press -> button.
Indicated on display
Output Diagnostic Test Mode ->
Create active alarm
The control module sends an alarm signal to the anti-theft system control module for a signal test.
- Press -> button.
Indicated on display
Output Diagnostic Test Mode ->
Voltage supply wire
The control module sends a constant voltage of 8 V to test the wiring.
- Press -> button.
Indicated on display
Output Diagnostic Test Mode ->
Wire for cycle signal
The control module sends a constant voltage of 5 V to test the wiring.
- Press -> button
Indicated on display
Output Diagnostic Test Mode ->
END
- Press -> button.
The program is now back at its starting point.
Indicated on display
Rapid data transfer HELP
Select function XX
Testing alarm signal
- Switch ignition off and remove ignition key.
- Connect VAG 1551 Scan Tool (ST), and press buttons -4- and -5- to select "Int. Monitoring" address word 45.
- Close all doors and open one side window.
- Lock vehicle by reaching through open window. The anti-theft system horn confirms this, but warning lamps do not light up.
- Wait 30 seconds until anti-theft system is armed.
- Perform Output Diagnostic Test Mode and select control element test "Create active alarm."
NOTE:
- It is also possible to test the alarm activation signal without using the VAG 1551 Scan Tool (ST). To do this, carry out the first, third, fourth and fifth procedure steps listed above.
- The independent repair shop and the customer can thereby test the functional capability of the ultrasonic interior monitoring system.
Indicated on display
Output Diagnostic Test Mode ->
Create active alarm
Specification: anti-theft system (turn signals and anti-theft horn) is triggered.
- Shut off alarm by unlocking vehicle.
- End Output Diagnostic Test Mode (DTM).
- Initiate On Board Diagnostic (OBD) for anti-theft system.
- Erase DTC memory.
Checking power supply wiring
- Remove both ultra-sound sensors.
- Disconnect electronic harness connectors.
- Perform Output Diagnostic Test Mode and select output test "Power supply wiring."
Indicated on display
Output Diagnostic Test Mode ->
Power supply wiring
- Using multimeter (Fluke 83 or equivalent), measure voltage at wiring harness connector between terminal 2 (B+) and terminal 3 (GND).
- Specification: 8 V
- End Output Diagnostic Test Mode (DTM).
- Re-install ultra-sound sensors.
Checking wiring for pulse signal
- Remove both ultra-sound sensors.
- Disconnect electronic harness connectors.
- Perform Output Diagnostic Test Mode (DTM) and select control element test "Signal pulse wire."
Indicated on display
Output Diagnostic Test Mode ->
Signal pulse wire
- Using multimeter (Fluke 83 or equivalent), measure voltage at wiring harness connector between terminal I (pulse signal) and terminal 3 (GND).
- Specification: 5 V
- End Output Diagnostic Test Mode (DTM).
- Re-install ultra-sound sensors.
- Erase DTC memory (function 05)
- End Output (function 06)