Operation CHARM: Car repair manuals for everyone.

Output Diagnostic Test Mode (DTM) (Function 03)




Output Diagnostic Test Mode (function 03)


NOTE:

- Output Diagnostic Test Mode can only be performed with vehicle stationary and engine stopped.
- If Output Diagnostic Test Mode detects a fault, locate and eliminate cause of problem if necessary.


The following control elements are consecutively actuated in the test:
- Actuation of warning lamps next to locking knob on driver's/front passenger door
- Triggering of anti-theft alarm (no function)
- Actuation of wire for supplying power to ultrasonic sensors
- Actuation of wire for pulse signal to ultrasonic sensors


NOTE: This test cannot be used to trigger anti-theft alarm. To trigger anti-theft alarm, perform control element test by way of central locking control module or by checking operation. "Refer to Scan Tool Testing/Output Diagnostic Test Mode (DTM) (Function 03)" Under "Locks/Power Locks", Testing and Inspection . Check Control Module Versions (Function 01)


Implementing function "03 - Output Diagnostic Test Mode"

- Press keys 0 and 3.

Indicated on display:


Rapid data transfer Q
03 -Output Diagnostic Test Mode



- Confirm entry with Q key.

Indicated on display:


Output Diagnostic Test Mode ->
Alarm system warning lamp -K95



The warning lamps next to the locking knob on driver's/front passenger door are actuated.

- Press -> key.

Indicated on display:


Output Diagnostic Test Mode ->
Alarm triggering



The control module transmits an alarm signal to the anti-theft alarm control module for checking signal (no function).

- Press -> key.

Indicated on display:


Output Diagnostic Test Mode ->
Power supply wire



For checking wire the control module transmits a constant voltage of 8 V.

- Press -> key.

Indicated on display:


Output Diagnostic Test Mode ->
Wire for pulse signal



For checking wire the control module transmits a constant voltage of 5 V.

- Press -> key.

Indicated on display:


Output Diagnostic Test Mode ->
End



- Press -> key.

Tester returns to basic function.

Indicated on display:


Rapid data transfer HELP
Select function XX



Checking power supply wire
- Remove the two ultrasonic sensors.
- Unplug connectors.
- Perform Output Diagnostic Test Mode and select control element test "Power supply wire".

Indicated on display:


Output Diagnostic Test Mode ->
Power supply wire



- Use portable multimeter V.A.G 1526 to measure voltage at wiring-harness connector between contact 2 (power supply) and contact 3 (Ground).
Specification: 8 V
- Terminate Output Diagnostic Test Mode.
- Re-install ultrasonic sensors.
- Erase DTC Memory (function 05).
- End Output (function 06).

Checking wire for pulse signal
- Remove the two ultrasonic sensors.
- Unplug connectors.
- Perform Output Diagnostic Test Mode and select control element test "Pulse signal wire".

Indicated on display:


Output Diagnostic Test Mode ->
With for pulse signal



- Use portable multimeter V.A.G 1526 to measure voltage at wiring-harness connector between contact 1 (pulse signal) and contact 3 (Ground).
Specification: 5 V
- Terminate Output Diagnostic Test Mode.
- Re-install ultrasonic sensors.
- Erase DTC Memory (function 05).
- End Output (function 06).