Breakout Box Connection
Breakout box connection
Special tools:
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428
981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495
Breakout box connection
Hint: The breakout box can be connected to the control module, CD player and TMC/FM receiver.
- Ignition off
- Release the control module following Replacing the control module, old system Replacing the Control Module, Old System.
- Release the CD player following Replacing, CD-ROM player Removal and Replacement.
- Release the TMC receiver following Replacing TMC receiver Replacing TMC Receiver.
- Release the FM receiver following Replacing the FM receiver Replacing the FM Receiver.
- Release the screen following Replacing the display Replacing the Display.
- Disconnect the module.
- Check the module connectors to ensure that the male and female pins are whole and properly seated (cannot be pressed in). Check that the cables to the female pins are properly connected on the pins.
- Especially check the pins that relate to the diagnostic trouble code/symptom; see Signal specification Road Traffic Information (RTI) Signal Specification Road Traffic Information (RTI).
Breakout box connection, continued
Connect adapter 981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495 to the module connectors (toward the wiring) and connect breakout box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 to the adapter.
Control module connections #A1-#A30 correspond to #1-#30 on the breakout box and #B1-#B16 correspond to #31-#46 on the breakout box.
CD player connections #1-#16 correspond to #31-#46 on the breakout box.
TMC/FM receiver connections #1-#10 correspond to #47-#56 on the breakout box.
Breakout box connection, continued
The breakout box is designed to make it easier to read control module output and input signals when the module is connected and the resistance of the cables and components when the module is disconnected. Using the breakout box reduces the risk of unintentionally short-circuiting cables or damaging connector pins.
Note! As the TMC/FM receiver does not have its own ground connection, there is no need to check TMC/FM receiver ground terminals.