Component Tests and General Diagnostics

Checking the ground terminals

Connecting the breakout box
Connect the breakout box. See Connecting the breakout box to the Road Traffic Information (RTI) control module Connecting the Breakout Box to the Road Traffic Information (RTI) Control Module.





Continue - Checking the ground terminal

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Checking the ground terminal








- Ignition off
- Module disconnected.
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
For the control module, DVD player and TV receiver, connect an ohmmeter between the battery negative terminal and terminal #11 on the breakout box.
For the display, connect an ohmmeter between the battery negative terminal and terminal #15 on the breakout box.








ohms
The ohmmeter should read approximately 0.

OK - FAULT FOUND

Not OK - contact resistance and oxidation

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Checking for open-circuits, contact resistance and oxidation
For the control module, DVD player and TV receiver, check ground terminal 31/72 and the wiring connected to it. Check for an open-circuit. Check for contact resistance and oxidation.
For the display screen,check ground terminal 31/84 and the wiring connected to it. Check for an open-circuit. Check for contact resistance and oxidation.

Other information:
- To fault-trace wiring and terminals, see Checking wiring and terminals Checking Wiring And Terminals.





Select Continue when the fault has been remedied.

Continue - Verification

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Verification








- Ignition off
- Module disconnected.
- Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).
For the control module, DVD player and TV receiver, connect an ohmmeter between the battery negative terminal and terminal #11 on the breakout box.
For the display, connect an ohmmeter between the battery negative terminal and terminal #15 on the breakout box.




ohms
The ohmmeter should read 0.

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

Do you want to terminate fault-tracing at this time?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Connecting the breakout box

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