Checking the Ground Terminal in the RTI System

Checking ground terminals

Connecting the breakout box
Connect breakout box according to 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 ground terminal

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Checking ground terminal








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








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, CD-ROM changer and TV receiver, check ground terminal 31/72 and the wiring connected to it for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
For the display, check ground terminal 31/84 and the wiring connected to it for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.





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, CD-ROM changer and TV receiver, connect an ohmmeter between #11 on the breakout box and battery negative terminal.
For the display, connect an ohmmeter between #15 on the breakout box and battery negative terminal.




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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