Checking cables
Check the cable between the RTI control module terminal and the audio unit terminal #E8 . Check for a short-circuit to supply voltage. See Short-circuit to supply voltage. Permanent faults . Check for a short-circuit to ground. See Short-circuit to ground, permanent faults . Check for an open-circuit. See Open-circuit, permanent faults .
Remedy as necessary.
Other information:
- To access and replace the display screen, see Display screen / loudspeaker, RTI (road traffic information), replacing
- To access or replace the audio control module:
- For -2004, see:Radio cassette player, replacing .
- For 2005-, see:Audio unit, replacing .
- For information about programming and replacing the road traffic information (RTI) control module, see Road traffic information module (RTI), replacing
- To connect the breakout box, see Connecting the breakout box to the Road Traffic Information (RTI) control module
- For information about RTI signals and connectors, see Signal specification, RTI
- For information about audio control module signals and connectors, see Signal specification, audio control module .