Checking the power supply and ground for the road traffic information module (RTI)
Check the fuse in the cargo compartment fusebox for the road traffic information module (RTI).
If the fuse has blown, check the circuit after the fuse before replacing the fuse. Check for a short-circuit to ground. Then replace the fuse. For further information about the circuit after the fuse, refer to the appropriate wiring diagram.
Also check the fuses in the passenger compartment fusebox for the display for the road traffic information module (RTI).
Check the road traffic information module (RTI) connector. Check for contact resistance and oxidation.
Check the power supply cable for the road traffic information module (RTI). Check for an open-circuit.
Check the ground cable between the road traffic information module (RTI) and the ground terminal. Check for an open-circuit. Also check the ground terminal. Check for contact resistance and oxidation.
Remedy as necessary.
Other information:
- To access or replace the road traffic information module (RTI), see Road traffic information module (RTI), replacing
- To access or replace the fuses in the passenger compartment fusebox, see Fusebox, passenger compartment, replacing
- To access or replace the fuses in the cargo compartment integrated relay/fusebox, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing
- To connect the breakout box, see Connecting the breakout box to the Road Traffic Information (RTI) control module
- For information about signals and connectors, see Signal specification, RTI
- For information about checking wiring and terminals see Checking wiring and terminals .
Was a fault detected?
- YES
Refer to Checking the function of the road traffic information module (RTI)
- NO
Refer to Signal missing