Checking Signal From Light Switch

Checking signal from light switch

Check, connectors and cables
Check the control module, display and light switch connectors for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the cable between the control module #B4 and display terminal 14 and cable between display terminal 14 and light switch terminal 1 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.

Other information:
- To access/replace the control module, see Replacing the control module, old system Replacing the Control Module, Old System.
- To access/replace the display, see Replacing the display Replacing the Display.
- For further information about the circuit from the light switch, see Wiring Diagram.
- For connecting breakout box, see Connecting the breakout box Connecting the Breakout Box.

















Continue - Verification

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Verification

Hint: After carrying out the repair, check that the fault has been remedied as follows:












- Ignition off.
- Reconnect connectors, reinstall components.
- RTI control module connected.
- Ignition on
- Activate the RTI system with the remote control.
Switch the car lighting on and off with the light switch, the display lighting should change.

Is this function OK?

Yes - Fault has been remedied

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test


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