Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking the cable
Check the wiring. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault. Check for a short-circuit to ground. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the wiring for all the courtesy lighting.
There are 4 lamps; left front, right front, left rear and right rear.
Check the cable between central electronic module (CEM) terminal #2E and terminal #2 on each lamp. Check that terminal #1 on each lamp is grounded.
Also check the connector for the wiring to the rear courtesy lighting.
Remedy as necessary.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- For information about signals, see Signal specification Signal Specification
- To replace the front courtesy lighting, see Courtesy lighting, front, replacing Courtesy Lighting, Front, Replacing
- To replace the rear courtesy lighting (-2004), see Courtesy lighting, rear, replacing Courtesy Lighting, Rear, Replacing
- To replace the courtesy lighting (2005-), see Courtesy lighting, rear, replacing Courtesy Lighting, Rear, Replacing.





Continue - Verification

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Verification




Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Connect the connectors, install the components, etc.
- Ignition on.
Read the value.
During normal operation the entrance lighting should use approximately 26W.





Does the entrance lighting work?

Yes - Verification completed

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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Attempt New Test - Checking the cable

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