Operation CHARM: Car repair manuals for everyone.

Signal Missing. Intermittent Fault






Signal missing. Intermittent fault

Checking wiring and components
Check that the "Rear windshield defroster" relay 2/82 is correctly installed.
Check the rear electronic module connector and relay terminal 2/82 for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the cable between main fuse 11E/5 and "Rear windshield defroster" relay 2/82 terminal 5. Check the cable between main fuse 11D/5 and "Rear windshield defroster" relay 2/82 terminal 1. Check the cable between rear electronic module terminal D1 (#B01) and "Rear windshield defroster" relay 2/82 terminal 2 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.

Other information:
- For further information about signals and other values, see Signal specification Signal Specification.
- To connect the breakout box, see Connecting the breakout box Connecting Breakout Box, Rear Electronic Module (REM).
- When the relay is installed and not activated, the voltage at the relay guide should be 12 V.









Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - Exit fault-tracing

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Attempt New Test - Checking wiring and components

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