Operation CHARM: Car repair manuals for everyone.

GLA-114




BA. DTC 114

Condition





Possible Source
Fault in control module.

Fault Symptom(s)
Central locking system and alarm are completely unserviceable.

Start fault-tracing with BB.



BB1. Erasing Diagnostic Trouble Codes (DTCs)






Ignition on.
Erase diagnostic trouble codes (DTCs).


BB2. Reading Off Diagnostic Trouble Codes (DTCs)





Ignition on.
Read off diagnostic trouble codes (DTCs).
Does GLA-114 recur?
Yes: Go to BB3.
No: Go to BB4.


BB3. Replacing Component





Ignition off.
Before replacing control module,
Try a new ECC control module.
Then continue, Fault corrected


BB4. Intermittent Fault

Check control module connector for loose connections according to WWB5, and contact resistance and oxidation according to WWB6 WW. Checking Wiring and Connections Then continue, Operation done.