Fault code 58: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 58)

Work instruction			Display OK	If not OK
1	Check wire between ground point 7 and alarm system control module for opencircuit	Switch off ignition Pull plug B off the alarm system control module Measure the resistance between plug B pin 1 and ground	< 5 Step 2	Repair wiring harness -> End
2	Check the wiring from the switching element for the filler flap to the alarm system control module for short circuit to ground	Pull plug off switching element for filler flap Measure resistance between plug B on alarm system control module pin 5 and ground Measure resistance between plug B on alarm system control module pin 10 and ground	Step 3	Repair wiring harness -> End
2	Check the wiring from the switching element for the filler flap to the alarm system control module for open circuit	Measure resistance between plug B on alarm system control module pin 5 and pin 2 on plug of switching element for filler flap Measure resistance between plug B on alarm system control module pin 10 and pin 1 on plug of switching element for filler flap	< 5 Step 3	Repair wiring harness -> End
3	Check output signal of the alarm system control module	Select "Filler flap" in menu item "Drive links" Perform a drive-link test and simultaneously measure the voltage on the plug of the switching element for filler flap, pins 1 and 2	A short voltage pulse can be measured with the digital multimeter Step 4	Step 5
4	Replace switching element for filler flap		-> End
5	Replace control module		-> End