Fault code 49: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 49)

Work instruction			Display OK	If not OK
1	Check the wire from data link connector to alarm system control module for short circuit to ground	Pull plug A off the alarm system control module Measure resistance between plug A on alarm system control module pin 2 and ground	Step 2	Repair wiring harness -> End
2	Check the wire from data link connector to alarm system control module for short circuit to B+	Switch on ignition Measure voltage between plug A on control module pin 2 and ground	0 V Step 3	Repair wiring harness -> End
3	Check the wire from the data link connector to the alarm system control module for open circuit	Switch off ignition Measure resistance between plug A on control module pin 2 and pin 7 on the data link connector	< 5 Step 4	Repair wiring harness -> End
4	Replace control module		-> End