Siren Internal Failure - Mercedes-Benz Sprinter 2003 Manual

Symptom:

SIREN INTERNAL FAILURE

When Monitored and Set Condition:
SIREN INTERNAL FAILURE
When Monitored: Whenever the battery voltage is above 10.0 volts and the Security
System Module is connected.
Set Condition: If the Siren internal test fails this DTC will set.
DTC PRESENT
SIREN ACTUATION
SIREN
TEST
1 With the DRBIII , record and erase DTC's.
Remove the ignition key.
Close and lock all doors and set the Vehicle Theft Security System.
Wait 1 minute.
Disarm the Vehicle Theft System.
With the DRBIII , read DTC's.
Does the DRBIII display the same DTC?
Yes → Go To 2
→ Using the wiring diagram/schematic as a guide, inspect the
No
2 With the DRBIII , actuate the Siren.
Did the siren sound with the actuation and does the Siren function properly
otherwise?
Yes → This DTC can be ignored if there are no other complaints with the
→ Replace the Siren.
No
POSSIBLE CAUSES
ACTION
wiring and connectors for an intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
operation of the Siren.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
VEHICLE THEFT/SECURITY
235
APPLICABILITY
All
All