Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 772
B1A3D-SIREN BATTERY TAMPER / LOSS OF POWER SUPPLY
For a complete wiring diagram Refer to Section 8W.
8Q - 56
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
LX
•
When Monitored:
Continuously with the VTSS armed.
•
Set Condition:
If the ITM detects incorrect voltage at the siren this code will set.
Possible Causes
HARNESS TAMPERING/INTERMITTENT CONDITION
SIREN GROUND OPEN
SIREN
Diagnostic Test
1.
INSPECT SIREN HARNESS
Inspect the wiring harness to the siren for any signs of tampering or intermittent condition.
Were there any problems found?
Yes
>> Repair wiring as necessary.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> Go To 2
2.
DETERMINING IF DTC IS CURRENT
With a scan tool, read and record DTC(s).
With the scan tool, clear DTC(s).
Turn the ignition off and remove the key from the ignition.
Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.
Disarm the VTSS.
Using the scan tool, read DTC(s).
Does the DTC reset?
Yes
>> Go To 3
No
>> DTC is not active at this time. Test complete.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
3.
CHECK THE FUSED B(+) CIRCUIT AT THE SIREN
Turn the ignition off.
Disconnect the Siren connector.
Using a 12-volt test light connected to ground, check the Fused B(+)
circuit at the siren connector.
Does the test light illuminate brightly?
Yes
>>
Go To 4
No
>> Repair the Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
LX
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
8Q - 57
4.
CHECK THE GROUND CIRCUIT AT THE SIREN
Using a 12-volt test light connected to 12-volts, check the Ground circuit
at the siren connector.
Does the test light illuminate brightly?
Yes
>> Replace the Siren in accordance with the Service Informa-
tion.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
8Q - 58
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
LX
B1A3E-SIREN / ITM MISMATCH
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
While the VTSS is armed.
•
Set Condition:
ITM losses battery voltage.
Possible Causes
CAN B BUS COMMUNICATION PROBLEMS
INTERMITTENT LOSS OF FUSED B(+) TO THE ITM WITH THE VTSS ARMED
Diagnostic Test
1.
DETERMINING IF DTC IS CURRENT
NOTE: Diagnose any related Communication DTC(s) before continuing.
With a scan tool, read and record DTC(s).
With the scan tool, clear DTC(s).
Turn the ignition off and remove the key from the ignition.
Lock and close all doors to allow the VTSS to go from pre-arm to armed status and wait one minute.
Disarm the VTSS.
Using the scan tool, read DTC(s).
Does the DTC reset?
Yes
>> Check for and correct any CAN B Bus DTC’s set in the ITM or other modules. Also check for intermit-
tent loss Fused B(+) to the ITM.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> DTC is not active at this time. Test complete.
Perform BODY VERIFICATION TEST – VER 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
LX
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
8Q - 59
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