B1A3C

B1A3C-INTERNAL SIREN BATTERY

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Continuously with the engine over 600 RPM.

- Set Condition:
When the internal battery within the siren does not charge as expected, the ITM sets this code.





1. DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT
1. With a scan tool, read and record DTCs.
2. With the scan tool, clear DTCs.
3. Start the engine and allow it to idle for two minutes then turn the engine off.
4. Using the scan tool, read DTCs.

Does the DTC reset?

Yes

- Go To 2

No

- DTC is not active at this time. Test complete.

2. VEHICLE STORED WITH NO BATTERY VOLTAGE FOR EXTENDED PERIOD OF TIME

NOTE: If the vehicle was allowed to sit with no battery voltage for an extended period of time the back up battery located in the siren may discharge and need to be recharged.

Was the vehicle battery power just restored after the vehicle was stored with no power for an extended period of time?

Yes

- Allow the vehicle to sit with a fully charged battery for two hours then restart this procedure.

No

- Replace the Siren.
- Perform the BODY VERIFICATION TEST. Body Verification Test