Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHRYSLER2007300 V6-2.7L VIN RREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONB CODE CHARTSB1A43
2007 Chrysler 300 V6-2.7L VIN R
B1A43
2007 Chrysler 300 V6-2.7L VIN RSECTION B1A43
B1A43-SECURITY TRANSMITTER SENSOR RETURN CIRCUIT LOW
For a complete wiring diagram Refer to Diagrams/Electrical.
- When Monitored:
During the VTSS pre-arm process.
- Set Condition:
The Intrusion Transceiver Module detects a short to ground condition on the sensor ground circuit.
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
- Go To2
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- DTC is not active at this time. Test complete.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
2.CHECK THE (G945) SENSOR GROUND CIRCUIT SHORTED TO GROUND
Turn the ignition is off.
Disconnect the Intrusion Sensor Transmitter connector.
Disconnect the Intrusion Transceiver Module connector.
Measure the resistance between ground and the (G945) Intrusion Transmitter Sensor Ground circuit at the Intrusion Sensor Transmitter connector.
Is the resistance below 5.0 ohms?
Yes
- Repair the (G945) Intrusion Transmitter Sensor Ground circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Replace the Intrusion Transceiver Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.