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.DB● LIVE
HOMESERVICE MANUALSCHRYSLER2007300 V6-2.7L VIN RREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONB CODE CHARTSB1A41
2007 Chrysler 300 V6-2.7L VIN R
B1A41
2007 Chrysler 300 V6-2.7L VIN RSECTION B1A41
B1A41-SECURITY TRANSMITTER SENSOR CIRCUIT OPEN
For a complete wiring diagram Refer to Diagrams/Electrical.
- When Monitored:
When the VTSS is armed.
- Set Condition:
If the voltage current is below a specified range this DTC will set.
Diagnostic Test
1.TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC's.
Turn the ignition off and remove the key from the ignition.
Close all doors and arm the VTSS and wait 1 minute.
Disarm the VTSS turn the ignition on and wait 1 minute.
With the scan tool, read DTC's.
Does the scan tool display B1A41-SECURITY TRANSMITTER SENSOR CIRCUIT OPEN?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
2.CHECK THE (A645) INTRUSION TRANSMITTER SENSOR SIGNAL CIRCUIT VOLTAGE
Disconnect the Intrusion Sensor Transmitter connector.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition on.
With the scan tool actuate the Intrusion Sensor Transmitter.
Measure the voltage between (A645) Intrusion Sensor Signal circuit and (G945) Intrusion Transmitter Sensor Ground circuit.
Is the voltage above 10.0 volts
Yes
- Go To3
No
- Go To 4
3.CHECK THE INTRUSION SENSOR TRANSMITTER
Turn the ignition is off.
Install a known good Intrusion Sensor Transmitter.
Turn the ignition on.
With the scan tool erase DTC's.
Turn the ignition off and remove the key from the ignition.
Close all doors and arm the VTSS and wait 1 minute.
Disarm the VTSS turn the ignition on and wait 1 minute.
With the scan tool, read DTC's.
Does the scan tool display B1A41-SECURITY TRANSMITTER SENSOR CIRCUIT OPEN?
Yes
- Replace the Intrusion Transceiver Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Replace the original Intrusion Sensor Transmitter.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
4.CHECK THE (A645) INTRUSION TRANSMITTER SENSOR SIGNAL WIRE
Turn the ignition is off.
Disconnect the Intrusion Transceiver Module connector.
Measure the resistance of the (A645) Intrusion Transmitter Sensor Signal circuit between the Intrusion Sensor Transmitter connector and the Intrusion Transceiver Module connector.
Is the resistance below 5.0 ohms?
Yes
- Repair the (A645) Intrusion Transmitter Sensor Signal circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To5
5.CHECK THE (G945) INTRUSION TRANSMITTER SENSOR GROUND WIRE FOR AN OPEN
Ensure Ignition is off.
Measure the resistance of the (G945) Intrusion Transmitter Sensor Ground circuit from the Intrusion Sensor Transmitter connector to the Intrusion Transceiver Module connector.
Is the resistance below 5.0 ohms?
Yes
- Replace the Intrusion Transceiver Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Repair the (G945) Intrusion Transmitter Sensor Ground circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.