B1A37

B1A37-SECURITY TRANSMITTER SENSOR CIRCUIT LOW





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

- When Monitored:
When the VTSS is armed.

- Set Condition:
If the current flow on the sensor signal circuit is above a specified range this DTC will set.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Turn the ignition off and remove the key from the ignition.
4. Close all doors and arm the VTSS and wait two minutes.
5. Disarm the VTSS turn the ignition on.
6. Turn the ignition on and with the scan tool, read DTCs.

Does the scan tool display B1A37-SECURITY TRANSMITTER SENSOR CIRCUIT LOW ?

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 the BODY VERIFICATION TEST. Body Verification Test

2. INTRUSION SENSOR TRANSMITTER




1. Turn the ignition off.
2. Disconnect the Intrusion Sensor Transmitter connector.
3. Turn the ignition on and with the scan tool, erase DTCs.
4. Turn the ignition off and remove the key from the ignition.
5. Close all doors and arm the VTSS and wait two minutes.
6. Disarm the VTSS turn the ignition on.
7. With the scan tool, read DTCs.

Does the scan tool display B1A41-SECURITY TRANSMITTER SENSOR CIRCUIT OPEN?

Yes

- Replace the Intrusion Sensor Transmitter.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Go To 3

3. CHECK THE (A645) INTRUSION TRANSMITTER SENSOR SIGNAL CIRCUIT SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Intrusion Transceiver Module connector.
3. Measure the resistance between ground and the (A645) Intrusion Transmitter Sensor Signal circuit at the Intrusion Transceiver Module connector.

Is the resistance below 5.0 ohms?

Yes

- Repair the (A645) Intrusion Transmitter Sensor Signal circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Replace the Intrusion Transceiver Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test