b1243 gsw terminal circuit malfunction
B1243 GSW Terminal Circuit Malfunction
The OBD2 code B1243 indicates a malfunction in the GSW (Gear Shift Warning) terminal circuit. This code is specific to certain vehicle manufacturers and models, typically related to the electrical components of the gear shift system.
b1243 – gsw terminal circuit malfunction
Typical severity: Moderate
Common Causes
b1243 – gsw terminal circuit malfunction
Common causes:
- Faulty wiring or connections in the GSW terminal circuit
- Corrosion or damage to the GSW terminal
- Defective GSW switch
- Issues with the vehicle’s body control module (BCM)
Common Misdiagnosis
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OBD2 Code: B1243
Description: GSW Terminal Circuit Malfunction
Common Misdiagnosis: Faulty wiring or connectors are often misdiagnosed as a failed control module.
Common Diagnostic Steps
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OBD2 Code: B1243
Description: GSW Terminal Circuit Malfunction
Common Diagnostic Steps:
- Inspect the wiring and connectors for damage or corrosion.
- Check for any blown fuses related to the circuit.
- Test the voltage at the terminal to ensure it is within specifications.
- Use a multimeter to check for continuity in the circuit.
- Examine the ground connections for proper contact and integrity.
- If applicable, use a scan tool to clear the code and see if it returns after repairs are made.
- Consult the vehicle’s service manual for specific test procedures related to this code.