B1613 Wiper Rear Mode Select Switch Circuit Short To Battery

Definition

Common causes

• Shorted wiring or connectors
• Faulty rear wiper mode select switch
• Corroded or damaged electrical connections
• Malfunctioning body control module (BCM)
• Grounding issues
• Water intrusion or moisture in the circuit

Common misdiagnoses

• Faulty rear wiper motor
• Defective wiper control module
• Wiring issues or shorts in the harness
• Malfunctioning body control module (BCM)
• Incorrectly installed or damaged wiper switch
• Issues with the vehicle's electrical system or battery
• Faulty ground connections

Troubleshooting steps

1. 1. Understand the Code

   B1613 typically relates to the rear wiper system and indicates that there is a short circuit in the mode select switch circuit, which is causing it to be continuously powered

2. 2. Visual Inspection

   Check Wiring and Connectors: Inspect the wiring harness and connectors associated with the rear wiper switch. Look for any signs of damage, fraying, or corrosion

3. 3. Inspect the Switch

   Check the rear wiper mode select switch for any physical damage or wear

4. 4. Check for Short Circuits

   Use a Multimeter: With the vehicle off, use a multimeter to check for continuity in the circuit. Disconnect the switch and measure resistance between the switch terminals and ground. A low resistance reading may indicate a short to battery

5. 5. Inspect Ground Connections

   Ensure that all ground connections are secure and free of corrosion

6. 6. Test the Rear Wiper Switch

   Functionality Test: If possible, test the rear wiper mode select switch for proper operation. You can do this by applying power to the switch and checking if it operates correctly

7. 7. Replace if Necessary

   If the switch is faulty, replacing it may resolve the issue

8. 8. Check the Wiper Motor

   Inspect the Wiper Motor: Sometimes, the issue may stem from the rear wiper motor itself. Check for any signs of damage or malfunction

9. 9. Test the Motor

   If you suspect the motor, you can test it by applying direct power to see if it operates correctly

10. 10. Scan for Additional Codes

    Check for Other Codes: Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues

11. 11. Clear Codes and Test Drive

    Clear the Code: After performing the above checks and repairs, clear the code using an OBD-II scanner

12. 12. Test Drive

    Take the vehicle for a test drive to see if the code reappears

13. 13. Consult Wiring Diagrams

    Refer to Service Manual: If the issue persists, consult the vehicle’s service manual for wiring diagrams and further troubleshooting steps specific to the make and model

14. 14. Seek Professional Help

    If you are unable to resolve the issue after these steps, it may be best to consult a professional mechanic or technician who can perform more advanced diagnostics. By following these steps, you should be able to identify and potentially resolve the issue related to the B1613 code