B1467 – Wiper Hi/Low Speed Circuit Motor Short To Battery
The ODBII code B1467 indicates a malfunction in the wiper motor’s high/low speed circuit, specifically a short circuit to the battery, which means the wiper motor is receiving power continuously when it shouldn’t.
The severity of ODBII code B1467 is moderate.
Common Causes For: B1466 Wiper Hi/Low Speed Not Switching
- Shorted wiring or connectors
- Faulty wiper motor
- Defective wiper switch
- Corroded or damaged ground connections
- Malfunctioning relay
- Water intrusion or moisture damage
- Improper installation or aftermarket modifications
Common misdiagnosis for B1467 Wiper Hi/Low Speed Circuit Motor Short To Battery
- Wiper motor failure
- Faulty wiper switch
- Wiring harness issues
- Blown fuse
- Body control module malfunction
- Grounding issues
- Relay failure
Common Troubleshooting Steps
The OBD-II code B1467 indicates a problem with the wiper motor circuit, specifically a short to battery in the high/low speed circuit. Here are some common troubleshooting steps to diagnose and resolve this issue:
- Visual Inspection:
- Check the wiper motor and its wiring for any visible damage, such as frayed wires, corrosion, or loose connections.
- Inspect the wiper switch for any signs of wear or damage.
- Check Fuses:
- Locate the fuse box and check the fuses related to the wiper system. Replace any blown fuses and see if the issue persists.
- Test the Wiper Motor:
- Disconnect the wiper motor connector and use a multimeter to check for continuity and resistance in the motor. If the motor shows a short circuit (very low resistance), it may need to be replaced.
- Inspect the Wiring Harness:
- Follow the wiring from the wiper motor back to the control module. Look for any signs of wear, pinching, or damage that could cause a short circuit.
- Check the Wiper Switch:
- Test the wiper switch for proper operation. If the switch is faulty, it may send incorrect signals to the wiper motor.
- Scan for Additional Codes:
- Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues.
- Test Voltage and Ground:
- With the wiper motor connector still disconnected, use a multimeter to check for proper voltage and ground at the connector when the wiper switch is activated. Ensure that the voltage matches the specifications in the vehicle’s service manual.
- Check for Short Circuits:
- Use the multimeter to check for shorts in the wiring harness. This can be done by measuring resistance between the power and ground wires. A very low resistance reading indicates a short.
- Inspect the Control Module:
- If all other components check out, the issue may lie within the body control module (BCM) or the wiper control module. Testing or replacing the module may be necessary.
- Reassemble and Test:
- After making any repairs or replacements, reassemble the components, clear the codes, and test the wiper system to see if the issue has been resolved. If you are not comfortable performing these steps or if the problem persists after troubleshooting, it may be best to consult a professional mechanic for further diagnosis and repair.