Meaning and Explanation of Error Code B0064
Error code B0064 means “Low resistance in the driver’s seatbelt pretensioner activation circuit.”
Error code B0064 indicates a problem with the driver’s seatbelt pretensioner activation circuit. The pretensioner is designed to quickly tighten the seatbelt during a collision, providing additional protection to the passenger. Error B0064 indicates low resistance in this circuit, which can lead to a malfunction of the safety system. This fault affects the vehicle’s passive safety system, specifically the Supplemental Restraint System (SRS). The presence of this error can affect the effectiveness of the seatbelt in an accident.
Symptoms of Error Code B0064
- The airbag indicator light on the dashboard illuminates.
- The SRS system may be disabled.
- The seatbelt pretensioner may not function correctly in an accident.
Main Causes of Error Code B0064
- Short circuit in the pretensioner circuit wiring
- Damaged or corroded connectors
- Pretensioner malfunction
- SRS control module malfunction
How to Diagnose Error Code B0064?
- Connect an OBD-II scanner and read the error codes.
- Check the wiring and pretensioner connectors for damage or corrosion.
- Measure the resistance of the pretensioner circuit.
- Check the SRS control module for malfunctions.
- Clear the error code and check if it reappears after starting the engine.
Possible Causes and Diagnostic Methods
| Possible Cause | How to Check? |
|---|---|
| Short circuit in wiring | Visual inspection, multimeter check |
| Damaged connector | Clean and inspect contacts |
| Pretensioner malfunction | OBD2 scanner diagnosis |
| SRS control module malfunction | Check error codes, test module |
Tools needed: OBD-II scanner, multimeter, wiring toolkit, contact cleaner
How to Fix Error Code B0064? (Solution to the problem)
Simple Troubleshooting Methods
- Clean and reconnect the pretensioner connector
- Replace damaged wires
- Reset the error code after fixing the problem
In-depth Diagnostic and Repair Solutions
- Replace the faulty pretensioner
- Repair or replace the SRS control module
- Check and replace other SRS components if necessary
Troubleshooting by Symptoms
| Symptom | Possible Solution |
|---|---|
| Airbag indicator light is on | Check and repair the pretensioner chain |
| SRS failure | Diagnosis and repair of the SRS control module |
B0064 Frequently Asked Questions
Can you drive with error code B0064?
It is not recommended, as the error indicates a malfunction in the passive safety system, increasing the risk of injury in an accident.
Will error B0064 disappear on its own?
In very rare cases, yes, if the contact is temporarily restored, but more often the problem requires diagnosis and repair.
Can disconnecting the battery reset B0064?
It can be reset, but if the fault is not repaired, the error will reappear after starting the vehicle.
Is error B0064 related to airbags?
Yes, because it belongs to the SRS system, and if the error occurs, the system may not function properly.
Do I need to contact a service center when B0064 appears?
Yes, for driving safety reasons, inexperienced self-troubleshooting may be unsafe.
Error Code B0064 in Common Vehicles
B0064 in Chevrolet: In Chevrolet vehicles, error B0064 is usually caused by damaged wiring or pretensioner connectors.
B0064 in GMC: In GMC, the cause of the error may be contact corrosion or a faulty SRS module.
B0064 in Saab: In Saab, error B0064 may be caused by an SRS system malfunction or a damaged pretensioner.
B0064 in Changan: In Changan vehicles, the error may be due to a short circuit in the pretensioner circuit.
B0064 in other vehicles: The B0064 error can also occur due to similar reasons related to the pretensioner chain.
B0064 Related OBD2 Errors
B0057 – Low resistance in the passenger seatbelt pretensioner activation circuit
B0065 – Driver seatbelt pretensioner activation circuit open
B0066 – Driver seatbelt pretensioner circuit voltage out of range
Important! Ignoring this error may lead to reduced effectiveness of the safety system in a collision. It is necessary to diagnose and eliminate the cause of the error to ensure safety.