B0685
Security System Indicator Circuit Short to Ground
B0685 is an OBD-II diagnostic trouble code meaning: Security System Indicator Circuit Short to Ground. Common causes: short circuit in wiring harness, malfunction of the indicator lamp. Estimated repair cost: $56–167.
Symptoms
- The security light is flashing or not on
- Security error message on dashboard
- Disabling the restraint system
Causes
- Short circuit in wiring harness
- Malfunction of the indicator lamp
- Problems with the security module
- Corroded or damaged connectors
How to Fix
- Check the wiring harness for damage and corrosion.
- Check the functionality of the indicator lamp
- Carry out diagnostics of the security module
- Check the integrity of the indicator circuit
- Replace damaged components if necessary
Related codes
Error B0685 by Vehicle Brand
FAQ
What does the B0685 code mean?
B0685 is an OBD-II diagnostic trouble code that indicates: Security System Indicator Circuit Short to Ground
What causes a B0685 error code?
The most common causes of B0685 include: Short circuit in wiring harness; Malfunction of the indicator lamp; Problems with the security module; Corroded or damaged connectors.
How do I fix a B0685 diagnostic trouble code?
To fix B0685: Check the wiring harness for damage and corrosion.. Check the functionality of the indicator lamp. Carry out diagnostics of the security module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0685?
Do not drive — repair immediately
How much does it cost to fix B0685?
The estimated repair cost for B0685 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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