B1603
Lamp Anti-Theft Indicator Circuit Failure
B1603 is an OBD-II diagnostic trouble code meaning: Lamp Anti-Theft Indicator Circuit Failure. Common causes: open or short circuit in the indicator circuit, indicator malfunction. Estimated repair cost: $56–167.
Symptoms
- The anti-theft indicator does not light up
- Problems starting the engine
- False alarms
Causes
- Open or short circuit in the indicator circuit
- Indicator malfunction
- Problems in the wiring harness
- Malfunction of the anti-theft system control unit
How to Fix
- Check the integrity of the indicator circuit
- Check the indicator's operation
- Inspect the wiring harness for damage
- Check the anti-theft system control unit
Related codes
FAQ
What does the B1603 code mean?
B1603 is an OBD-II diagnostic trouble code that indicates: Lamp Anti-Theft Indicator Circuit Failure
What causes a B1603 error code?
The most common causes of B1603 include: Open or short circuit in the indicator circuit; Indicator malfunction; Problems in the wiring harness; Malfunction of the anti-theft system control unit.
How do I fix a B1603 diagnostic trouble code?
To fix B1603: Check the integrity of the indicator circuit. Check the indicator's operation. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1603?
Limited driving only, diagnose soon
How much does it cost to fix B1603?
The estimated repair cost for B1603 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat