B1519
Hood Switch Circuit Failure
B1519 is an OBD-II diagnostic trouble code meaning: Hood Switch Circuit Failure. Common causes: open or shorted wiring harness, oxidation of limit switch contacts. Estimated repair cost: $11–56.
Symptoms
- False warning about an open hood on the instrument panel
- Inability to start the engine (on some models)
- Non-activation of automatic start (if provided)
Causes
- Open or shorted wiring harness
- Oxidation of limit switch contacts
- Mechanical damage to the switch
- Problems with the relay (if there is one in the circuit)
- Short circuit to ground or power
How to Fix
- Visual inspection of the hood limit switch and its contacts
- Checking the integrity of the wiring harness from the switch to the control unit
- Testing the resistance of the switch in the OPEN/CLOSE positions
- Checking the voltage in the circuit (5V usually)
- Replacing a faulty component (switch, relay, harness repair)
Related codes
FAQ
What does the B1519 code mean?
B1519 is an OBD-II diagnostic trouble code that indicates: Hood Switch Circuit Failure
What causes a B1519 error code?
The most common causes of B1519 include: Open or shorted wiring harness; Oxidation of limit switch contacts; Mechanical damage to the switch; Problems with the relay (if there is one in the circuit).
How do I fix a B1519 diagnostic trouble code?
To fix B1519: Visual inspection of the hood limit switch and its contacts. Checking the integrity of the wiring harness from the switch to the control unit. Testing the resistance of the switch in the OPEN/CLOSE positions. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1519?
Limited driving only, diagnose soon
How much does it cost to fix B1519?
The estimated repair cost for B1519 is $11–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat