B1519
Hood Switch Circuit Failure
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)
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)