Headlamp Switch Shorted to Ground

Tests 1 - 3:

Tests 4 - 5:

SYMPTOM
HEADLAMP SWITCH SHORT TO GROUND

WHEN MONITORED
Ignition ON

SET CONDITION
A Sensor voltage is below 0.488 volts for more than 0.0625 seconds.

POSSIBLE CAUSES
- Headlamp switch shorted
- Intermittent wiring and connectors
- Headlamp switch MUX circuit short to ground
- Headlamp switch MUX circuit short to MUX return circuit
- Body control module