B1792
Autolamp Sensor Input Circuit Short To Battery
B1792 is an OBD-II diagnostic trouble code meaning: Autolamp Sensor Input Circuit Short To Battery. Common causes: short circuit in wiring harness, light sensor malfunction. Estimated repair cost: $33–111.
Symptoms
- Incorrect operation of automatic headlights
- Headlights turn on/off randomly
- The malfunction indicator light is on
- Automatic light system does not work
Causes
- Short circuit in wiring harness
- Light sensor malfunction
- Damage to wiring insulation
- Problems in the lighting control unit
- Contact corrosion
How to Fix
- Carry out diagnostics with a scanner to confirm the code
- Visually check the condition of the wiring harness to the sensor
- Check the resistance and continuity of the sensor circuit
- Check power and ground circuit
- If necessary, replace the light sensor
- Repair or replace damaged wires
- Clean contacts from corrosion
- Reset the error and check the system operation
Related codes
FAQ
What does the B1792 code mean?
B1792 is an OBD-II diagnostic trouble code that indicates: Autolamp Sensor Input Circuit Short To Battery
What causes a B1792 error code?
The most common causes of B1792 include: Short circuit in wiring harness; Light sensor malfunction; Damage to wiring insulation; Problems in the lighting control unit.
How do I fix a B1792 diagnostic trouble code?
To fix B1792: Carry out diagnostics with a scanner to confirm the code. Visually check the condition of the wiring harness to the sensor. Check the resistance and continuity of the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1792?
Limited driving only, diagnose soon
How much does it cost to fix B1792?
The estimated repair cost for B1792 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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