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AutoCodes - Generic - B1792

B1792 Code - Autolamp Sensor Input Circuit Short to Battery

- Code Popularity: 11,507 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1792?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Autolamp Sensor
  • Autolamp Sensor harness is open or shorted
  • Autolamp Sensor circuit poor electrical connection
  • Faulty Headlamp Switch
  • Faulty Vehicle Security Module (VSM)
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How to Fix the DTC B1792?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1792 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B1792 Description

With the headlamp switch turned to the AUTOLAMPS ON position, a battery voltage signal is sent to the Vehicle Security Module (VSM). The VSM monitors the input from the light sensor. The VSM then determines the amount of ambient light based on the input received from the light sensor. When the ambient level has reached a point relays are energized to supply voltage to the exterior lamps. The Diagnostic Trouble Code (DTC) will be set when the VSM detects a short to voltage on the Autolamp on the input circuit.

OBDII Code B1792 - Autolamp Sensor Input Circuit Short to Battery - AutoCodes.com
B1792 Code - Autolamp Sensor Input Circuit Short to Battery

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