Perform a load test to ensure the battery can hold power under stress. Clean any corrosion from battery posts.
This is a manufacturer-specific code (common in GM, Chevrolet, and GMC vehicles) indicating that a control module has detected system voltage outside of the normal operating range.
Verify ground straps are clean and tight. High resistance in a ground circuit (greater than ) often triggers this code.
To address this code properly as outlined in technical guides and expert videos:
Usually sets if voltage drops below 9 volts for more than 5 seconds. Voltage High: Can set if voltage exceeds 18 volts . 🛠️ Step-by-Step Diagnostic Process
Measure voltage with the engine off (target: ) and running (target: 13.8V – 14.5V ).
Perform a load test to ensure the battery can hold power under stress. Clean any corrosion from battery posts.
This is a manufacturer-specific code (common in GM, Chevrolet, and GMC vehicles) indicating that a control module has detected system voltage outside of the normal operating range. b1325.mp4
Verify ground straps are clean and tight. High resistance in a ground circuit (greater than ) often triggers this code. Perform a load test to ensure the battery
To address this code properly as outlined in technical guides and expert videos: Verify ground straps are clean and tight
Usually sets if voltage drops below 9 volts for more than 5 seconds. Voltage High: Can set if voltage exceeds 18 volts . 🛠️ Step-by-Step Diagnostic Process
Measure voltage with the engine off (target: ) and running (target: 13.8V – 14.5V ).