C1916 – OBD-II DTC

OBD-II DTC C1916 – Ride Control LF Shock Actuator Circuit Short To Ground

DTC C1916 meaning

DTC C1916 refers to a diagnostic trouble code indicating a short circuit to ground in the left front shock actuator circuit of a vehicle’s ride control system. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. The left front shock actuator is responsible for adjusting the suspension system to enhance ride quality and handling. A short to ground suggests that there is an unintended connection between the circuit and the vehicle’s chassis, which can disrupt normal operation.

DTC C1916 symptoms

Common symptoms associated with DTC C1916 may include:

• Warning lights on the dashboard, such as the suspension or check engine light.
• Decreased ride quality or handling performance.
• Inconsistent or erratic suspension adjustments.
• Potential noise from the suspension system.
• Vehicle may feel unstable or bouncy during driving.

DTC C1916 causes

Several factors can lead to the occurrence of DTC C1916, including:

• Damaged wiring or connectors in the left front shock actuator circuit.
• Corrosion or moisture ingress in electrical connections.
• Faulty left front shock actuator itself.
• Issues with the vehicle’s body control module (BCM) or suspension control module.
• Improper installation or aftermarket modifications to the suspension system.

DTC C1916 seriousness

The seriousness of DTC C1916 can vary based on the symptoms and the vehicle’s intended use. It is generally considered a moderate to serious issue because:

• It can affect vehicle handling and safety, especially during cornering or sudden maneuvers.
• Ignoring the code may lead to further damage to the suspension system.
• It may result in a failed vehicle inspection if the suspension system is not functioning correctly.

How to diagnose DTC C1916

To diagnose DTC C1916, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC C1916 and check for any additional codes.
2. Inspect the wiring and connectors related to the left front shock actuator for damage or corrosion.
3. Test the left front shock actuator for proper operation using a multimeter.
4. Check the vehicle’s body control module (BCM) and suspension control module for faults.
5. Perform a visual inspection of the suspension system for any signs of aftermarket modifications or improper installation.

How to fix DTC C1916 step-by-step instructions

To fix DTC C1916, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors in the left front shock actuator circuit.
3. If the left front shock actuator is faulty, replace it with a new or refurbished unit.
4. Reconnect any connectors and ensure all connections are secure and free of corrosion.
5. Reconnect the vehicle’s battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the suspension system operates correctly and the DTC does not reappear.

How to erase DTC C1916

To erase DTC C1916, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes from the vehicle’s memory.
5. Disconnect the scanner and start the vehicle to ensure the code does not return.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.