C1901 Ride Control Right Rear Shock Actuator Circuit Failure

OBD2 Code: C1901

Description: Ride control right rear shock actuator circuit failure.

Definition: This code indicates a malfunction in the electrical circuit of the right rear shock actuator, which is part of the vehicle’s ride control system. The issue could be due to wiring problems, a faulty actuator, or a related component failure affecting the vehicle’s suspension performance.

c1901 – Ride Control Right Rear Shock Actuator Circuit Failure

Typical Severity: Critical

Common Causes

c1901 – Ride Control Right Rear Shock Actuator Circuit Failure

Common Causes:

• Faulty right rear shock actuator
• Short circuit or open circuit in the wiring harness of the right rear shock actuator
• Corrosion or poor connections in the electrical connectors related to the right rear shock actuator
• Issues with the ride control module that controls the right rear shock actuator

 

Common Misdiagnosis

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OBD2 Code: C1901

Description: Ride Control Right Rear Shock Actuator Circuit Failure

Common Misdiagnosis: Replacing the shock absorber without checking the actuator wiring or connections.

 

Common Diagnostic Steps

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OBD2 Code: C1901

Description: Ride Control Right Rear Shock Actuator Circuit Failure

• Check for any stored codes and freeze frame data to understand the conditions when the code was set.
• Inspect the right rear shock actuator wiring and connectors for damage, corrosion, or disconnection.
• Test the voltage and ground supply at the right rear shock actuator connector using a multimeter.
• Verify continuity of the circuit between the control module and the right rear shock actuator.
• If equipped, use a scan tool to command the right rear shock actuator on/off to check its operation.
• Replace or repair any damaged components as necessary based on diagnostic findings.
• Clear codes and perform a road test to ensure proper operation of the ride control system.