C1288 GMC Code - Steering Sensor Circuit Malfunction
Quick Answer
The Vehicle Stability Enhancement System (VSES) is activated by the Electronic Brake Control Module (EBCM) calculating the desired yaw rate and comparing it to the actual yaw rate input. Common causes include Faulty Steering Wheel Position Sensor (SWPS), Faulty Electronic Brake Control Module (EBCM), Steering Wheel Position Sensor (SWPS) harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1288 GMC indicates Steering Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty Steering Wheel Position Sensor (SWPS), Faulty Electronic Brake Control Module (EBCM), Steering Wheel Position Sensor (SWPS) harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1288 GMC Description
The amount of differential braking applied to the left or right front wheel is based on both the yaw rate error and side slip rate error. The side slip rate error is a function of the lateral acceleration minus the product of the yaw rate and vehicle speed. The yaw rate error and side slip rate error are combined to produce the total delta velocity error. When the delta velocity error becomes too large and the VSES system activates, the drivers steering inputs combined with the differential braking will attempt to bring the delta velocity error toward zero.
The VSES activations generally occur during aggressive driving, in the turns or bumpy roads without much use of the accelerator pedal. When braking during VSES activation, the brake pedal will feel different than the ABS pedal pulsation. The brake pedal pulsates at a higher frequency during VSES activation.
What are the Possible Causes of the DTC C1288 GMC?
- Faulty Steering Wheel Position Sensor (SWPS)
- Faulty Electronic Brake Control Module (EBCM)
- Steering Wheel Position Sensor (SWPS) harness is open or shorted
- Steering Wheel Position Sensor (SWPS) circuit poor electrical connection
How to Fix the DTC C1288 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1288 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1288 GMC Code
1. What does the OBDII code C1288 GMC mean?
C1288 indicates a Steering Sensor Circuit Malfunction, which means the vehicle's Electronic Brake Control Module (EBCM) has detected an issue with the steering angle sensor circuit.
2. What are the common symptoms of the C1288 code in a GMC vehicle?
Symptoms may include the ABS or stability control warning light illuminating, loss of stability control functionality, or erratic steering behavior.
3. What causes the C1288 code in GMC vehicles?
Common causes include a faulty steering angle sensor, damaged wiring or connectors in the steering sensor circuit, or a malfunctioning EBCM.
4. Can I drive my GMC vehicle with the C1288 code?
While the vehicle may still be drivable, the ABS and stability control systems may not function properly, which can increase the risk of losing control in certain driving conditions.
5. How is the C1288 code diagnosed?
A mechanic will typically use a scan tool to check the steering angle sensor readings, inspect the wiring and connectors for damage, and test the functionality of the steering angle sensor and related components.
6. How can I fix the C1288 code on my GMC vehicle?
Repairs may involve replacing the faulty steering angle sensor, repairing or replacing damaged wiring, or, in rare cases, replacing the EBCM.
7. Does the C1288 code require recalibration after repairs?
Yes, after replacing the steering angle sensor or performing repairs, the sensor often needs to be recalibrated using a scan tool to ensure proper functionality.
8. How much does it cost to repair the C1288 code on a GMC vehicle?
Repair costs vary depending on the issue, but replacing a steering angle sensor typically costs $150-$500, including parts and labor.
9. Can a dead battery cause the C1288 code in a GMC?
A low or dead battery can cause voltage irregularities, potentially triggering the C1288 code. However, it’s important to test and verify the sensor and circuit for other issues.
10. How can I prevent the C1288 code from recurring?
Regularly inspect the steering system’s wiring and connectors for damage, ensure the steering angle sensor is recalibrated after repairs, and maintain the electrical system to prevent voltage issues.
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