C1191 Infiniti Code - Rear Out ABS Solenoid
Quick Answer
The C1191 code indicates a malfunction related to the Rear Out Anti-lock Braking System (ABS) Solenoid in Infiniti vehicles. Common causes include Faulty ABS Solenoid: The solenoid may be malfunctioning due to wear and tear or internal failure, Electrical Issues: Damaged wiring, corroded connectors, or short circuits in the ABS system can trigger the C1191 code, Hydraulic Control Unit Failure: Problems within the hydraulic control unit can affect the solenoid's operation and lead to this diagnostic code. 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
- C1191 Infiniti indicates Rear Out ABS Solenoid.
- Common causes
- Common causes include Faulty ABS Solenoid: The solenoid may be malfunctioning due to wear and tear or internal failure, Electrical Issues: Damaged wiring, corroded connectors, or short circuits in the ABS system can trigger the C1191 code, Hydraulic Control Unit Failure: Problems within the hydraulic control unit can affect the solenoid's operation and lead to this diagnostic code.
- 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.
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Code C1191 Infiniti Description
The C1191 code indicates a malfunction related to the Rear Out Anti-lock Braking System (ABS) Solenoid in Infiniti vehicles. This code is triggered when the vehicle's onboard diagnostic system detects a fault in the operation of the rear ABS solenoid, which is responsible for modulating brake pressure to prevent wheel lock-up during hard braking. The solenoid plays a crucial role in the ABS system, allowing for optimal braking performance by adjusting brake fluid pressure to the rear wheels based on real-time data from wheel speed sensors.
Common Causes of C1191 Infiniti
- Faulty ABS Solenoid: The solenoid may be malfunctioning due to wear and tear or internal failure.
- Electrical Issues: Damaged wiring, corroded connectors, or short circuits in the ABS system can trigger the C1191 code.
- Hydraulic Control Unit Failure: Problems within the hydraulic control unit can affect the solenoid's operation and lead to this diagnostic code.
- Low Brake Fluid Levels: Insufficient brake fluid can impact the performance of the ABS system and cause the solenoid to malfunction.
- Faulty Wheel Speed Sensors: If the wheel speed sensors are not providing accurate data, it can lead to incorrect solenoid operation.
Symptoms of C1191 Infiniti
- ABS Warning Light: The ABS warning light on the dashboard illuminates, indicating a fault in the ABS system.
- Loss of ABS Functionality: The vehicle may experience a lack of anti-lock braking during hard stops, leading to potential wheel lock-up.
- Increased Stopping Distance: Drivers may notice longer stopping distances, particularly in wet or slippery conditions.
- Brake Pedal Pulsation: A noticeable pulsation in the brake pedal may occur when braking, indicating irregular brake pressure modulation.
- Unusual Noises: Drivers may hear unusual sounds, such as clicking or grinding, coming from the ABS module during operation.
How to Fix C1191 Infiniti
- Diagnostic Scan: Begin by using an OBD-II scanner to confirm the C1191 code and check for any additional codes that may provide more context for the issue.
- Visual Inspection: Conduct a thorough visual inspection of the ABS wiring, connectors, and the solenoid itself for signs of damage, corrosion, or loose connections.
- Test the ABS Solenoid: Use a multimeter to test the solenoid for proper resistance and functionality. If it is faulty, it will need to be replaced.
- Inspect the Hydraulic Control Unit: Check the hydraulic control unit for any signs of leaks or internal failure that may affect the solenoid's operation.
- Brake Fluid Check: Ensure that the brake fluid is at the appropriate level and in good condition. If necessary, flush the brake system and refill with fresh fluid.
Cost to Fix C1191 Infiniti
The typical repair costs for addressing the C1191 code can vary widely based on the specific issue and the labor involved. On average, the cost for parts and labor may range from $300 to $800. This estimate includes the cost of a new ABS solenoid, which can range from $100 to $300, plus labor costs that typically range from $80 to $150 per hour. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. For a more precise estimate, it is advisable to check local rates and consult with a trusted mechanic.
Tech Notes for C1191 Infiniti
It is much more difficult to diagnose a problem that occurs intermittently rather than continuously. Most intermittent problems are caused by poor electrical connections or faulty wiring. In this case, careful checking of suspicious circuits may help prevent the replacement of good parts.
When is the Code Detected?
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Frequently Asked Questions about C1191 Infiniti Code
What does the OBDII code C1191 mean for an Infiniti?
C1191 indicates an issue with the Rear Out ABS Solenoid circuit, which is part of the vehicle's anti-lock braking system (ABS).
What are the common symptoms of code C1191 in an Infiniti?
Symptoms may include an illuminated ABS warning light, reduced braking performance, or the ABS system not functioning properly.
What causes the C1191 code in an Infiniti?
Common causes include a faulty rear ABS solenoid, damaged wiring or connectors in the solenoid circuit, or issues with the ABS control module.
Can I drive my Infiniti with the C1191 code active?
Driving with this code active can compromise braking safety. It’s recommended to address the issue promptly to ensure proper ABS function.
How can I diagnose the C1191 code on an Infiniti?
Use an OBDII scanner to confirm the code, then inspect the rear ABS solenoid, wiring, and connectors for damage or corrosion.
What repairs are typically needed for code C1191?
Repairs may involve replacing the rear ABS solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the ABS control module.
How much does it cost to fix the C1191 code on an Infiniti?
Repair costs vary but may range from $150 to $500, depending on whether the solenoid or ABS control module needs replacement.
Can a weak battery cause the C1191 code?
Yes, a weak or failing battery can cause electrical issues that may trigger ABS-related codes like C1191.
How do I reset the C1191 code after repairs?
After completing repairs, use an OBDII scanner to clear the code. If the issue is resolved, the ABS light should turn off.
Is the C1191 code specific to Infiniti vehicles?
While C1191 is common in Infiniti vehicles, similar ABS solenoid-related codes can appear in other makes with comparable systems.
Discuss the causes and fixes for C1191 Infiniti OBDII Code
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