OBD code C1426 indicates an issue with the Stop Light Switch Circuit in the AntiLock Brake System (ABS).
Symptoms include the ABS warning light and engine light being illuminated.
Causes range from a blown fuse to a faulty stop light switch or poor electrical connections.
This is a moderate issue that should be addressed promptly.
To fix it, inspect the wiring harness, connectors, and components for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the c1426 OBD Code
The vehicle displays a warning light indicating an issue with the brake pedal switch circuit (C1426).
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality.
- Brake pedal may feel different during braking.
- Unusual noises coming from the ABS system.
Causes of the c1426 OBD Code
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Possible triggers for fault code C1426 include issues with the brake switch or brake pedal position sensor.
- C1426 can be caused by a blown Stop Light Switch Fuse.
- A faulty Stop Light Switch.
- An open or shorted Stop Light Switch harness.
- A poor electrical connection in the Stop Light Switch circuit.
- A faulty Skid Control ECU (Brake Actuator Assembly).
Fixing Error Code c1426 Step By Step
To address fault code C1426, inspect the wheel speed sensor and its wiring for potential issues.
- To fix OBDII code C1426, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the ABS system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the wheel speed sensors for proper operation and signal output.
- Inspect the ABS control module for any signs of damage or corrosion.
- Reset the ABS module using a professional scan tool.
- If the issue persists, consider replacing the ABS control module with a new or remanufactured unit.
Cost Of Fixing c1426 Fault Code
The repair for fault code C1426 may involve replacing the wheel speed sensor.
The cost to diagnose and fix OBD code C1426 depends on the estimated 1. 0hour repair time.
Labor rates range from $75 to $150 per hour.
The total cost will vary based on shop rates and the complexity of the repair.
Details of the c1426 OBD Code
C1426 indicates an issue with the pressure sensor in the brake booster.
OBD code C1426 means that the brake pedal switch B circuit has a malfunction.
This code is triggered by the ABS module when it detects an issue with the brake pedal switch B circuit.
The brake pedal switch B circuit is part of the brake light switch system that informs the ABS module when the brake pedal is pressed.
When this circuit malfunctions, it can affect the ABS system’s ability to properly control braking functions.
Mechanic’s Tech Notes
Code C1426 indicates an issue with the brake pedal switch circuit in the vehicle’s ABS system.
OBDII code C1426 relates to a fault in the transmission control module (TCM).
To diagnose, check TCM power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
Visually inspect wiring harnesses and connectors for damage, and check connector pins for issues like breakage, bending, or corrosion.
Reflashing the TCM might be necessary.
Ensure the TCM is receiving proper power and ground, and that it can communicate effectively over the CAN network.
FAQ
OBD code C1426 indicates an issue with the Stop Light Switch circuit in the AntiLock Brake System (ABS). Check fuse, switch, wiring, and connectors for faults.
Common symptoms of OBD code C1426 include ABS warning light and engine light on. Possible causes are blown stop light switch fuse, faulty switch, or wiring issues. Fix: Inspect wiring and components.
Diagnose and fix OBD code C1426 by checking for blown fuse, faulty stop light switch, wiring issues, or faulty Skid Control ECU. Inspect wiring and connectors for damage.
Wrap Up
If your ABS warning light is on and you see OBDII code c1426, it may indicate a fault in the brake pressure sensor circuit, a malfunctioning brake pressure sensor, or issues with the ABS module.
This can lead to inaccurate brake pressure readings and affect the ABS system’s performance.
To address OBDII code c1426, start by checking the wiring harness and connectors for any damage or corrosion.
Test the brake pressure sensor for proper operation and consider replacing it if necessary.
Ensure all connections are secure and free of debris to restore proper ABS system function.
