OBD code C1422 indicates an issue with the Stop Light Switch Assembly in the AntiLock Brake System (ABS).
Symptoms include the ABS warning light and engine light being illuminated.
The causes can be a faulty switch assembly, wiring harness issues, or a problem with the Skid Control ECU.
This is a serious issue that affects braking performance.
To fix it, inspect the switch assembly, wiring harness, and connectors for any damage or poor connections.
| 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 c1422 OBD Code
The vehicle displays a warning light indicating an issue with the brake pressure sensor circuit (C1422).
- 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 module.
Causes of the c1422 OBD Code
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Possible triggers for fault code C1422 include issues with the brake fluid level sensor circuit.
- C1422 can be caused by a faulty Stop Light Switch Assembly.
- A Stop Light Switch Assembly harness that is open or shorted.
- A Stop Light Switch Assembly circuit with poor electrical connection.
- A faulty Skid Control ECU (Brake Actuator Assembly).
Fixing Error Code c1422 Step By Step
To address fault code C1422, inspect the wheel speed sensor and related wiring for faults.
- To fix OBDII code C1422, first, review the possible causes related to this code.
- Visually examine the wiring harness and connectors associated with 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 ABS module for proper operation and communication.
- Reset the ABS module if necessary.
- Consider replacing the ABS module if all other steps do not resolve the issue.
Cost Of Fixing c1422 Fault Code
Diagnosing and repairing fault code C1422 may involve inspecting and servicing the vehicle’s brake booster system.
The cost to diagnose and fix OBD code C1422 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour.
The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.
Details of the c1422 OBD Code
Code C1422 indicates a malfunction in the brake pressure sensor circuit.
OBD code C1422 means Vehicle Speed Sensor ‘A’ Circuit Low.
This code is triggered by the Engine Control Module (ECM) when it detects a low voltage signal from the vehicle speed sensor ‘A’.
The vehicle speed sensor ‘A’ is part of the antilock braking system (ABS) and is responsible for providing the ECM with information about the vehicle’s speed.
When the voltage signal from the sensor drops below a specified threshold, the ECM sets code C1422 to indicate a circuit low condition.
Mechanic’s Tech Notes
Code C1422 indicates a malfunction in the brake pressure sensor circuit of the vehicle.
To diagnose and fix OBDII code C1422, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.
Verify TCM communication over the Controller Area Network (CAN) network with a scan tool.
If the TCM does not respond, reprogramming or reflashing may be necessary.
Visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.
This thorough inspection will help identify and address any issues causing the C1422 fault code.
FAQ
OBD code C1422 indicates an issue with the Stop Light Switch Assembly circuit. Check for faulty switch, wiring, or connections for ABS and engine warning lights.
Common symptoms of OBD code C1422 include ABS warning light and engine light on. Possible causes are faulty stop light switch assembly or poor electrical connection. Fix: Inspect wiring and connectors.
Diagnose OBD code C1422 by checking Stop Light Switch Assembly and harness for faults. Inspect Skid Control ECU. Repair wiring and connectors as needed.
Wrap Up
If your ABS warning light is on and you see OBDII code c1422, it may indicate a fault in the brake pressure sensor circuit, a malfunctioning brake pressure sensor, or issues with the ABS module.
This could lead to improper brake pressure control and affect the vehicle’s braking performance.
To address OBDII code c1422, start by inspecting the wiring harness and connectors related to the brake pressure sensor.
Test the brake pressure sensor for proper operation and check for any signs of damage or corrosion.
If necessary, replace the faulty sensor or repair any wiring issues to restore proper ABS
