The OBD code C1422 for Toyota indicates an issue with the Stop Light Switch Assembly circuit in the AntiLock Brake System (ABS).
Symptoms include the ABS warning light and engine light being illuminated.
The common causes are a faulty stop light switch assembly or related wiring issues.
This is a moderate issue that should be addressed promptly.
To fix it, inspect the 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) |
Symptoms of the Toyota c1422 OBD Code
The vehicle displays an ABS warning light on the dashboard with fault code C1422 stored.
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality during braking.
- Unusual noises from the ABS system.
Causes of the Toyota c1422 OBD Code
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Possible issues related to Toyota fault code C1422 include ABS pump motor circuit problems.
- C1422 can be caused by a faulty Stop Light Switch Assembly.
- An open or shorted Stop Light Switch Assembly harness.
- A poor electrical connection in the Stop Light Switch Assembly circuit.
- A faulty Skid Control ECU (Brake Actuator Assembly).
Fixing Toyota Error Code c1422 Step By Step
Resolve fault code Toyota C1422 by inspecting and repairing the brake booster pressure sensor circuit.
- To fix Toyota OBDII code C1422, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, check the wheel speed sensor wiring and connections for any issues.
- Test the wheel speed sensors for proper operation using a multimeter.
- Inspect the ABS control module for any signs of damage or corrosion.
- Finally, reset the ABS control module or replace it if necessary to address the C1422 fault code.
Cost Of Fixing Toyota c1422 Fault Code
Diagnosing and repairing fault code C1422 on a Toyota may involve inspecting and servicing the brake booster system.
The cost to diagnose and fix Toyota OBD code C1422 typically ranges from $75 to $150, based on a 1. 0hour repair time.
Factors like shop rates and complexity can affect the final cost.
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Details of the Toyota c1422 OBD Code
The Toyota C1422 code relates to a problem with the brake booster pressure sensor circuit.
OBD code C1422 for Toyota vehicles indicates a problem with the brake fluid level switch circuit.
This code is triggered by the ABS (Antilock Braking System) module when it detects an issue with the brake fluid level switch circuit.
The ABS module monitors the brake fluid level to ensure that it is within the acceptable range.
If the circuit or switch malfunctions, it can trigger the C1422 fault code.
This code is specific to the brake fluid level switch circuit and is related to the vehicle’s safety systems.
Mechanic’s Tech Notes
For Toyota code C1422, check for issues with the brake booster pressure sensor circuit.
To diagnose and fix OBDII code C1422 in a Toyota, 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 check connector pins for signs of being broken, bent, pushed out, or corroded.
Address any issues found during the inspection to resolve the C1422 fault code.
FAQ
Common symptoms of OBD code C1422 in a Toyota: ABS Warning Light ON, Engine Light ON. Causes: Faulty Stop Light Switch Assembly, harness issues. Fix: Inspect wiring, connectors for damage.
Typical cause of OBD code C1422 in a Toyota: Faulty Stop Light Switch Assembly or related wiring issues. Check wiring harness, connectors, and switch for damage or poor connection.
To diagnose and repair OBD code C1422 in a Toyota with ABS and Engine lights on, check the Stop Light Switch Assembly, harness, and Skid Control ECU for faults.
Wrap Up
If your Toyota is displaying OBDII code c1422 along with ABS warning lights, it may indicate a fault in the brake fluid pressure sensor circuit.
This could be caused by a faulty brake fluid pressure sensor, damaged wiring, or poor connections in the system.
To address Toyota OBDII code c1422, start by inspecting the brake fluid pressure sensor and its wiring harness for any visible damage.
Test the sensor’s functionality and check for loose or corroded connectors.
Replace the sensor if necessary and repair any wiring issues to ensure proper ABS system operation.
