OBD code C1408 indicates a fault with the Rear Speed Sensor Left circuit in the AntiLock Brake System (ABS).
Symptoms include the ABS Warning Light and Engine Light being illuminated.
The issue is commonly caused by a faulty Rear Speed Sensor Left or related wiring issues.
It is a moderate concern that should be addressed promptly.
To fix it, inspect and repair any damaged components or wiring connections related to the Rear Speed Sensor Left.
| 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 c1408 OBD Code
The vehicle displays a warning light indicating an issue with the left front wheel speed sensor.
- 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 c1408 OBD Code
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Possible triggers for fault code C1408 include issues with the brake booster sensor or wiring.
- C1408 can be caused by a Faulty Rear Speed Sensor Left.
- A Rear Speed Sensor Left harness that is open or shorted.
- A Rear Speed Sensor Left circuit with a poor electrical connection.
- Or a Faulty Skid Control ECU (Brake Actuator Assembly).
Fixing Error Code c1408 Step By Step
Repairing fault code C1408 involves inspecting and potentially replacing the left front wheel speed sensor.
- To fix OBDII code C1408, start by reviewing the possible causes mentioned above and visually examining the corresponding wiring harness and connectors.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, perform a thorough inspection of the wheel speed sensor and its wiring for any visible damage or corrosion.
- Test the wheel speed sensor using a multimeter to ensure it is functioning correctly.
- If the sensor is faulty, replace it with a new one.
- Clear the fault codes using an OBDII scanner and test drive the vehicle to ensure the issue has been resolved.
Cost Of Fixing c1408 Fault Code
The repair for fault code C1408 typically involves replacing the left front axle wheel speed sensor.
The cost to diagnose and fix OBD code C1408 is typically based on 1. 0 hour of labor, with rates ranging from $75 to $150 per hour.
The total cost will depend on shop rates, complexity of the issue, and any additional parts or services needed.
Details of the c1408 OBD Code
Code C1408 relates to an issue with the vehicle’s powertrain control module.
OBD code C1408 means the Powertrain Control Module (PCM) has detected a fault in the vehicle’s brake booster pressure sensor circuit.
This code is triggered by the PCM when it detects an electrical fault in the brake booster pressure sensor circuit.
The brake booster pressure sensor is part of the vehicle’s brake system and is responsible for monitoring the pressure in the brake booster.
When a fault is detected in this sensor circuit, the PCM illuminates the Check Engine Light and stores the C1408 trouble code.
Mechanic’s Tech Notes
Code C1408 indicates an issue with the vehicle’s powertrain control module (PCM) communication circuit.
OBDII code C1408 relates to an issue with the vehicle’s traction control system.
To diagnose this, you can start by checking the power and ground to the Traction Control Module (TCM) using a multimeter.
Ensure the TCM responds over the Controller Area Network (CAN) network by using a scan tool.
If the TCM does not respond, reprogramming or reflashing it may be necessary.
Additionally, inspect the wiring harness and connectors for any damage, and check the connector pins for signs of being broken, bent, pushed out, or corroded.
This thorough examination can help pinpoint the root cause of the C1408 fault code.
FAQ
OBD code C1408 indicates an issue with the Rear Speed Sensor Left circuit. Check sensor, wiring, and connections for faults to resolve ABS and engine warning lights.
Common symptoms of OBD code C1408 include ABS warning light on, engine light on, caused by faulty rear speed sensor left or related wiring issues. Fix: Inspect and repair affected components.
Diagnose OBD code C1408 by checking Rear Speed Sensor Left and related wiring for faults. Inspect connectors for damage or corrosion. Fix as needed.
Wrap Up
If your ABS warning light is on and you see OBDII code c1408, it may indicate a fault in the right front wheel speed sensor circuit.
This could be caused by a damaged sensor, faulty wiring, or poor connections.
To address OBDII code c1408, check the right front wheel speed sensor for any physical damage or corrosion.
Inspect the wiring harness for any signs of wear or breaks.
Ensure the sensor is securely connected and replace it if necessary.
