OBD code C1623 indicates a fault in the All Wheel Control (AWC) Electronic Control Unit (ECU) system.
Symptoms include the AntiLock Brake System (ABS) and Engine warning lights being illuminated.
This issue is commonly caused by a faulty AWC ECU, open/shorted harness, or poor electrical connection.
It is a serious problem that requires immediate attention.
To fix it, inspect the wiring harness, connectors, and ECU 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 c1623 OBD Code
The vehicle displays a warning light indicating an issue with the wheel speed sensor circuit.
- 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 from the ABS system.
Causes of the c1623 OBD Code
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Possible triggers for fault code C1623 include issues with the wheel speed sensor or wiring faults.
- C1623 can be caused by a faulty All Wheel Control (AWC) ECU.
- An open or shorted All Wheel Control (AWC) ECU harness.
- A poor electrical connection in the All Wheel Control (AWC) ECU circuit.
Fixing Error Code c1623 Step By Step
Resolve fault code C1623 by inspecting the wheel speed sensor circuit for potential issues.
- To fix OBDII code C1623, first, review the possible causes related to the ABS hydraulic pump motor circuit.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the ABS hydraulic pump motor for proper operation.
- Replace the ABS hydraulic pump motor if it is faulty.
- Clear the fault codes and perform a road test to ensure the issue is resolved.
Cost Of Fixing c1623 Fault Code
The repair for fault code C1623 may involve replacing the wheel speed sensor.
The cost to diagnose and fix OBD code C1623 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150. Factors like shop rates and complexity can affect the final cost.
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Details of the c1623 OBD Code
C1623 indicates a malfunction in the ABS hydraulic pump motor circuit.
OBD code C1623 means that a fault has been detected in the ABS hydraulic pump motor circuit.
This code is triggered by the ABS control module when it detects an issue with the hydraulic pump motor circuit.
The ABS system is involved in this case, specifically the hydraulic pump motor circuit.
Mechanic’s Tech Notes
Code C1623 indicates a malfunction in the ABS hydraulic pump motor circuit.
OBDII code C1623 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 software may be necessary to resolve the issue.
FAQ
OBD code C1623 indicates a fault with the All Wheel Control (AWC) ECU. Symptoms include ABS and Engine warning lights. Check and repair related wiring and connectors.
Common symptoms of OBD code C1623 include ABS warning light and engine light on. Causes may be faulty AWC ECU or related wiring issues. Fix involves inspecting wiring and connectors.
Diagnose OBD code C1623 by checking AWC ECU for faults. Inspect wiring harness and connectors for damage or poor connections. Repair as needed.
Wrap Up
If your ABS warning light is on and you see OBDII code c1623, it may indicate an issue with the wheel speed sensor circuit, faulty wheel speed sensors, or damaged wiring harnesses.
This can lead to inaccurate wheel speed readings and affect the ABS system’s performance.
To address OBDII code c1623, inspect the wheel speed sensors and their wiring for any visible damage or corrosion.
Test the sensors for proper operation and check the connectors for a secure fit.
Replace any faulty sensors or repair damaged wiring as needed to restore proper ABS function.
