Guide To P023C OBD Error Code Solutions

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If you experience exponential drop in the fuel economy, and your car engine is stalling with improper throttle response and Check Engine Light turned on. It might be an indicative to OBD Code P023C error.

OBD-II Code Wiring issue is defined as a Charge Air Cooler Coolant Pump Control Circuit High.

Code P023C Charge Air Cooler Coolant Pump Control Circuit High is active when there is a high electrical value within the charge air cooler coolant pump and/or its circuit.

The Charge Air Cooler Temperature Sensors informs the engine control module (PCM) about the air temperature exiting the charge air cooler assembly. The Charge Air Cooler Assembly cools the air coming out of the turbocharger before it enters into the engine. If the PCM detects a high electrical value from the Charge Air Cooler pump or circuit, the PCM will set code P023C.

What causes the problem with the Charge Air Cooler Coolant Pump Control Circuit High?

• Fault in the Charge Air Cooler Coolant Pump
• Damaged wires and connectors of the sensor
• Faulty Air Cooler circuit
• Problem in the PCM to interpret the transmitted sensor data

1. Engine Control Module - Faulty ECM leads to engine stalling or not starting, and check engine lights being on. Replace damaged ECM now!
2. Intercoolers - A damaged intercooler will not reduce the air temperature and thereby not increasing the density of the air supplied to the engine. Visit us to buy quality intercooler today!
3. Diagnostic Tool - You will need high grade diagnostic tools for correction of the OBD error code which is detected. Visit us today to grab amazing deals.
4. Air Cooler Coolant Pump - Check if the pump is damaged or leaky and replace as fast as possible.
5. Air Cooler Coolant Pump Harness - Replace the faulty harness to solve OBD code P023C error. Buy now!
6. Coolant Hoses/Pipes - Replace faulty hoses or pipes and solve P023C code this instance. Buy from us now!
7. Coolant/Antifreeze - There also be the case where the coolant levels have dropped. Keep the fluids level up and buy new coolants now!
8. Cooling System - Check for faulty parts and replace them if found not working properly. Replace now!

Following are the symptoms that indicate the problem with the Air Cooler Coolant Pump and circuit thus flashing of P023C error.

Common Symptoms

• Illumination of Check Engine Light
• Impacted engine performance due to poor air/fuel ratio and temperature difference
• Increased fuel consumption
• Vehicle running in "limp" mode to protect the engine
• If equipped, the Diesel particulate filter regeneration gets inhibited

Proper scan tools should be used to detect and diagnose the problems related to a particular OBD error code. After testing it is important to check that the error doesn’t reflect back anymore. Some of the common components that account to the major problems of the P023C error code and when fixed can fix the problem are:

• Intercooler Replacement
• Bad wiring to the circuit and pump
• PCM (Powertrain Control Module) replacement

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P023C is properly diagnosed with an advanced scan tool capable of factory sensor readings (not just one from an auto parts store). A qualified technician can read the data from the advanced scan tool to determine when the problem occurred, or if it is still occurring. They may clear the code/light and test drive the vehicle while monitoring the scan tool data to see if the fault returns or is present.

Based upon the conditions of the test, possibly clearing the code, and road testing the car while monitoring the data, further diagnosis may be required. Diagnosis may require multiple tools such as:

• A technician typically begins by hooking the vehicle up to an OBD-II scanner in order to verify that the code is present, and check for other codes.
• This data along with freeze frame data is recorded, and the codes are then cleared to see if they reoccur.
• Next, there should be a visual inspection of the wiring and connectors to check for loose connections, corrosion, or shorts.
• A specialized tool may be used to test the charge air cooler coolant pump and circuit. Other tests of the CACT and camshaft components may help pinpoint the problem, as well as data transmission accuracy.
• If there is no problem found with the sensor and the circuit, then the most probable answer to the problem is a faulty PCM circuit. A PCM consists of the ECM and the transmission control module and can cause great problems with it is unable to interpret the right data from other sensors.

Common Mistakes When Diagnosing OBD Code P023C

Oftentimes the PCM sensor and circuit is blamed, and replaced, without checking the Charge Air Cooler Pump and circuit as well as neglecting the damaged wiring and connectors. Because there can be several causes for this code, a complete inspection should be carried out in order to avoid repairs that may be unnecessary and more expensive.