P023B
Charge Air Cooler Coolant Pump A Control Circuit Low
P023B is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Coolant Pump A Control Circuit Low. Common causes: faulty intercooler cooling pump, pump control wire short circuit to ground. Estimated repair cost: $44–200.
Symptoms
- Reduced engine power
- Increased charge air temperature
- Engine tendency to detonate
- Check Engine Light Illuminates
- Deterioration of dynamics in hot weather
Causes
- Faulty intercooler cooling pump
- Pump control wire short circuit to ground
- Broken power or control wire
- Pump connector oxidation
- Faulty pump relay or fuse
How to Fix
- Read error codes and check for adjacent codes
- Check the intercooler coolant pump circuit fuse
- Check the supply voltage at the pump connector
- Check the wiring harness for open circuit and short to ground.
- Measure the resistance of the pump winding
- If necessary, replace the intercooler cooling pump
Related codes
Error P023B by Vehicle Brand
FAQ
What does the P023B code mean?
P023B is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Coolant Pump A Control Circuit Low
What causes a P023B error code?
The most common causes of P023B include: Faulty intercooler cooling pump; Pump control wire short circuit to ground; Broken power or control wire; Pump connector oxidation.
How do I fix a P023B diagnostic trouble code?
To fix P023B: Read error codes and check for adjacent codes. Check the intercooler coolant pump circuit fuse. Check the supply voltage at the pump connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P023B?
Limited driving only, diagnose soon
How much does it cost to fix P023B?
The estimated repair cost for P023B is $44–200. Actual cost depends on your vehicle, location, and labor rates.
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