HomeP023B · Code meaning and manufacturer information
Powertrain

P023B

Code meaning and manufacturer information

P023B

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

JeepP023B
Charge Air Cooler Coolant Pump ""A"" Control Circuit Low

NHTSA 11017361

Manufacturer communications

5

Original wording in English

JEEP

Reported code forms P023B

Not applicable to vehicles built for US market. Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the…

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23-019-25 REV.A

JEEP

Reported code forms P023B

Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0133 -…

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23-019-25

JEEP

Reported code forms P023B

"Multiple Systems Repair Bundle Campaign Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0133 -…

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S2108000088

RAM

Reported code forms P023B

CEL (Check Engine Lamp) On, DTC P023B Charge Air Cooler Coolant Pump Control Circuit Low, U02A9 Lost Communication With Charge Air Cooler Coolant Pump

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S2008000116

JEEP

Reported code forms P023B

Active Grill Shutter Inline Connector Is Exposed On Vehicles Not Equipped. DTC?s U012D, U02A9, P023B, U2005-87, And B2206-00 Are Set

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Check vehicle applicability

4

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
JeepRENEGADE2019
JeepWRANGLER2025
JeepWRANGLER2024
Ram15002021

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

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Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.