BMW DTC P023C – Charge Air Cooler Coolant Pump Control Circuit High
DTC P023C meaning on BMW
DTC P023C in a BMW indicates a fault with the charge air cooler coolant pump control circuit. This fault code is triggered when the engine control module (ECM) detects a high voltage condition in the circuit that controls the charge air cooler coolant pump.
BMW DTC P023C symptoms
Symptoms of DTC P023C in a BMW may include engine overheating, reduced engine performance, illuminated check engine light, and potential coolant leaks. The vehicle may also go into a reduced power mode to prevent further damage.
BMW DTC P023C causes
Common causes of DTC P023C in a BMW include a faulty charge air cooler coolant pump, damaged wiring or connectors in the control circuit, a malfunctioning ECM, or low coolant levels. It is essential to inspect the entire circuit for any issues.
BMW DTC P023C seriousness
DTC P023C should be addressed promptly as it can lead to engine overheating and potential damage if left unresolved. Continuing to drive the vehicle with this fault can result in further complications and costly repairs.
How to diagnose DTC P023C on BMW
To diagnose DTC P023C on a BMW, a mechanic should perform a thorough inspection of the charge air cooler coolant pump, check the wiring and connectors for any damage, and use a diagnostic scanner to retrieve specific fault codes. Testing the pump’s functionality and monitoring voltage levels are crucial steps in the diagnosis process.
How to fix DTC P023C on BMW
Fixing DTC P023C on a BMW typically involves replacing the faulty charge air cooler coolant pump, repairing any damaged wiring or connectors, and clearing the fault codes from the ECM. It is essential to use genuine BMW parts and follow manufacturer guidelines during the repair process.
How to erase DTC P023C on BMW
To erase DTC P023C on a BMW, a diagnostic scanner capable of clearing fault codes is required. Once the underlying issue has been fixed, the mechanic can use the scanner to erase the fault code from the ECM’s memory. This step ensures that the vehicle’s system recognizes the repair and resets the check engine light.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.