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The level inGE-52079 What the P2601 code means. Dec 11, 2021 · 3 posts · Joined 2022. - Repair Difficulty Level: 3/3. Nov 13, 2023 · I had my water pump and cambelt change earlier this month and noticed this fault code when I run an OBD 11 on the car. OBD Code: System: Subsystem: P023A Skoda – (ASE) Powertrain. P023A00- Charge Air Cooler Coolant Pump Control Circuit / Open. 0 A P025A Fuel Pump Module Control Circuit/Open Signal voltage 4. Code: U02A9. 8 - 5. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. The coolant level will gradually decrease in the GE-52079 reservoir as the system de-aerates. Model: 2020 Tesla Model 3 performance. engine and gearbox). Cause: CHARGE AIR COOLER COOLANT PUMP FUSED B+ CIRCUIT OPEN. I am reading a P008C dtc Fuel Cooler Pump Control Circuit/Open. The coolant pump is an electronically controlled auxiliary pump used to support the coolant system with extra flow. e. The temperature increase of the air entering engine is caused by the Supercharger. Skoda Octavia Mk III (2013 - 2020) Auxiliary coolant pump. Cause: CAC circuit short to ground. 2) PWM signal to pump (this allows the current to flow from 1 to 3) 3) Earth. Note. After a restart it was temporary "solved". 0x05D6 Auxiliary Engine Coolant Pump - Commanded - % 0x05DA Coolant Pump Variable Flow Actuator Position - Measured - % Refer to the appropriate system wiring diagrams and check the charge air coolant pump circuit for open circuit, high resistance; Inspect connectors for signs of water ingress, and pins for damage and/or corrosion; Check and Mar 10, 2023 · Measure and record the integrity of the charge air cooler control circuit. This fault code indicates that there is an issue with the Coolant Pump Jeep. Intercooler coolant pump . P023A Chevrolet Code - Charge Air Cooler Coolant Pump Relay Control Check and install a new air charge coolant pump, only when diagnosed as failed. Lastly, a faulty Powertrain Control Module (PCM) can also trigger this fault code. Any ideas please. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. I have a 2012 (tel:2012) Audi A4 B8 2. This system uses its own coolant pump that is electronically The fault code P2601 indicates a problem with the coolant pump control circuit. Symptoms of vehicle malfunctions 2013 Passat SEL. - Code Popularity: 11,495 Views. The check should be done by disconnecting the connector at the PCM and the other end at the coolant coolant pump. This technology circulates jacket water in the normal manner, but a separate water circuit is added to cool the engine’s intake air after it is pressurized by the turbocharger. This may involve disconnecting the connector at the ECM (Engine Control Module) and the other end at the coolant pump. Tech description: Ford Vehicle: Ford Escape,Ford Focus Flexifuel,Ford Mustang,Ford Fusion,Ford Taurus,Ford F-Series,Ford Explorer Aug 19, 2014 · Charge air cooling pump M44. any info would be The other, is a chafed control wire that wore through the electrical connection causing an open circuit. Damaged CAC pump. These cannot be overlooked in the troubleshooting stage, especially when dealing with an intermittent problem. Is the resistance below 3. P023B Mercedes-Benz Charge Air Cooler Coolant Pump Control Circuit Low. Location:Analysis:Possible Causes: Open Circuit. What does that mean?This generic powertrain diagnostic trouble code (DTC) is applicable to all OBD-II vehicles equipped with a charge air cooler, including vehicles from Ford, Chevy, Mazda, Toyota, etc. 3 relay. I had this code come up and did the research and found that the most likely source of the code is a disconnected ground to the intercooler coolant pump. short term solution was to stop the car and turn off the engine. The Powertrain Control Module (PCM) is responsible for monitoring this circuit’s signal. This can be caused by a faulty pump, a damaged or corroded circuit, or a problem with the control module. 4. I had my fuel cooler replaced by the dealership and a few days after I got it out the cooler started barking and squealing. In the case of the IC, instead of cooling the antifreeze, it cools the air in turn for a more efficient air / fuel mixture, increased fuel consumption, performance, etc. Cause: CAC circuit open; Damaged CAC pump; Diagnosis: A CAC circuit open condition will result in the CAC pump running continuously. P125700: coolant circulation valve open circuit P199E00: cylinder head coolant valve, open circuit. Repair Procedure: Inspect the harness connector D2476A at the Charged Air Cooler Coolant Pump for TPO (terminals pushed out) A501circuit. The coolant pump circuit is broken, which means the control module is not receiving a signal. 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 P2600 is a diagnostic trouble code (DTC) for "Coolant Pump Control Circuit/Open". symposium were sudden loss of ability to accelerate and loss of power (when driving on the CC it kept its speed but after a little breaking it was not possible to accelerate). Mechanical water pump (N55 is electric) Thermostat replaced with heat management module. Technician observed 2 DTC’s – P023B CHARGE AIR COOLER COOLANT PUMP CONTROL CIRCUIT LOW, U02A9 LOST COMMUNICATION WITH CHARGE AIR COOLER COOLANT PUMP. The Supercharger has an integrated intercooler (radiator) with its own coolant system to reduce the temperature of the air being forced into the engine. 0 hour. on. Code: P026E. Related Service Bulletins: SSM47086 The P023C fault code on cars is caused by a problem in the Charge Air Cooler (CAC) coolant pump control circuit. It can also be triggered by a low coolant level in the charge air cooler system. Other possible causes include a low battery voltage, a failed sensor, or a faulty wiring connection. - Repair Importance Level: 3/3. The fault code is for the electronic coolant pump, the pump is a 3 wire setup (this is an example as I don’t know your engine code) 1) 12v feed. . #1 · Apr 8, 2016. ECM (Engine Control Module) issue. Should P2251 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1 (Pending, Current, Permanent) P00EB - Intake Air Temperature Sensor 3 Circuit High Bank 1 (Pending, Current, Permanent) U113F (Pending, Current, Permanent) U1140 (Pending, Current, Permanent) P023B - Charge Air Cooler Coolant Pump Control Circuit Low (Pending, Current P023B Volkswagen Charge Air Cooler Coolant Pump Control Circuit Low. Once found, trace the coolant lines/pipes to the pump. Secure terminal or connector as needed Fig 1, 2. The cost of fixing this fault code is influenced by the repair time. Pin/connector problem. 10 A DTC P023A12 Charge Air Cooler Coolant Pump Control Circuit Short to Battery: DTC P023A13 Charge Air Cooler Coolant Pump Control Circuit Open: DTC P023A14 Charge Air Cooler Coolant Pump Control Circuit Short to Ground or Open P023A [3] Charge Air Cooler Coolant Pump Control Circuit Open; P0481 [3] Cooling Fan 2 Control Circuit Malfunction; P0480 [3] Cooling Fan I Control Circuit Malfunction; P2681 [3] Engine Coolant Bypass Valve Control Circuit/Open; P06DB [3] Engine oil pressure control – circuit low; P0260 [3] Injection Pump Fuel Metering Control "B Code P023A Charge Air Cooler Coolant Pump Control Circuit Open is active when there is an open circuit within the charge air cooler coolant pump and/or its circuit What Are The Symptoms Of The P023A Code? Symptoms of a P023A engine code may include: MIL (Malfunction Indicator Lamp) illuminated Poor engine performance Poor fuel mileage Apr 7, 2023 · P199D00- Thermostat for Cylinder Head - Short to GND. Common Causes of P023C OBD II Trouble Code. Jan 7, 2019 · I've borrowed a fault code reader which gave the following codes: P023A - Charge Air Cooler Pump Control Circuit / Open P190E - DTC definition not found! Please refer to vehichle service manual! Please refer to vehichle service manual! Oct 26, 2009 · OK, also found P026A (Charge Air Cooler Efficiency Below Threshold): Diagnostic Procedure: - Check the Charge Air Cooling Pump -V188-- Check the Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-This makes more sense. Tech description: Citroen Vehicle: Dodge Caravan,Dodge Caliber,Dodge Challenger,Dodge Dakota,Dodge Durango,Dodge Journey,Dodge To repair OBD-II Code P023A – Charge Air Cooler Coolant Pump A Control Circuit/Open, you can follow these steps: 1. Have seen that electrical connector just loose or not connected at all after an oil change. Apr 13, 2019 · This allows the spring tension to separate the relay armature contact from the relay load circuit contact, which interrupts current flow to the supercharger charge air cooler coolant pump. Therefore, the cost of fixing the P2601 fault code can Code: P023B. Check the integrity of the charge air cooler control circuit. Air to water intercooler replaces air to air system. 99 . #9. #filmora #filmoramobile Jul 2, 2024 · To diagnose the P023B code, it typically requires 1. Created and updated by William Orellana on Apr 13, 2019. Once discovered, you will need to locate the coolant lines / pipes to trace the path to the Apr 13, 2019 · Engine-Codes - Volkswagen - P023A Volkswagen. What does OBD-II fault code P023B mean? OBD-II Code Wiring issue is defined as a Charge Air Cooler Coolant Pump Control Circuit Low. Using a diagnostic tool, monitor the data parameters from the discharge air cooler. 0D. #22 · Jun 30, 2022. Notable changes from the N55. Eddie Ferrell on P068A Mercedes-Benz Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay De – Energized Performance Too Early; Billy Bob Thorton on P0440 Toyota EVAP Canister Purge Regulator Valve; Gustavo on C1953 Mazda Master Cylinder Pressure Sensor Circuit Open P261A is typically set because of electrical (CP-B circuit) issues. 1. OBD Code:System:Subsystem: P023B FIAT – (ASE) Powertrain Fuel and Air Metering. P0229 Throttle/Pedal Position Sensor/Switch C Circuit Intermittent; P022A Charge Air Cooler Bypass Control “A” Circuit Open; P022B Charge Air Cooler Bypass Control “A” Circuit Low; P022C Charge Air Cooler Bypass Control “A” Circuit High; P022D Charge Air Cooler Bypass Control “B” Circuit Open Jul 22, 2021 · I have a P023B charge air cooler pump control circuit low and. What does OBD-II fault code P023A mean? OBD-II Code Wiring issue is defined as a Charge Air Cooler Coolant Pump Control Circuit/Open. P023A Skoda Charge Air Cooler Coolant Pump Control Circuit / Open. #2 · Oct 31, 2022. In engines with multiple banks, bank 1 refers to the bank of cylinders that includes the #1 cylinder. Aug 8, 2023 · P023A Charge Air Cooler Coolant Pump Control Circuit Open: Navigating Engine Cooling Precision - At CarsBits, we are dedicated to providing affordable solutions, expert advice, and the right parts to keep your car on the road. They work in a similar way to a radiator. P06DB00- Engine Oil Pressure Control Circuit Low. 2. Code: P023A. 0 hour of labor. The wiring harness as well as the control circuit can be checked with a multimeter. 22,732 miles on the clock. Location:Analysis:Possible Causes: P023B Ford – (ASE) Powertrain Fuel and Air Metering. Tech description: Technical Description of OBD-II Trouble CodeThe control circuit for the charge air cooler coolant pump is operating at a high level. (e. The PCM sets the OBDII code when the Charge Air Cooler Coolant Pump is out of factory specifications. Definition: Charge Air Cooler Coolant Temperature Sensor Circuit High. If code P2600 is stored in the PCM memory, it indicates the following problem. New stock pump replacement is always a cheap approach, but my measurements and observation show that there are a few HP's to be had, by cooling the charge further Renntech pump is a candidate but an offensively expensive one for that P023A Charge Air Cooler Coolant Pump Control Circuit/Open Signal voltage 4. This occurs when the vehicle is idling or running at low rpm. 40 - 5. Possible Causes. 6 seconds. Throwing codes P023b charge air cooler pump "a" control circuit low U02A9 lost communication with charge air cooler coolant pump "A" OBD Code:System:Subsystem: P023B Jaguar – (ASE) Powertrain Fuel and Air Metering. Took off my belly pan and inspected all May 26, 2022 · In forced-air systems, they use a charge air cooler or, as I call it, an intercooler (IC) to help cool the charge air used by the engine. 0 Ohms? Yes • Go To 3 No • Repair the Charge Air Cooler Coolant Pump fused B+ circuit for an open or high resistance. Definition: Lost Communication With Charge Air Cooler Coolant Pump. This can be caused by a faulty pump relay, damaged wiring, or a malfunctioning pump control module. Trouble Code Description: Charge Air Cooler Coolant Pump Control Circuit Low. P023A-4B Land P023A. First you will need to find your IC (Intercooler. any one help me with this since I noticed I have lost coolant a little as the months pass by. Apr 8, 2016 · 3 posts · Joined 2016. Tech description: Jaguar Vehicle: Jaguar S-Type,Jaguar XF,Jaguar XJ,Jaguar XK,Jaguar XK-Series,Jaguar X Sep 21, 2022 · Volkswagen Crafter with flashing glow plug and engine management lights with the van in limp modecause of the fault was a open circuit in the secondary water Dec 25, 2021 · EGR cooling water pump 2 circuit (P24A8) Hi all, just recently had my engine light come up on my 2017 Nissan Navara np300 stx. cheers, The other, is a chafed control wire that wore through the electrical connection causing an open circuit. 4. adjat84th said: The charge air cooler coolant circuit pump gets unplugged during an oil change to not get drenched in oil from the filter. See pics. Code P008C is set by the PCM when the Fuel Cooler Pump Control Circuit is open. 5. The control lamp on the instrument panel will then illuminate, and the error will be written to the control module memory. The Powertrain Control Module ( PCM) monitors the Charge Air Cooler Coolant Pump function. Code P023B stands for Charge Air Cooler Coolant Pump Control Circuit Low. Jan 17, 2020. Apr 13, 2019 · Description. Oct 26, 2014 · 13865 - Coolant Pump for Intercooler P023A 00 [237]-Open Circuit MIL ON - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 1 Mileage: 98570 km Sep 25, 2011 · It is a single circuit because all cooling water is circulated by a single engine-mounted water pump. AKA Charge Air Cooler). I was able to clear the code with my Scangauge after the engine is running and it would stay off until I restarted the engine again. 2 - 4. 5L Ti - Coolant in Charge Air Cooler! Took my 17 FE 1. Expand user menu Open settings menu. P023B Peugeot – (ASE) Powertrain Fuel and Air Metering. P023A13. P0303-P, misfires detected on Cylinder 3, pending (soft) code. Read the article to know possible causes, symptoms, and Code P007D is triggered when the PCM detects a high signal from the charge air cooler temperature sensor in bank 1. P16BF00- Heater support pump Short circuit to ground. The troubleshooting steps may vary depending on the manufacturer, coolant pump type, and wire colors. Alfa-Romeo. Table of contents. OBD Code:System:Subsystem: P023B Volkswagen – (ASE) Powertrain Fuel and Air Metering. Equipped with a multimeter and the appropriate wiring harness, independently test the control circuit. Pump works great. The speed of the electric coolant pump calculated from the IWPI signal is less than 10 rpm (open or short in the IWPI circuit) (1 trip detection logic). Find your IC (Intercooler. It is common for most auto repair shops to charge between $75 and $150 per hour. Code P023B Charge Air Cooler Coolant Pump Control Circuit Low is active when there is a low electrical value within the charge air cooler coolant pump and/or its circuit Jun 24, 2020 · 66 posts · Joined 2021. Sep 21, 2023 · To diagnose the P00E1 code, it typically requires 1. Jun 23, 2021 · I've let it run all night until the battery was dead, I've cleared the codes, I've unhooked the battery to reset and nothing works. This can be caused by a malfunctioning CAC coolant pump relay, a short in the wiring harness, or a faulty coolant pump. Fig 1 This fault code (DCS) is normally found on all vehicles with an inlet air cooler, also called the intercooler. The P023B fault code indicates a low signal from the charge air cooler coolant pump control circuit. The check engine light keeps popping with the codes u02a9 and p023b Charge Air Cooler Coolant Pump Control Circuit Low The P023A fault code is caused by an open circuit in the charge air cooler coolant pump control circuit. Ask them whether they've inspected/changed V188 and G42. Another cause can be a poor electrical connection in the Auxiliary Coolant Pump circuit. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. Most auto repair shops charge between $75 and $150 per hour for their services. Mar 28, 2018 · 2017 1. If the ECM detects an improper voltage on the pump relay control circuit this DTC sets. In this situation a coolant pump is used to pump the coolant through the system. 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 May 26, 2022 · Basic step # 1. 0 . Jul 20, 2023 · I have a wrangler jl rubicon 2. Description: To improve engine performance the Charge Air Cooler (CAC) system is used to reduce the temperature of the air entering the combustion chambers. The automobile fault code u05aa can be caused by a faulty Auxiliary Coolant Pump. These codes have a moderate severity level. Usually inserted in the coolant flow pipe, these can be hard to discover. In this photo, you can see the fuel cooler, the lines, and the fuel cooler pump (center) connected to the lines: Charge Air Cooler Coolant Pump Control Circuit/Open Description: This DTC sets when the CAC circuit is open or an internal failure of the charge air cooler (CAC) pump occurs. My c7 z06 is a throwing a code saying "charge air cooler coolant pump control circuit/open. SCAC stands for “ separate circuit after-cooled “. Description: The Powertrain Control Module (PCM) does not receive a LIN BUS message from the Charge Air Cooler Pump for 2. The estimated repair time for this fault code is 1. Reply Like. Measure the resistance of the (A501) Fused B+ circuit between the Charge Air Cooler Coolant Pump harness connector and the Power Distribution Center (PDC) C2 harness connector. Code P023A Charge Air Cooler Coolant Pump Control Circuit Open is active when there is an open circuit within the charge air cooler coolant pump and/or its circuit Sep 14, 2019 · Its not to cool the turbo, its the pump for the charge air cooling circuit, see RHS of picture From what information I have seen these engines do not have a watercooled turbo. Dec 2, 2016 · The B58 has more horsepower and torque then the N55. They're normally placed for best ventilation (for example, in front of the radiator, inside the front bumper, under the hood). Jul 16, 2022 · Reply Like. Have had a computer hooked up and it comes up with the code P24A8, was just wondering if anyone can give me some information on what the go could be. Definition: Charge Air Cooler Coolant Pump Performance. Replace the damaged part: If you find any damaged components such as engine wiring, Charge Air Cooler Coolant Pump A Control Circuit or the coolant pump, you should replace them with new ones. 2. When the ECM detects out-of-range voltage or poor performance, it sets the P2601 code. Charge Air Cooler Coolant Pump Control Circuit Open DTC P023A, sometimes indicated as P023A00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i. Location:Analysis:Possible Causes: End of Range – Circuit Lower Than Expected. Broken or damaged Coolant pump wiring harness. Internal mechanical obstruction in coolant pump. Code P023A is set when the PCM detects an open circuit in the discharge air coolant pump control circuit. 3 V P023C Charge Air Cooler Coolant Pump Control Circuit High Signal curent > 2. Code: P00E1. Based of the specific diesel powered vehicle involved, various other codes may be activated by the PCM and illuminate the Check Engine Light as well. Open or short in electric water pump assembly circuit. it seems to have appeared a couple of weeks after the cam belt was changed and the coolant was topped up. This usually indicates an open circuit. 60 V P025D Fuel Pump Module Control Circuit High Signal current > 1. Code P023A Charge Air Cooler Coolant Pump Control Circuit Open is active when there is an open circuit within the charge air cooler coolant pump and/or its circuit. Trouble Code Description: Charge Air Cooler Coolant Pump Control Circuit / Open. The Powertrain Control Module (PCM) monitors the Charge Air Cooler Coolant Pump function. OBD Code:System:Subsystem: P023B Mercedes-Benz – (ASE) Powertrain Fuel and Air Metering. Improvement of Valvetronic - VVT4 with reduced height. The other, is a chafed control wire that wore through the electrical connection causing an open circuit. Point being, both mechanical and electrical faults are equally possible. P26F800: coolant pump “c” stuck. Rear mounted VANOS and timing chain. The P261A code is an OBDII fault code that relates to the Coolant Pump ‘B’ Control Circuit. This system uses its own coolant pump that is Make: Dodge. OBD Code:System:Subsystem: P023A Audi – (ASE) Powertrain Fuel and Air Metering. In forced induction systems, a charge […] Feb 12, 2020 · P023B Description. Troubleshooting steps may vary depending upon manufacturer, type of CP-B and wire colors. May 14, 2020 · Location: Birmingham. Our mission is to help you find the correct and highest-quality components at the most competitive prices Apr 13, 2019 · To diagnose the P023B Audi code, it typically requires 1. Using the Jaguar Land Rover approved diagnostic equipment, clear all stored DTCs and retest. P023B Volkswagen Code - Charge Air Cooler Coolant Pump Control Circuit Low. P125900- Coolant circulation valve Short circuit to ground. The coolant will be opaque in theGE-52079 reservoir to begin with. 5L to the dealership this morning to have a DTC for misfires investigated. In some cases (as with Peugeot and Citroën) the intercooler uses a combination of air and coolant to cool the inlet air. Tech description: Peugeot Vehicle: Peugeot 107,Peugeot 208,Peugeot 408,Peugeot 508,Peugeot RCZ,Peugeot 4007,Peugeot Expert Tepee. EFI-MAIN NO. They are usually located in a location where they can receive optimal airflow (for example, in front of the radiator, inside the front bumper, under the hood). corrosion, broken lock tab, etc. P023A Volkswagen Code - Charge Air Cooler Coolant Pump Control Circuit/Open. Is there any body on here know anything about p023b fault code which is charge air cooler coolant pump control circuit low ive changed the auxiliary coolant pump about 3 months ago which sorted it. Engine's "unhappy" light flashed at me on March 16th, around 8:30pm, at around 22,200 miles. Definition: Charge Air Cooler Coolant Pump Control Circuit Low. ) OBD Code:System:Subsystem: P023A Peugeot – (ASE) Powertrain Fuel and Air Metering. P24A9 EGR cooler coolant control circuit low flow. Tech description: Apr 13, 2019 · To diagnose the P023A Volkswagen code, it typically requires 1. P023A Audi Charge Air Cooler Coolant Pump Control Circuit / Open. CHARGE AIR COOLER COOLANT PUMP FUSED B+ CIRCUIT SHORTED TO GROUND. Edited 15 September, 2019 by SuperbTWM May 12, 2015 · 2015 Passat TDI SEL. My EML came and and I scanned the vehicle which returned the following results- Control unit: 01 Engine Active faults: 0 Inactive faults: 1 System description: R4 2. May 29, 2020 · Škoda Octavia. Now I think my fuel cooler pump has gone out. g. If the signal is not within the factory specifications, the PCM will set the P261A code. Description: This DTC sets when the CAC circuit is shorted to ground or an internal failure of the charge air cooler (CAC) pump occurs. Related coolant pump "B" circuit trouble codes: The other, is a chafed control wire that wore through the electrical connection causing an open circuit. Specifically, it indicates that the circuit is experiencing a high input or output voltage. A4 (B8 Platform) Discussion - UK: P261A00 - Coolant Pump "B" Control Circuit/Open - Hi all. It can also be caused by an open or shorted Auxiliary Coolant Pump harness. Fuel and Air Metering. Eddie Ferrell on P068A Mercedes-Benz Engine Control Module (ECM) / Powertrain Control Module (PCM) Power Relay De – Energized Performance Too Early; Billy Bob Thorton on P0440 Toyota EVAP Canister Purge Regulator Valve; Gustavo on C1953 Mazda Master Cylinder Pressure Sensor Circuit Open P023B Dodge – (ASE) Powertrain Fuel and Air Metering. in the Engine Cooling section and command the charge air cooler coolant pump on. but light is back on the dash again with same problem. Failure Type: Over Temperature. I am loosing power after a few hard pulls, and I have a code for charge temp. This extra flow is used to keep the coolant circulating at low RPMs and also when the engine is off. When I drive it I pull the fuse to shut it off. Posted 14 May, 2020. This sub type is used by the control module to indicate the detection of an internal temperature above the expected range. Definition: Charge Air Cooler Coolant Pump Control Circuit/Open. Electric water pump assembly. 3. 0l TDI Software The other, is a chafed control wire that wore through the electrical connection causing an open circuit. Charge Air Cooler Coolant Pump Control Circuit Open. Allow the charge air cooler coolant pump to run continuously. ss ew tn in em vf xv ku fa qg