P009a mercedes fault code This means that there is a discrepancy between the intake air temperature (the temperature of the air entering the engine) and the ambient air temperature (the temperature of the surrounding air). Oct 6, 2024 路 What Is the P009A Mercedes-Benz Code? ** The P009A code is a diagnostic trouble code (DTC) that indicates a correlation issue between the intake air temperature (IAT) and the ambient air temperature (AAT) sensors in a Mercedes-Benz vehicle. nonda. If the engine computer (PCM) determines that the reading from the sensor is not plausible, code P0096 will set. Let’s explore the world of Mercedes fault codes together! Mercedes OBD1 Codes List And Definition [FULL] Free download: Full Mercedes OBD1 Trouble Codes List and Meaning PDF. Apr 9, 2019 路 How can I repair OBDII code P009A in my Mercedes-Benz? - Repairing this code may involve replacing the faulty intake air temperature sensor, fixing wiring issues, replacing the ambient air temperature sensor, or reprogramming the engine control module. Browse through 23 models of Mercedes Benz available on site now. =====Claim your FREE engine code eraser 馃憠 https://free. If you have a service engine soon lamp accompanied by a code P009A, it means that the powertrain control module (PCM) has detected a discrepancy in the signals between the intake air P009A is an OBD2 generic trouble code indicating a correlation issue between the Intake Air Temperature (IAT) and Ambient Air Temperature (AAT) sensors. Procedure - Review the Detailed Status Information for the relevant code on the DTC Readout. 0. The P009A fault code indicates an Intake Air Temperature/Ambient Air Temperature Correlation issue in the vehicle. The specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Find out the most popular Mercedes Benz fault codes along with what they mean. I solved my P0410 years ago by understanding the Secondary air system that led me to properly test the system and find the solution. Check symptoms, common causes, and diagnostic help at RepairPal. However, it's not only the air pump that may be defective. Aug 27, 2024 路 The P009A: Intake Air Temperature/Ambient Air Temperature Correlation code indicates a discrepancy between the readings from the intake air temperature sensor and the ambient air temperature sensor. To figure out what is wrong with your vehicle you must first extract the P009A DTC For Mercedes Benz T Class. "0" in the third character position in a DTC indicates that the fuel and air metering and auxiliary emission controls is experiencing a malfunction. See here for a list of those native codes: Jul 25, 2018 路 P009a Mercedes-benz Description The P009A code indicates that the Intake Air Temperature (IAT) and Ambient Air Temperature (AAT) sensor readings differ by more than a calibrated value. Jul 10, 2018 路 '68 250S, '91 300se, '98 SL500, '77 450SEL 6. I have attached the pictures showing their location and circled in red. Your Mercedes Benz S Class engine control system detects a problem, the computer stores the diagnostic trouble code P009A in its memory. Mar 13, 2023 路 OBD Code P009A - Intake Air Temperature/Ambient Air Temperature Correlation Apr 9, 2019 路 What is the Cost to Diagnose the Code? Labor: 1. This code is triggered when the engine control module detects inconsistencies or discrepancies between the readings of these sensors Causes for this engine code may include: IAT sensor left unplugged after service; Bad ambient air temperature sensor; Faulty IAT sensor; Open or shorted circuits or connectors; Defective PCM or PCM programming error; How Serious Is This P009A Code? IAT sensor input is vitally important to fuel delivery and a stored code P009A should be May 14, 2009 路 Code P0410 refers to secondary air system fault. Code P0405 relates to a low sensor voltage and P0406 relates to a high voltage situation; If the EGR pintle is stuck partly open, the vehicle will not idle well or stalls P009A = Ambient air temperature plausibility fault P009F = Checks for stuck HPV by creating a small leak and looking at the MV closed loop trim (intrusive) + causes discharge disable P00B7 = Coolant water pump too low flow What causes OBD-II fault code P0096? Diesel engines uses an Intake Air Temperature Sensor to measure the temperature of the air going into the charge air cooler. But the diagnostic tool couldn't erase the fault code from the car's memory. To diagnose the P009A code, it typically requires 1. You can use the following internal links to quickly find your Mercedes fault code: Mercedes fault codes starting with ‘P’ (Powertrain) Mercedes fault codes starting with ‘B’ (Body) Mercedes fault codes starting with ‘C’ (Chassis) Mercedes fault codes starting with ‘U’ (Network) Mercedes fault codes Jul 19, 2010 路 Mercedes Benz R171 SLK Class Cars. In general, replacing a faulty temperature sensor can cost between $50 and $200, including parts and labor. Your Mercedes Benz T Class engine control system detects a problem, the computer stores the diagnostic trouble code P009A in its memory. When diagnosed, it gave a fault B1129 stating that the ambient temperature sensor has an open circuit. OBD Code: System: Subsystem: P009A Mercedes-Benz – (ASE) Powertrain Fuel & Air metering, Auxiliary emission controls This generic powertrain diagnostic trouble code (DTC) is commonly found in many OBD-II vehicles, including those from Mercedes-Benz, Jeep, Mazda, Ford, and others. 9, '16 AMG GTS, '19 AMG GT63S, '21 E450 Cab Find out if a part is NLA Before you try to order: Mercedes-Benz Classic Parts Search. Fault Codes A complete list of DTCs related to this Solution can be found in the Fault Codes section below. Mar 25, 2025 路 My Mercedes W210 E320 CDI is in limp mode. What Does the Engine Code P009A Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. Learn what Intake Air Temperature/Ambient Air Temperature Correlation means, location and how to repair? OBD-II Code P009A indicates a problem with the correlation between the intake air temperature sensor and the ambient air temperature sensor. This could be due to one or both sensors being faulty, issues with the wiring or connectors, or a problem with the PCM. The typical repair costs for addressing the P009A code can vary depending on the specific cause of the issue. The service engine soon light will illuminate and the OBD code P0409 will be set. Usually, vehicles have an intake air temperature sensor installed near the air filter, which measures the temperature of the air entering the engine. And from another site I learned that the Intake Air Temperature Sensor is part of the MAF sensor, which makes sense as it has to compensate for temperature to do Jul 11, 2018 路 Hello, I am Danny. co 馃憟=====Engine Code P0409 Saving Repair Parts Feb 7, 2018 路 What Does Code P0409 Mean? OBD II fault code P0409 is a generic code that is defined as “Exhaust gas recirculation (EGR) sensor A circuit malfunction”, and is set when the PCM (Powertrain Control Module) detects a general failure of, or malfunction in, the electrical control circuit of the EGR (Exhaust Gas Recirculation) system. Dec 30, 2023 路 OBD-II fault code P009A means there is a correlation issue between the intake air temperature and ambient air temperature sensor. Feb 12, 2024 路 Mercedes fault codes list. I have found three air temperature sensors for your car. Two are in the interior and one on the engine. • If Confirmed DTC is : Proceed with diagnosticsTRUE • If Confirmed DTC is : Disregard and focus on other symptoms or DTCs relevant FALSE From OBD1 to OBD2 codes, our expertly curated list covers a wide range of fault codes and gains the knowledge you need to address these codes effectively. Additionally, a second code relating to the EGR sensor failure may be set. To figure out what is wrong with your vehicle you must first extract the P009A DTC For Mercedes Benz S Class. See full list on obd-codes. com Apr 9, 2019 路 Repair Information for P009A Mercedes-Benz code. Know about the P009A OBD-II code indicating an intake air temperature sensor correlation issue. Kindly help locate the sensor and also guide on which diagnostic tool is recommended to completely clear fault codes. b987 Cost to Fix P009A. 0 hour of labor. clear side-markers & front parking lamps w/error-free LEDs, and it refuses to reset this code (P009A), or rather it says May 31, 2022 路 Since you used Autozone, I'll assume you are in the IUSA> If so, you don't have a CLK230 as that model was not sold here, so maybe it's a CLK350? If so, the P009A code is a generic OBDII code that doesn't translate directly to MBZ DTC's. opsh qnt sclx pyrl wlb sedsg gakz xqkgq hfufmgx npsa yhlcek fsvaru ded aiob uuoi