Mercedes obd no communication Have you ever gone to use a scanner on your car, truck, or Jeep only to find out it would not work? If you plug in to your OBDII data port and nothing happen This code is related to a communication problem between the transmission control module and the engine control module. motor, transmission operating perfectly. Benefit Description; Early Detection of Issues: The OBD II system allows for the early detection of potential problems in a Mercedes vehicle by monitoring various parameters and sensors, preventing major failures and costly repairs. The port has power but I cannot communicate with the van. When this fault code appears, it means that the communication between the two modules has been lost. No change. Nov 22, 2023 · No aftermarket components affecting communication lines were found. startekinfo. I went with the seller to start the car with it's old battery, car has been sitting for a while If you need parts or accessories for your Mercedes Benz click the link below: Mercedes Repair Infohttps://www. Jul 11, 2021 · The suggestion to buy the c4 kit now. No 'check engine' lights and all systems, i. Went over to my mechanic to have him plug in OBD2 for a code read. The fault code u0164 is related to the communication between the vehicle’s control modules. I knew where the fuse box is located in my car (engine bay) but I noticed there is no diagram for the fuse assignment. Scotty Kilmer, mechanic for the last 48 years, shows how to fix a broken car the won't communicate with a scan tool so you can't get any information on the p Jul 27, 2022 · SOLVED: Turns out the iCarsoft device needed a software update. In this video I explain why your ecm/pcm is not communicating with scan tool or the ecm is not communicating with the tcm, bcm, abs module etc If you're r Aug 10, 2019 · OBD2 not connecting to ECU easy fix, obd port not working. comHey guys, in this video we will show you how to fix obd port tha If you need parts or accessories for your Mercedes Benz click the link below: Mercedes Repair Infohttps://www. The are no warning lights on the dash and to my knowledge the van has no other issues. 5 TDI 5 Cyl engine. Pins for GMLAN communication lines checked and found without corrosion or fretting. com Learn how to troubleshoot "No Communication" errors when using an OBD2 scanner, with a detailed demonstration on a Mercedes-Benz using the YOUCANIC scanner. Oct 5, 2022 · Hi everyone I have an slk 230 and it's just failed it's Mot on SRS light and ASR light. in this vide ill show you the easiest way to repair a broken wire in your cars harness. 2002 Mercedes Benz c240 OBD port not communicating with reader. The chassis, gear box and running gear is all Mercedes. So I went to FLAP and they plugged in their scanner, and it says no communication, just like mine. With Mercedes there is no such easy task as no communication. This is on my S204 2. engine light comes on with ignition, quick check of fuses found nothing. These fuses send power to the Engine ECU (or ME as M/B refers to it), no power = no ECU signals and a dead engine. There is power in OBD leading to no communication. Having power at the OBD port is just a fraction of the things that need to be present. This can cause a variety of issues, including transmission shifting problems, engine stalling, and reduced fuel efficiency. Perform a Pin-to-Pin Voltage Check. 6 Transmission (96+) DTC 2-65 = actual errors DTC above 96 = stored errors, add 96 to actual error, eg, 10+96 would show 106 Nov 19, 2012 · I started my 2006 CLS500 and first the ABS light came on, then an ESP failure message displayed followed by the Check Engine MIL. The ABS light on all the time. I have the car from the title, and the following options are not working: - NO OBD ( can't connect diagnostic tool ) - No turn signals ( hazard lights are working ) - No Park-tronic ( front and rear ) - No rear wiper (including no water spraying) - No high beams (front In this video I will show you how to fix your no start/no communication issue on your 2002(and other years same as this model) Isuzu Rodeo/Honda Passport(oop Jul 31, 2012 · My 2001 CLK55 just started showing ABS, BAS, ESP malfunctions yesterday. Customer: 2000 W220 430 OBD port reporting "no communication" to state emissions center testing equipment nor to personal OBD reader. 5 amp fuse anyway but still no communication with my reader. Other OBD2 Codes + Test Results: ECM: P0700 (Trans Mil request ON), P2544-00 (Transmission Torque Request). pins. Dead Battery – If your car battery is dead or low, the OBD II scanner may not be able to establish a connection. This fault code indicates that there is a problem with the communication network, which can cause issues with the vehicle’s performance and safety. The ABS Control Module sends periodic messages to the Controller Area Network (CAN) bus. The wiring diagrams for the ML also changed every year so I would need the build date to get you the correct diagram for the car. In my case the relay had power but no ground. When this code appears, the engine light or service engine soon warning light will turn on. See full list on cartipsdaily. to/3 Jun 3, 2024 · Why Your OBD2 Scanner Isn't Connecting. However, if you’re using a Bluetooth OBD2 scanner, then the problem could be App firmware. Thanks 😁 May 19, 2015 · I have a VW LT35 van, I' in Australia, T1N Sprinter based, it has a VW 2. Therefore, bypass cable between OBD port and EZS was made, the short is eliminated now, however initial symptoms of no communication are still present. You will only be able to access the ECU (which will provide some P07XX codes for the transmission). First went under the dash and plugged in wouldn't communicate; then went under the hood to the factory plug (the big round one) and it also wouldn't communicate. Watch as The fault code U0155 indicates a communication problem between the vehicle’s control module and the instrument cluster. Has anyone had such a communication problem? Feb 11, 2021 · Computers are great most of the time, but when they don’t work, they’re a pain in the jacksie. Scan tool doesn't communicate? Can't read trouble codes? Try checking for pin fitment issues on the OBD2 connector with this quick and easy method. Reprogramming of ECM, TCM, and EBCM performed without resolving the issue. Nov 25, 2019 · trying to read code with my launch diagun scanner with 38 pin adaptor, car has no 16 pin connector under dash. While most OBD code readers should be able to communicate with cars that use the standarised OBDII protocols - or cars with OBD2 compatible protocol to cover the engine/emission management system; a common issue with communication can be that the car you are trying to connect uses a non standarised OBD protocol such as ALDL, MOBD, MUTT or OBD1 Jan 6, 2025 · Disconnected Wires – The wires connecting the OBD II port to the vehicle’s computer may be disconnected or damaged, preventing communication. com/scanner/Get Factory Service Repair Manuals & Specs https://www. Visually checked sam units no signs off here is the pinout for this connection just to make sure no one tampered with it. The vehicle runs ok but I have no wipers,turn signals,no radio, A/C and fan runs on HIGH also srs, cel light on. Now it's fully connecting to the car's computers and OBD. If the scan tool does not receive data from an OBD II vehicle Learn how to troubleshoot "No Communication" errors when using an OBD2 scanner, with a detailed demonstration on a Mercedes-Benz using the YOUCANIC scanner. I've tried connecting using the Sprinter specific software for the X431 diag. Hi, So I was shopping for a '00 E55 in my area, car has been messed with ( advertised as not shifting out of 1st gear), but nothing too major. Unable to communicate with any control module with my Verus scan tool. En caso de que sea compatible, revisa los cables y asegúrate de que estén en buenas condiciones. I had to take my car in for AirCare (British Columbia Canada) were they plug in their OBD tester and charge you $45 every two years to tell you you have no codes and pass inspection. I bought an OBD II reader and it reported these events: Event 2350 Y3/8N4 (VGS) transmission control unit defective Event P2037-4 ME-SFi 2. BUY QUALIT Dec 18, 2023 · If you use the OBD2 port with the scanners, there is no way that you can access all modules with any scanner. So I looked at the plug in under the dash, and only four the many holes actually have contacts. Weeks later, it has now come back, with the usual cruise control Nov 24, 2024 · Symptoms of a bad Mercedes Central Gateway module usually vary from car to car. The Yaw sensor was faulty according to my MB2 scanner, so I replaced it and cleared the light. emptyemptyGreen with grey stripe- engine control unit data linebrown- groundbrown with black stripe- groundwhite or green with white- can lowblue with yellow- engine module data lineblack with grey stripe circuit 15 key on poweryellow with red- traction module data lineemptygrey with green- transmission No start of the vehicle and no direct communications to the engine management system – ECU fault right? Or could it be something else?Let’s ask Tim…https://w Mar 17, 2020 · Opened up the K40 module, found the fuses, pulled and inspected all and none were blown. youtube. com/manualsAsk Car Questions & Get So I bought a Torque Pro plug in ELM 327 OBD2 scanner for my phone, but when I plug it in there is no communication. The fuses get their power from relay R (Circuit 87). I have power at port. problems with the operation of the bus or the drb iii must be corrected before proceeding with diagnostic testing. Hooking up the scan tool only to be greeted with no communication is frustrating!!! OBD scanners fail to connect for three common reasons: Faulty OBD plug/socket; Scanner not compatible; CAN network fault Aug 12, 2020 · So I pulled out my Autel diagnostic tool and ran a scan of the modules. I then dove into the module itself to check values and volts to find it was dead with no yaw/angle or speed sensors working. I have a ml 350, I have no communication at obd port. This is the I took a rigours steps on diagnosing a tcm that will not communicate with scantool or ecu, shifter Won't get out of park, I have no option that to fix this i Sep 5, 2017 · MERCEDES W211 OBD PORT DOES NOT WORK NO CONNECTION Our Website: http://mechaniclifestyle. if there is a problem, refer to the vehicle communications. I've tried two different basic ODB2 scanners but both fail to connect. If the CAN bus does not receive these messages, the U0121 code is set. OBD2, or "On-Board Diagnostics", was designed to monitor vehicle performance and provide diagnostic information via its scanner port - typically located underneath your dashboard - however, this connection may fail for various reasons: Apr 7, 2019 · Car came in for a check engine light - misfire. com/channel/UCWQgLabU8aDJ17csEFV438g?sub_confirmation=1Is your OBD2 port powering up but not connecting? Don't worry, we've got you cover Mar 18, 2025 · 5. Code Description; P0100: Mass Air Flow (MAF) Circuit Malfunction: P0130: O2 Sensor Circuit Malfunction (Bank 1, Sensor 1). Sep 1, 2017 · Any Suggestions on this issue. A common symptom of a bad Gateway Module is no communication between an OBD-II scanner and one or more modules. May 1, 2008 · I was unable to get my OBD tester to work in my 1998 Mercedes wagon, however ,it worked on my other Mercedes. How To Fix OBD Communication Failures? You can follow the below steps to fix OBD communication failures: 1. Aug 14, 2022 · These are the common reasons why you’re facing communication failure with an OBD2 scanner. Etc, no problem. to access the ABS system ( the brake system is Mercedes ) but will not connect. Check The Fuse Box Feb 8, 2013 · Diagnostic Trouble Codes for the Mercedes-Benz 722. 1cdi. I have no intention of replacing my 1999 S500, nor do I forsee buying a mercedes of any model any newer in the future as I have several other cars keeping me busy and age and health are always concerns. to/2TyNB7l Replacement Fuses: https://amzn The U0121 fault code indicates a communication problem with the Anti-Lock Brake System (ABS) Control Module. Gaining an understanding of why your OBD2 scanner isn't connecting to the ECU is critical for effective troubleshooting. In case this ever happens to someone in this forum there is a fuse titled "Diagnostic Port", for my particular model is bay number 62 (15 AMPS fuse). bus (+) and bus (-) circuits Feb 23, 2022 · I have measured the OBD port and it revealed short to ground on CAN_LOW line, I have removed the EZS and short was still present. I recently had the Check Engine light come on in my car Buy YOUCANIC Pro Scanner https://www. I replaced the 7. May 25, 2020 · I have the iCarsoft CR Pro and haven't been too pleased with its performance on older Mercedes vehicles. But what could the problem be? Jun 11, 2019 · No crank, No communication from both 38-Pins & OBD . MERCEDES W204 OBD PORT NOT WORKING C200 C220 C250 C260 C280 C300 C350 OBD Scanner used in the video: https://amzn. I Jan 27, 2020 · C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace note: communication over the bus is essential to the proper operation of the vehicles on-board diagnostic systems and the drb iii. Sep 17, 2024 · Finally took the car into a dealer and they first diagnosed no power to fuses 53 & 54. tried selecting different years on scanner with no luck. Now I have taken this to multiple garages and they all say that my obd isn't communicating with there machines, but there is power going to it, any ideas, maybe @Subby_ will know. I also pulled the OBD port from the panel and inspected the wires and they were connected, made sure they were seated in OBD connector. i cant communicate with ECM at all but can talk to transmission, brakes. com/Mercedes Partshttps://amzn. The CAN bus uses two wires for communication, CAN high and CAN low. We have power and ground on pins 4 and 16 of the DLC. So reading about the C4 there is many posts saying they are unreliable etc. https://www. 👉 Solution: Refer to your vehicle’s wiring diagram and test voltage continuity on each pin of the OBD2 connector. Customer also had taken the car to the dealership in Chicago, they were also unable to communicate with any modules. Apr 23, 2014 · First, be aware thee is NO CAN bus cables at my OBD2 pin 6 and 14 as I have seen described for other models! Also, there is no CAN troubleshooting in the Xentry DAS as I have found… That might be different with newer cars then mine 2001 model? I haven’t checked, but you should be able to use an ohm-meter to check that you have a complete Mar 18, 2022 · hello, my name is carter little and I am having an issue with my Mercedes Benz not communicating to the scan tool I have a 2000 Mercedes Benz W210 E320 wagon and cannot for the life of me find any thread of anyone having the same issue. If a voltage drop or irregularity is detected, the OBD2 communication line may be compromised. Fuse has been checked and is OK. 8 Motor electronics no Oct 22, 2024 · Most Common Mercedes-Benz OBD-II Trouble Codes. If you’re still unable to link your OBD2 scanner, you may need to perform a pin-to-pin check using a voltmeter. . I have checked all fuses on the fuse clusters up front (2) and the cluster under rear seat, passenger. It couldn't even read the secondary air code on my W209 without resorting to generic OBD. ¿Qué debo hacer si mi escáner OBD2 no se conecta con la ECU de mi Mercedes? Si tu escáner OBD2 no se conecta con la ECU de tu Mercedes, lo primero que debes hacer es verificar si el escáner es compatible con el modelo y año de tu vehículo. Found 7 errors in esp module that appear to be related to communication with ecu. Is the problem a network issue or is it Apr 4, 2025 · I bought a 2014 V6 sprinter not too long ago and I'm having issues using the OBD2 port. Symptoms of this fault code include the instrument cluster not working, the speedometer not functioning, the fuel gauge not working, the engine warning light staying on, the battery warning light staying on, and the vehicle When you face a no start condition with no communication with the ECM you might wonder where to start your diagnosis. Tried several scanners no luck. e. No Communication. youcanic. May 21, 2015 · I found out what the problem is. to/3 Feb 16, 2017 · I thought that my ESP light, which has given trouble over the last few months was now cured - but no. ) . Jul 14, 2020 · Hello guys, Can you please tell me which SAM module is responsible for the OBD connection, (front, rear, under seats etc. I went with the seller to start the car with it's old battery, car has been sitting for a while Jun 11, 2019 · No crank, No communication from both 38-Pins & OBD . To access all modules, you need to use the 38-pin diagnostic socket and the appropriate 38-pin adapter specific to the scanning system. Control modules that communicate via the Central Gateway module do not respond if the Gateway Module has failed. fvqb mxuee iqqm kqlk gzryneb ibbid mqkbb lrin dlcwb yfq