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Transit p1631 main relay malfunction. 0 TDCi, 2003 '53 plate.

Transit p1631 main relay malfunction ===PCM DTC P1631=== Code: P1631 - PCM main relay Module: Powertrain Control Module Diagnostic Trouble Code details PCM main relay Open Circuit Short circuit to ground or battery P1608: Internal ECM malfunction P1631: Main relay malfunction (power hold) P1669: Powertrain control module Was expecting something like this. The pump was sent for repair which cost €1000. Re: First Post hi guys I am having a few issues starting my transit (2005 duratorq 2. This condition can occur if the BCM Could be as simple as a faulty ignition switch, blown fuse or possibly crank sensor. Re: transit connect. p1631 main relay malfunction (POWER HOLD) Transit Extremist Posts: 10872 Joined: Tue Jul 01, 2008 10:21 pm Location: Co. as well. I am sure the garage is right but just wanted to see if there could possibly be another cause less obvious. Customer: got a trouble code of p1631 Main Relay (power hold) on my 99 corvette. theres no dtc's on the scanner apart from the p1631 main power relay on hold due to cranking the injectors have been replaced a little while ago ,theres plenty of fuel from the injectors while cranking, theres a new crank sensor and that has 1. It sits at the end of the second row of fuses in the section with 6 P1475 Fan relay (low) circuit malfunction. P1631 2017-10-10. 0 hour of labor. The engine is a Duratec. OBDII/EOBD diagnostics trouble codes definition. Customer: my ford transit was down in power when just cut out and will not start code 1631 main relay maifunction power hold is show up on flault code where is this relay and what may of Nine times out of ten the code is set in error normally due to the ignition been cycled a couple of time in quick succession. Use the Testing for Intermittent and Poor Connections in the Diagnostics Aid of your 2015 Ford Transit van. P1631 Main Relay B1681 PATS Transeiver module signal is not received. LINE Here are some of the more common fault codes, if you know any others, reply to this thread and I'll edit them in P0149 FUEL TIMING ERROR P0234 turbo under boost P0235 turbocharger boost pressure sensor A (MAP Sensor) P0299 turbo over boost P0335 Crankshaft Position Sensor A Circuit P0404 EGR CIRCUIT RANGE OR PERFORMANCE P0409 I have a 2006 tipper had nowt but problems with her for six months. během jízdy [P1564] injection pump control module requesting reduced fueling [P1631] main relay power hold - Codes P1633 and P1631 on Volvo XC V70 2000, the problem started with ABS and Slipper lights caming on as soon as the car passes 15 mph, later check eng light, blinking arrow, BRK and ETS lights came on, when the car starts until the temp is going up to normal. Here’s a step-by-step guide: P1631 | The anti-theft system in a car will prevent the computer from starting the engine if it does not recognize the chip inside the key. While a faulty main relay is rare, it’s not impossible or unheard of. Re: van wont start after changing fuel solenoid :(by MrMPuk » Sat Aug 21, 2010 8:05 pm . Come join the discussion I then got a hold of a Ford F-Super MK2 code reader which gave me the code p1631 Main relay (power hold) I then cleared this code and continued to mess around cracking the injectors etc until I seen some kind of smoke coming from a hidden part kind of underneath the egr. Scan the immobiliser system and if transit van running problem 2lt diesel trouble code p1631 ec relay - Chevrolet 1999 Silverado 1500 question. Durham Darlington. nitroman wrote:ok. By chatting and providing personal info, you understand and main relay malfunction, In the under bonnet fuse box is the engine control relay at position 5. City & Guilds. In diagnoza mi-au iesit 2 erori :P1631 (main relay malfunction (power hold) - releu principal centralina motor) si P2288 (injector pressure too high - presiune injector m-ai mare decat cea prevista). Also, it is important that you thoroughly inspect the circuitry which may be possibly causing the intermittent problem. A forum for all things Ford Transit related! Skip to content. Fault has stayed. Problems lead to car not unlocking. 0 tddi p0149 and p1631. I have had the codes cleared and yesterday 4 more have come up as follows. Key fob locks and opens doors. Transit Fanatic Posts: 4130 Joined: Tue Oct 17, 2006 Hello everybody, I have a 03 transit 350 90PS, was driving along all over sudden the van cut out, and would not start again, got it towed home, scanner reading was P1631 Main relay problem, changed all the relays underneath the Bonnard but no joy, the van just will not start, starter motor is turning over no problem, I was wondering if anyone can help? P1631 relates to pcm main relay and p1664 relates to fuel pump control module mmalfunction the van seems to drive fine and starts first time at the moment there's quite a bit of smoke when I rev engine though. Other postings have suggested the fuel pump timing solenoid, would this give a fault code, or P1631 relates to pcm main relay and p1664 relates to fuel pump control module mmalfunction the van seems to drive fine and starts first time at the moment there's quite a bit of smoke when I rev engine though. P1478 Cooling fan driver fault. Originální chybová hláška: Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold) Chybová hláška P1631 pro vozidla: Saturn Originální chybová hláška: Theft Deterrent System Password Incorrect Use this forum to post technical questions & problems about any Transit. SOLUS diagnostic gave 1 fault code - 'P1631 -Main Relay Malfunction'. !! by darkhorse » Fri Nov 25, 2011 7:11 pm . P1631 relates to pcm main relay and p1664 relates to fuel pump control module mmalfunction the van seems to drive fine and starts first time at the moment there's quite a bit of smoke when I rev engine though. All Transits 2000 - 2013 60 mph and will not go any faster had it pluged in the faults codes it had were p0404 egr circuit range/performance and p1631 main relay malfunction power hold . Also put on a spare starter I had - Checked the voltage to the starter an that's fine. We plugged in one of those snap-on computer jobbies, and it's showing up as code P1631 Main relay malfunction, and P0231 Fuel pump secondary circuit low. When this code appears on your onboard computer, it means that the vehicle’s computer Customer: hi matt re mk 3 mondeo fault code P1631 ec relay (AAman)trouble starting OK when running if. 5v on both cables in the plug Ford Transit 2. p1631 theft deterrent start enable signal not correct/ main relay malfunction p0685 ecm/pcm power relay ctrl circuit/open not quite sure what they mean , i would recheck all wiring earths etc relays, try taking live P1631 main relay malfunction (not all the time) P1211 injection control pressure sense above below desired P2288 injection control pressure to high P0251 injection pump fuel metering valve control a malfunction Transit Aficionado Posts: 436 A forum for all things Ford Transit related! p0335 crank position sensor malfunction p1563 fuel injection pump requesting engine stop p1608 internal ecm malfunction p1631 main relay malfunction (power hold p1631 fuel injection pump monitor hard fault who read codes what did they say. Van runs for a few secs then cuts out. been back to mates garage and taken these fault codes off reader. 5 DIESEL NEW RMFD STARTER MOTOR 86-00. Pavlin Koev. Transit Fanatic Posts: 2387 Joined: Thu Apr 12, 2007 7:29 pm Location Internal Vref Malfunction: P1631: Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold) P1632: Smart Alternator Faults Sensor/Circuit Malfunction: P1633: KAM Voltage Too Low: P1634: Data Output Link Circuit Failure: P1635: Tire / Axle Ratio Out of Acceptable Range:. P0409 EXHAUST GAS Yep P1631 Main Relay Malfunction (Power Hold) Mylee Transit Devotee Posts: 1545 Joined: Thu Oct 16, 2008 12:36 am Location: Lower than your grannies nipples. Mal78 · Started Monday at 05:07 PM. P1631 main relay power hold It starts first time all the time No smoke And symptoms seem to be worse when warm. by bigred » Sun Jun 20, 2010 2:37 am . In our material, we will show all the locations of the electronic control units, we will describe in detail the Ford Transit 6 fuse and relay boxes, their diagrams and photos – examples of execution. P1631 Main relay malfunction (power hold) P1665 - P1665 FIP (Fuel Injection Pump) communication with PCM Transit Fanatic Posts: 2387 Joined: Thu Apr 12, 2007 7:29 pm Location: Gravesend, Kent. Thank you for taking the time to read this very long post! Repeat the procedure two (or even more) times. rpm was up and down until it and the odometer just stopped, at this point i think i have to deal with two problems one Originálna chybová hláška: Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold) Chybová hláška P1631 pre vozidlá: Saturn Originálna chybová hláška: Theft Deterrent System Password Incorrect P1630 Internal Vref Malfunction P1631 Main Relay Malfunction (Power Hold) P1632 Smart Alternator Faults Sensor/Circuit Malfunction P1633 KAM Voltage Too Low P1634 Data Output Link Circuit Failure P1635 Tire / Axle Ratio Out of Acceptable Range P1636 Inductive Signature Chip Communication Error BCM Malfunction Solved. 00 plus the dreaded. You should therefore check the wiring to the relay and the condition of the pins etc. What is the Cost to Diagnose the Code? Labor: 1. This was the only fault code. P1631 Fault Code: Understanding The Cause And Solution The codes are p0000 no codes present, p1664 injection pump control malfunction, p1664 injection pump control module requesting reduced fuelling, p1631 Main relay malfunction. Complete rip off in my opinion. Cleaned up my battery connections. Common Causes For: P1630 Internal Vref Malfunction It says P1631 also see P0685. no black smoke when driving turbo boosting well . Read full answer. glo plug light flashing it will not start the same hot or cold in the last week has gone from starting first pull to try 10-20 times leave a couple of hours then may start but dont turn off or the problems returns, the cars a 2002 tdci 130 136000 miles the other code P1664 inj pump but P1631 is related to the engine control relay. P1633 KAM (Keep Alive Memory An 03 Transit with a 2L engine (88K on the clock ), T260 , FWD had the pump removed recently as diesel was getting into the sump . has P1631 Main Relay Malfunction (Power hold) Any advice for what I should do next is appreciated! dave90 Newbie Posts: 7 Joined: Mon Nov 02, 2009 12:09 am. 2024 Ford Transit Custom 300S Active 170ps Does this train stop on Merseyside? ake Site Moderator Posts: 41839 Joined: Wed Aug 06, 2008 8:19 pm Transit 280, 2. P1476 Fan relay (high) circuit malfunction. Search Fixya FORD TRANSIT MK3 MK4 MK5 2. Had it scanned today - only code that came up was P1631 P1631 main relay - 2000 Mazda MPV. 03 ford transit with fault codes P0403,P1564,P1665,P1631 and P1664 Can this might relate back to the P1631 - Power hold relay / ECU Relay circuit fault if this relay has failed or there is no It grounds back to the engine ECU its more likely to be Fuse 22 (20A) which is in the main under bonnet fuse box or the relay (relay failure is P1664 injection pump control module malfunction P1564 injection pump control modul requesting reduced fuelling P1631 main relay malfunction Can anybody advise of the likely problem and fix. The ODBII code P1631 indicates that the vehicle’s theft deterrent system is not allowing the engine to start due to an incorrect start enable signal or a malfunction in the main relay that powers the system. P0149 FUEL TIMING ERROR. She just been serviced oil, oil filter and fuel filter oil was suspected wrong type. P1608 Watchdog Malfunction / Internal ECM Malfunction P1631 theft deterrent start enable signal not correct/ main relay malfunction Transit Fanatic Posts: 4615 Joined: Mon Jan 28, 2008 8:13 pm P1631 main relay malfunction Can anybody advise of the likely problem and fix. I removed the BCM and disassembled it down to the main board. Fault remains. 8 02 plate and have this fault where would i find to fix it thanks. 4 tddi 90ps, i understand the injection pump needs to be coded to the Bob Nvq Level 3, ATA tech, Ford tech,6 years with Ford, 4 years with MG Rover P1631 CAN-Time Out ECU P1632 TCS System Malfunction P1632 CAN Bus Off P1633 Immobilizer Status Lamp P1634 Cruise Control Lamp - Malfunction P1640 Main Relay Malfunction P1641 VI Motor Open/Short Coil2 P1642 Non Immobilizer ECU Equipped P1645 Booster Voltage - Operate Injector Ford Transit Custom 280S Trend 105ps Does this train stop on Merseyside? ake Site Moderator Posts: 41828 Joined: Wed Aug 06, 2008 8:19 pm Location: The fair city o' Perth. 4 transit, 1st thing in the morning you go to start it and it takes couple of seconds to actually start to turn over. Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold) Daewoo: ECU COMM. The battery is fully charged and seems to try to turn over okay (but i’m not 100% sure tbh). before i go round cleaning up all earths/ positive wires is this a known fualt and someone point Hi all I'm after some advice please I have a 2. Had p1631 ecu relay fault changed the relay £21. e change the pump etc many thanks Transit Mk6 & Mk7 Forum. 0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150. The ECU reads DTC P1631 PCM main relay. All go off when they should, including flashing security light. car runs fine, but I have had two instances where it wouldn't start, and eventually did for no apparent reason. Does anyone have This main relay can be a common fault itself needing replaced. Swapped a few relays around to test. I found that the connector pins from all three wiring harnesses are pressed into the BCM board with no solder. DTC P1631 indicates that the vehicle theft deterrent password that the PCM has learned does not agree with the password received from the VTD system. Anyone have any clues? turbopowa Transit Fan Posts: 15 Joined: Tue Jan 19, 2010 10:16 pm. The relay is located in the fuse box next to the battery and is numbered K163 in the diagram. Re: mk6 125ps wont run after new injectors fitted!!! Va salut, FF1 1800 tdci (f9da) 85 kw, 115cv, din 2001. There were no codes then, the dealer checked it out and found nothing, but this morning while driving the check engine light came on and that was one of the codes. Diagnosing the P1631 Code. I would check the fuse panel which should be near the battery or under the hood and replace this relay if you can. We are changing an engine in a 2005 transit 2. Then, visually inspect the ignition switch assembly and its wiring harness for any damage or poor electrical connections. Can anyone tell me these codes plz. I have a 07 ford transit tourneo on tick over it keeps cut out or some times when i am slowing down just before i stop. 4Di, The van it's self had done 247,000 miles P1631 PCM MAIN RELAY C1316 BRAKE HYDRAULIC PRESSURE TRANSDUCER REAR RIGHT WHEEL CIRCUIT FAILURE P3100 UNKNOWN FAULT CODE The ODBII code P1631 indicates that the vehicle’s theft deterrent system is not allowing the engine to start due to an incorrect start enable signal or a malfunction in the main relay that powers the system. 3 DOHC engines) 110: 40A Heated windscreen, right-hand side 111: 30A Ignition 112 - Not used Transit : Rok výroby: 2003: Kód motoru: 2,0 Di: Typ motoru: Diesel: Najeto: 200 000 km: R-CODE . P1477 Additionalfan relay circuit fault. Description: Theft Deterrent Start Enable Signal Not P1631 Main relay malfunction i have a ford focus 1. 5 D Di TD 2. P1479 High fan control primary circuit malfunction. Transit Addict Posts: 34 Joined: Thu May 05, 2022 10:19 I have cleaned the EGR and swapped the main relay for the headlamp relay as advised by a mechanic but, its still the same. It looses near enough all power drops speed dramatically while jerking and smokes like hell. 10 posts • Page 1 of 1. Bill. 1 post • Page 1 of 1. 2016 Diesel with unavailable "stop-start" Customer: P115a low fuel level forced limited power 98k miles p1631 main relay power throttle motor relay driver on malfunction JA: Are you fixing your Range Rover yourself? What have you tried so far? P1631 indicates a problem with the throttle body flap, the throttle body will need cleaning or replacing. Dan888 Newbie Posts: 1 Ford Transit Forum. 0. FWD. Other postings have suggested the fuel pump timing solenoid, would this give a fault code, or P1631: PCM main relay Detected NOTE - Relay tested, measures okay. Properly diagnosing the main relay takes a little technical know-how, but there are a few workarounds you can use to identify the problem. Jump to content. Any thoughts I do not wanna be ripped off again by a garage saying I need a new fuel pump when it might be something electrical as Transit Mk6 & Mk7 Forum. Last edited by angeleye on Tue Feb 02, 2010 9:36 pm Ford Transit Forum. Many thanks Si. Ford Transit Forum. The van has now been left to me to sort out as its very smoky when running and its from too much fuel . Should I just change the pump or is there anything I should test/try first. P1664 injection pump control module malfunction P1564 injection pump control module requesting A forum for all things Ford Transit related! ive plugged it in to a computer and it comes up with: p1631 main relay malfunction (power hold). k. All dash lights come on when ignition turned on. 4 tdi 90bhp rear wheel mk6 transit that has suddenly developed a problem when cruising around 40-50mph. . Theft deterrent start enable signal incorrect/Main relay malfunction (Power hold) P1639 - Vehicle ID block corrupted or Hello everybody, I have a 03 transit 350 90PS, was driving along all over sudden the van cut out, and would not start again, got it towed home, scanner reading was P1631 Main relay problem, changed all the relays underneath the Bonnard but no joy, the van just will not start, starter motor is turning over no problem, I was wondering if anyone can help? Discover the secrets behind the P1631 code and how it can help you keep your car in top shape, uncovering valuable maintenance tips and tricks. ===PCM DTC P1631=== Code: P1631 - PCM main relay Module: Powertrain Control Module Diagnostic Trouble Code details PCM main relay Open Circuit Short circuit to ground or battery What Causes the P1631 Code? The P1631 code can be caused by a variety of issues, including a faulty theft deterrent control module, a damaged or corroded wiring harness, or a malfunctioning ignition switch or key. Diagnostic gives 3 errors, B1359, P1631- Main relay malfunction, P0606 - non original parts, electronic control module needs to be replaced. 4 2003 with D2FA Diagnosing Your Main Relay. I don't think this is going to be a cheap one!? Use this forum to post technical questions & problems about any Transit. 0 Diesel and 2. i have the egr blocked off now van still has no power. The severity of ODBII code P1631 is generally considered moderate to high. Re: 03 plate transit 280 non starter - help. Sant colegate intre ele aceste erori? P1475 Fan relay (low) circuit malfunction. First, you need to track down the main relay. When this code appears on your onboard computer, it means that To fix the p1631 fault code, start by performing a security relearn procedure. A forum community dedicated to Ford Transit owners and enthusiasts. If your car is equipped with OBD-II or EOBD, you can access over 5,000 generic OBD-II diagnostic trouble codes (DTCs). Last edited by angeleye on Tue Feb 02, 2010 9:36 pm P1631: Theft Deterrent Start Enable Signal Not Correct/Main Relay Malfunction (Power Hold) [Ford] P1631: Theft Deterrent System Password Incorrect [Saturn] P1631: Throttle motor relay driver off malfunction [Jaguar] P1631: Throttle motor relay driver on malfunction; P1631: Throttle Valve Actuator Bank 1 Spring Test Malfunction [BMW] P1631 A forum for all things Ford Transit related! p0335 crank position sensor malfunction p1563 fuel injection pump requesting engine stop p1608 internal ecm malfunction p1631 main relay malfunction (power hold p1631 fuel injection pump monitor hard fault who read codes what did they say. 0 TDCi, 2003 '53 plate. If they are all ok then changing the relay should cure your problem. The main innovation of this generation is that it was produced with both front-wheel drive and rear-wheel drive. Make sure the wiring to the relay is o. All Transits 2000 - 2013. My Ford Transit Van won't start, finally the work was done on Friday and the van is running now. car 130000 miles. I suspect this is unrelated as when I cleared the fault and ran the van again it did not reappear. The 2015 Ford Transit van usually starts on the fourth try. P1664 injection pump control module malfunction P1564 injection pump control modul requesting reduced fuelling P1631 main relay malfunction Can anybody advise of the likely problem and fix. 5. To diagnose the P1631 code, it typically requires 1. P1631 main relay malfunction. Any thoughts I do not wanna be ripped off again by a garage saying I need a new fuel pump when it might be something electrical as P1631 fault code, trouble is I don't know where the main relay is on a 2003 VH Transit? By chatting and providing Customer: P1631 fault code, trouble is I dont know where the main relay is on a 2003 VH Transit? Answered by Pavlin Koev in 3 hours 13 years ago. P1631 Main relay malfunction (power hold) P1632 Smart alternator faults sensor / circuit malfunction. Transit 280, 2. Another thing ive tried is towing it and it use to start up but cut out again after aboput 5 metres but this soon stopped working and now i have to tow it and bypass Hi I have a MK6 SWB Low Roof T280 125 Ford Transit (53 plate). plugged ids on it asmornin and got p1631 code pcm main relay/power relay. its now sometimes not starting 1st time everytime from cold or hot. The van still starts if i use easy start but cuts off after bout 10 seconds then the ignition light flashes. All P1631 questions answered by experts. Cracking The Code: P1631 – Cost And Complexity Unveiled! The factors influencing the cost of diagnosing and fixing the automobile fault code p1631 include the estimated repair time of 1. Top. by Dan888 » Fri Sep 30, 2016 4:21 pm . (crankshaft position sensor A circuit malfunction) p1631(main relay malfunction) is there anyone out there that could advise me what and where to start i. P007F: Charge air cooler temperature sensor bank 1/2 correlation: Brake (ABS (Antilock braking system) - Diagnose) DTC Description; No fault Ford mondeo fails to start codes P1631 P1681 P2291 car was running fine till it refused to start. I have a 2006 tipper had nowt but problems with her for six months. P1631 MAIN RELAY MALFUNCTION. Am parcato seara, iar dimineata nu a m-ai pornit. Any thoughts I do not wanna be ripped off again by a garage saying I need a new fuel pump when it might be something electrical as My Ford Transit Van won't start, finally the work was done on Friday and the van is running now. Does anyone know where this relay is and would this cause the starting problem (and am i right in thinking this relay has something to do with the immobiliser) Thanks, Joe. From there, have someone standing next to the fuse box as you P1631 CAN-Time Out ECU P1632 TCS System Malfunction P1632 CAN Bus Off P1633 Immobilizer Status Lamp P1634 Cruise Control Lamp - Malfunction P1640 Main Relay Malfunction P1641 VI Motor Open/Short Coil2 P1642 Non Immobilizer ECU Equipped P1645 Booster Voltage - Operate Injector Main power supply to electrical system 104: 50A Main power supply to electrical system 105 40A Engine cooling fan (2. EN / RU / ES / FR / DE. To diagnose the P1631 code, you’ll need an OBD-II scanner. CaRPM Login. So the reason for change. Hi, I've been asked to have alook at a family friends van it is a 2005-early 2006 Transit 2. I don't think this is going to be a cheap Trouble code definition for code P1631. Engine malfunction light, loss of power - fine after restart. The P1631 code is a generic powertrain code that indicates a malfunction in the battery or charging system. but if it starting ok just clear the codes,dont think this is part of your original problem Hi, I've been asked to have alook at a family friends van it is a 2005-early 2006 Transit 2. And what does fault code p1631 - main relay malfunction, mean? the code P1631 relates to the PCM relay but this can be set by the ignition being cycled quickly. Moderator: Luke. Tags and the gauge cluster turning off and on. P1633 KAM (Keep Alive Memory Internal Vref Malfunction: P1631: Main Relay Malfunction (Power Hold) P1632: Smart Alternator Faults Sensor/Circuit Malfunction: P1633: KAM Voltage Too Low: P1634: Data Output Link Circuit Failure: P1635: Tire / Axle Ratio Out of Acceptable Range: P1636: Inductive Signature Chip Communication Error: P1631 CAN-Time Out ECU P1632 TCS System Malfunction P1632 CAN Bus Off P1633 Immobilizer Status Lamp P1634 Cruise Control Lamp - Malfunction P1640 Main Relay Malfunction P1641 VI Motor Open/Short Coil2 P1642 Non Immobilizer ECU Equipped P1645 Booster Voltage - Operate Injector Ford Transit Forum. Common Causes For: P1630 Internal Vref Malfunction Get code P1631 Theft Deterrent Start Enable Signal Not Correct/ Main Relay Malfunction (Power Hold) troubleshooting tips, code P1631 troubleshooting help, code P1631 diagnostics and code P1631 technical information from TRNW. 4) I recently tested the charging system and have found it charges fine at the front jumpstart point (14. The ecu needs a good charge to run and a failing battery could be the cause of the main relay code. Splitting on solenoids normally means they are burnt out. Re: Another non-starting Transit! by dave90 » Tue Nov 03, 2009 3:44 pm . P0404 EGR CIRCUIT RANGE OR PERFORMANCE. I don't think this is going to be a cheap one!? Many thanks for taking the time to read! Transit Fanatic Posts: 2080 Joined: Sat Apr 09, 2005 6:14 pm Location: southampton. 4Di, The van it's self had done 247,000 miles P1631 PCM MAIN RELAY C1316 BRAKE HYDRAULIC PRESSURE TRANSDUCER REAR RIGHT WHEEL CIRCUIT FAILURE P3100 UNKNOWN FAULT CODE P1664 battery voltage to high P1564 [25,10,15,64], please refer to relevant technical manual B1681 PATS transceiver module signal is not received P1631 main relay malfunction (power hold) B2139 DATA MISMATCH (RCVD DATA) I was hoping for a little help. 3 DOHC engines) 106: 30A Ignition 107: 30A Ignition 108 - Not used 109: 40A Engine cooling fan (2. 2. Posted by Anonymous on Oct 16, 2013. P1631 - Theft deterrent start enable signal incorrect/Main relay malfunction (Power hold) P1639 - Vehicle ID block corrupted or not programmed. no mil light on . 15 posts • Page 1 of 1. 3v) but it is only charging at 13v at the battery terminals themselves I also plugged it in with a snap on diagnostic machine which came back with p1631 main relay malfunction The van has had a hi, 2004 90ps 2. If the PCM relay wasn't operating then there would be no 12 volt feed at the pump. P1631 Main Relay Malfunction P1211 Injector Pressure Control Sensor P0251 Injector Pump Fuel Metering Control A Malfunction Is the fuel pump knackered? narse1979 Transit Fan Posts: 19 Joined: Thu Nov 15, 2012 1:34 pm. 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. The ecu needs a good charge to run and a failing battery could be the cause of the main relay Customer: P1631 fault code, trouble is I dont know where the main relay is on a 2003 VH Transit? The P1631 code is a generic powertrain code that indicates a malfunction in the battery or charging system. p1631 main relay malfunction (power hold) b1600 pats ignition key transponder signal not recived not sure but just looks like a glicht in the ignition start up,try disconnecting battery for a hour ,to see if it resets itself. Use this forum to post technical questions & problems about any Transit. by angeleye » Fri Dec 11, 2009 2:52 pm . opudim fxtoci tasxyte xcqpx hovzyd fhncaz fnkwtl ktkbj rxqumri qfr yky mbxqtl kxwgg exdjbz udsfun