We compile ECU PINOUTS for every all FORD’s Electronic Control Units! As demonstrated in the video below, you select by specific Ford Model and year, market or by vehicle code!
ย ย ๐
๐ These files useable on all platforms, SmartPhone, Computer, Android, IOS, everywhere on every anything๐ (Prepare enough space, the ‘thing‘ is a over 8GB zipped PDF files)ย
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Before dismantling the ECU to do other deep testing & repair of the internal circuits on-bench, lets start with the obvious on-board troubleshooting to establish all the power inputs to the ECU!
Kabla ya kuhangaika kubomoa ECU ili ufanye uchunguzi au na urekebishaji wa saketi za ndani kwenye benchi, wacha tuanze na utatuzi njia zote za umeme wa kwenda kwenye ECU!
Make sure on testing, the battery on that vehicle is of optimum voltage, depending! Like when the Engine is NOT running, for small vehicles atleast 12.5V, and or 25V for heavy vehicles!
Hakikisha ukipima betri kwenye gari hilo lina volti ya kutosha! Kulingana aina ya gari, lakini , kwa magari madogo angalau 12.5V, na au 25V kwa magari makubwa!
YOU MAY WATCH THIS VIDEO HERE< otherwise ukitaka eendlea kusoma tu!
Don’t assume, test all the ground/Negative, direct & indirect connections of the battery to the ECU via the chassis!
Husidhani, hakikisha umekagua, kupima miunganisho yote ya ground, yaani njia negativu ya betri ya kwenda ECU! Kuna njia za moja kwa moja, na zinazopitia chasi (bode au mwili wa gari)!On in some vehicles, these could be the Ground Terminals of the ECU
Katika baadhi ya magari, haya mashikisho ya kufunga ECU yanaweza kuwa njia ya moto wa groundi au negativu ya betri kufika kwa ECU Otherwise check the ECU pinout for the Ground terminals or pinouts, make sure all link up to the battery’s ground terminal!
Vinginevyo, angalia mchoro au pinout ya ECU utambue Ground ni ipi, then uhakikishe zote zimeunganishwa kwenye groundi au negativu ya betri! And be carefull so many ECU could be having more many Ground or negative terminals, make sure all connections are proper! Na kuwa mwangalifu, maaana ECU nyingi zinakuwa na groundi au negative nyingi! So, hakikisha zote zimemeunganishwa poa!
www.5021.tips/ujanja/ecu
Infact, pins 4 & 5 on the OBD connector is another way to test!
Uchawi mwingine, ni kwenye lile boya unapoweka diagnosis mashine, pin ya 4 na 5 ni ground, moja kutokea ECU na ingine betri! Wahtever the case, make sure the battery’s negative terminal is free of any…..ย
Remember, ECU pinouts data is everywhere on google, Yandex, etc, so you get to know which pin is for who which what on the ECU! We always pile up all ECU pinouts on this link below
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Usipate mawazo ya wapi utapata kujua kazi ya kila pin iliopo ECU, hiyo link hapo juu ndo tumekuwekea hizo PINOUTS za kila gari!
Kwanza, on most or all ECU’s, there is a wire that requires “battery constant power” even when IGINITON SWITCH is OFF!
This enables the ECU to keep powering the memories that store vital information about the vehicle’s engine and other systems, and that’s why on some vehicles when you disconnect the battery, the vehicle behaves strange!
Or why if when a vehicle develops weird behaviors, to reset it back to normal, it’s recommended to disconnect the battery for some time to drain all the capacitors keeping charge!
Alafu, kwenye ECU nyingi au zote, kuna waya inaoitwa “battery constant power line” au waya inayohitaji kubeba na kupeleka moto au umeme kwenye ECU, wakati wote hata kwa IGINITON OFF!
Hii ni kuiwezesha ECU kuendelea kuimarisha, kuhifadhi, kumbukumbu zinazohifadhi taarifa muhimu kuhusu mazoea ya mifumo mbali mbali kwenye ya gari, kama ingini, usalama, nk!
Na, ndiyo maana kwenye baadhi ya magari unapoondoa betri, gari inafanya vya ajabu tofauti, ata zingine zinagoma kuwaka!
Au, infact hii kwa nini ikiwa gari linapokuwa na tabia zisizo za kawaida, ili kuirejesha katika hali ya kawaida, inashauriwa kukaata au kutoa betri kwa muda ili kuondoa vidhibiti vyote vinavyoweka chaji au umeme!
www.5021.tips/ujanja/ecu
The voltage between the ground & this constant battery voltage should better give you the exact voltage between the vehicle’s battery terminals!
That constant Battery voltage is always, usually via a FUSE before reaching the ECU! So, should you NOT be getting this voltage, take in count this FUSE!
Kwa kupima umeme ilipo kwenye hii waya, lazima iwe sawa sawa na umeme wa betri!
Ukiona hakuna, lazima ukumbuke kuna FYUZI (fuse) And the other ‘ujanja’ is to measure the resistance of each respective wire, between the battery terminals and connection points to the ECU! The resistance better be almost next to Zero, otherwise….
Ujanja ingine ni kupima REZISITENSI (resistance) ya kila waya, katoka kwa betri na mpaka hapo zinapoingilia kwenye ECU! Uzuri sana zaidi ukipata ‘homuzi’ (ohms) sifuri, uzuri ni ukipata ohms kasoro kidogo kwa sifuri!
Ukipata ohms kubwa, ina maana kuna sehemu hiyo waya inagusa au… chunguza niaje! OR, further better, do a voltage drop test of on those wires! Measure the battery voltage, and voltage between these wire at the ECU connection points!
The voltage had better been the same or at worst similar with a tiny voltage difference of almost Zero! Should the voltage drop be extreme, then do the needful, check check the wiring!
Kuna uchawi unaitwa “VOLTAGE DROP TEST”! Sii hii waya ya “constant battery power” bla blaa inatoka moja kwa moja betri, alafu na hiyo ya groundi au negative!
Sasa unapima umeme uliopo betri, alafu unaulinganisha kwa au na umeme uliopo kwenye hizi waya huku upande wa ECU!
Ukiona kuna upungufu mkubwa, then kuna vurugu sehemu, nk! Chunguza kwa makini kabla kusingizia ECU ndo mbovu!
This is all when the ECU is in STAND-BY MODE, Ignition OFF, vehicle is parked, just sleeping!
Hapo juu, kila tumefanya wakati IGNITION iko OFF, hakuna ufunguo!
www.5021.tips/ujanja/ecu
When turn the key to IGNITION ON, the battery Positive line is relayed to the ECU, via a fuse! On some vehicles this IGNTION ON completely, fully powers the ECU!
Unapozungusha ufunguo kuweka IGNITION ON, hapa ndo unaamusha ECU kwa kuipatia umeme kupitia njia ingine ya kutokea betri, obviously kwa kupitia fuse!
Kwenye baadhi ya magari, IGNITION ON pekee ndo inaiwezesha ECU kikamilifu, na huu umeme kwenye hii waya ndo unaofanya ile bla blaa ya ECU relay! Remember there is a Relay switch & fuse!
When testing for this line’s voltage, the voltage between this wire and ground, better give you the vehicles’s battery voltage, with IGNITION ON!
And so should the resistance of this wire at the ECU connector point and battery terminal, give you almost zero resistance
Kumbuka kuna swichi ya Relay na fuse! Unapochunguza umeme kwenye hii waya, kwenye SWITCH ON, lazima upate umeme wa betri!
On updated systems, IGNITION ON creates the ignition switch ON signal, and when this signal is input into the ECU, the ECU, in-turn, turns ON the main ECU control relay.
Kwenye mifumo mingine, huu umeme wa IGNITION ON unazalisha siginal kutoka ECU kwenda kwa ‘Rwile’, yaaani Relay, amabao inaitwa ECU relay, ambapo umeme wa rasmi kuwezesha ECU kikamilifu!
That wire from the ECU to the main ECU relay should be ground, connecting to with other ground wires or body!
Waya hiyo ya ‘IGNITION ON signal’ kutoka kwa ECU hadi ECU relay, inapaswa kuwa ya ground au negative, so wakati unakagua ukumbuke ili!
When the engine control relay is turned ON, the battery power will be supplied from the ECU control relay to every all over the ECU, sensors and actuators.
Sasa, huu moto au umeme kutoka kwenye hii ECU relay, pamoja na kuwezesha ECU kikamilifu, ata hizo sensa (sensors) na actuator zinazohitaji umeme kufanya kazi, zitakuwa zinapata kutoka kwenye hii wire!
On testing this line, it’s voltage with the ground should be equal to battery voltage Unapopima au kuchunguza umeme kwenye hii waya, voltage yake na ground au negative inapaswa kuwa sawa na voltage ya betri! Alafu ile blaa blaa ya resistance nayo iwe bora sifuli!
www.5021.tips/ujanja/ecu
This general or full powering of the ECU even switches on the CAN line communications to from with other ECU’s, including the OBD socket to do DIAGNOSIS!
ECU ikipata umeme rasmi, hapo ndo ata zile CAN kuwasiliana ECU zingine zitaanza, pamoja na ile tundu la OBD unapoingiza Diagnosis Mashine!As we earlierย discussed, you measure the frequency signals on these CAN wires
Congs, We have now delivered 12.6V or 24.6V from the battery to the ECU, but the thing (ECU) operates at on with low 5V, 3.5V and other lower DC voltages that fit in well with electronic computer logic voltages.
Hongera, Sasa tumefaulu kupeleka au kuchunguza ufikaji wa umeme, 12.6V au 24.6V, kutoka kwa betri hadi kwa ECU, lakini hii kitu (ECU) inafanya kazi kwa kutumia 5V, 3.5V na voltages zingine za chini za DC ambazo zinalingana voltages za mantiki ya digitali au kompyuta kielektroniki. NEXT, lets deep into that magic of WHAT WHY HOW this battery voltaged is safely harnessed into proper voltages for the different blocks of the ECU!
HAPA UJANJA tu!
INAYOFUATA, tuaanze kuingia ndani mwa ECU upande wa power management, tuone huo uchawi wa namna voltage ya betri na ukubwa wa voltage wake, jinsi inaunganishwa kwa usalama katika viwango sahihi vya vizuizi tofauti vya ECU! HAPA UCHAWI tu!
We deep into those ECU power modules, how they work, testing, if faulty, how to resource & replace any spares!
Tunazingatia sana moduli hizo za power ndani mwa ECU, jinsi zinavyofanya kazi, kupimwa, ikiwa ni mbaya, jinsi ya kupata ingine inaoingiliana, na kuzibadilisha baada ya kugunduwa ndo yenyewe inaosababisha ECU kuwa mbovu!
Sekta ya Magari inabadilika, utekelezaji wa mifumo ya kielektroniki inapunguza uwezo wako fundi amabo hutaki kujiongeza ufahamu! Siku hizi ata fundi mekanik unapaswa, au bora, kujifunza umeme wa magari, maana gari zote zimekuwa umeme tu!
WARNING WARNING
Kama hutaki kujisumbua na hizi loongo looongo, heti masomo๐คฃ๐๐ Bonyeza๐ HAPA ๐moja kwa moja upate kupata uchawi unaoonyesha michoro za ECU circuits na maelezo kuhusu nini na kazi ya vifaa fulani viliopo, yaani ECUcomponents’ description and purpose!
MALENGO YA HUU UJANJA
ONYO: Hapa tunaenda pole pole, kwanzia chini kabisa, hakuna hiyo blaa blaa ya kwamba hukwenda shule so hutaelewa, hapana! Hizo sijui huna umri kadha so haitawezekana, hapan! Infact, wewe ukijiona wa juu, tafadhali usijiunge kwa na ujanja hu!
Anyway, kusudi kuu la huu unjanja ni kukumbushana au kufundishana uteuzi mpana wa mbinu zinazotumika kwa moduli au ECU tofauti za kielektroniki za gari, ambapo wanafunzi huendelea kwa uhuru, ujuzi, wajanja zaidi kutoa suluhisho zilizosasishwa kwa kazi zote zinazohitajika katika magari ya leo.
MAHITAJI
> Maarifa ya kimsingi au uzoefu wa ukarabati (ufundi) wa magari ni wa manufaa > Akili iliyofunguliwa tayari kujifunza mambo ya kutatanisha >Vinywaji vya Suzan
Kwanza, ni kukumbuka ile blaa blaa ya chekechea, msinji wa ECU ni nini, ni ya kazi gani, infanyaje kazi, nk!
Then tutapanda Primary, hizo masensa (sensors), actuators, CAN, nk! Kwasababu, na kwa mfano, husipojua sensor inafanyaje kazi, inapokea au kupeleka nini kwa ECU, then… Kujua tu ina waya ngapi haitoshi, haina ata maana! Like tukisema hiyo Diode kwenye ECU inapokea umeme wa CMP sensor yenye waya mbili, kwako inaeza kuletea maana chap chap kwasababu unajua CMP sensor ya waya mbili inazaa umeme wa AC wakati ECU inakuwa ya umeme DC, nk, tofauti na ile ya waya tatu!
I swear, ukielewa mfumo wa sensor, actuator, nk inakuwa rahisi!
WARNING WARNING
Kama hutaki kujisumbua na hizi loongo looongo, heti masomo๐คฃ๐๐ Bonyeza๐ HAPA ๐moja kwa moja upate kupata uchawi unaoonyesha michoro za ECU circuits na maelezo kuhusu nini na kazi ya vifaa fulani viliopo, yaani ECUcomponents’ description and purpose!
Sekondari sasa, kuelewa hutwo tudoido doido au Electronic Componets ziliopo kwenye ECU au kwenye motherboard yeyote ya kifaa cha umeme, yaaani Capacitor, Diode, EEPROM, Resistor, Processor, Transistor, nk! Jinsi zinafanya kazi but especially namna ya kupimwa na madhara mengine!
Tutaanza chuo, kuelewa architecture ya ECU, yaani usanifu ya namna ECU inaundwa, kama ramani hiivi (default MAP) amabao inafatwa na kila anaeunda ECU! Ni maarifa ya vipengele vikuu vinavyounda ECU. Mfano kuna upande unashugulika na utoaji, output au actuators, mfano kama injector. Kuna upande wa upokeaji ama input wa ma sensors, mfano AirFlow meter. Then kuna upande wa kati kati, processing au tuseme mfumo wa usindikaji wa MCU au prosesa!Ujuzi wa vipengele vinavyofanya kazi. Utambulisho wa kila mmoja wao na kazi gani wanafanya ndani ya ECU, kila componet husika, ili kwamba ata ukikutana issue au dalili ya ECU mbovu, chap chap, HAPA UJANJA ju!
Kuendelea na uchambuzi wa familia tofauti za ECU, aina au kampuni tofauti za ECU! Uchambuzi wa nomenclature ya kama BOSCH, DELPHI, SIEMENS, nk, ndaani ndaani katika vitengo vya Dizeli na Petroli! Uchambuzi wa lahaja tofauti za vitengo, kutegemea mifumo ya sindano!
Then zile loooongo longo za ECU simulator, ChipTuning, lalal laa la..
Kama hutaki kujisumbua na hizi loongo looongo, heti masomo๐คฃ๐๐ Bonyeza๐ HAPA ๐moja kwa moja upate kupata uchawi unaoonyesha michoro za ECU circuits na maelezo kuhusu nini na kazi ya vifaa fulani viliopo, yaani ECUcomponents’ description and purpose!
Just like the video below shows, this Nissan Pathfinder R51 Service, Diagnosis, Repair Manual covers all aspects of vehicle repair, maintenance and rebuild specifications for all mechanical components, including engine, gearbox, differential, front axle, along with repair and replacement guidelines for suspension, steering, brakes, body panels, interior fittings, electrical components.
Also covers electrical system with wiring diagrams and diagnostic data, plus detailed troubleshooting guides. Go below the video to download
This is COMPLETE official OEM full workshop service repair manual containing easy-to-read text sections with top quality diagrams and instructions includes:
Detailed sub-steps expand on repair procedure information,
Notes cautions and warnings throughout each chapter pinpoint critical information,
Numbered instructions guide you through every repair procedure step by step,
Bold figure number help you quickly match illustrations with instructions,
Detailed illustrations, drawings and photos guide you through every procedure,
Enlarged inset helps you identify and examine parts in detail,
Numbered table of contents is easy to use so that you can find the information you need it fastly,
Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use and to makes it easy to repair problems with your carโs electrical system!
You may watch this video showing you the contents, after go below to download!
This list is very incomplete, tunaendelea kuweka๐ค! So, ukikosa uliotaka, shuka chini ya hii page utujulishe tukutumie fasta fasta, au zungumza/chat withย SUZANย if She is online! HAPA UJANJA tu๐!
This list is very incomplete, tunaendelea kuweka๐ค! So, ukikosa uliotaka, shuka chini ya hii page utujulishe tukutumie fasta fasta, au zungumza/chat withย SUZANย if She is online!ย HAPA UJANJA tu๐!
This list is very incomplete, tunaendelea kuweka๐ค! So, ukikosa uliotaka, shuka chini ya hii page utujulishe tukutumie fasta fasta, au zungumza/chat withย SUZANย if She is online!ย HAPA UJANJA tu๐!
This list is still very incomplete, tunaendelea kuweka๐ค! So, ukikosa uliotaka, shuka chini ya hii page utujulishe tukutumie fasta fasta, au zungumza/chat withย SUZANย if She is online!ย HAPA UJANJA tu๐!
This is COMPLETE official OEM full workshop service repair manual containing easy-to-read text sections with top quality diagrams and instructions includes: Detailed sub-steps expand on repair procedure information,
Notes cautions and warnings throughout each chapter pinpoint critical information,
Numbered instructions guide you through every repair procedure step by step,
Bold figure number help you quickly match illustrations with instructions,
Detailed illustrations, drawings and photos guide you through every procedure,
Enlarged inset helps you identify and examine parts in detail,
Numbered table of contents is easy to use so that you can find the information you need it fastly,
Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use and to makes it easy to repair problems with your carโs electrical system!
You may watch this video showing you the contents, after go below the video to download!
๐
Includes, GRJ120, 125 series RZJ120, 125 series KDJ120 125series KZJ120 series LJ120, 125series
This manual provides information on the electrical circuits installed on these vehicles, the actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point.
When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Point section). See the System Outline to understand the circuit operation.
This service manual iko kwa lugha ya English, and it has been prepared to provide SUZUKI service personnel with the necessary information and data for the correct maintenance and repair!
This manual includes the procedures for diagnosis, maintenance, disassembling, reassembling, inspection and adjustment of components and diagnostics for guidance of experienced mechanics.
Hii PDF inakuonesha wapi sensor, actuators, fuses, blaa blaa, zilipo! Unachuguzaje kukiwepo tatizo, mashine ikikupa OBD code unawezaje kuendelea kurebisha, aiiise ata hizo wiring za control boxi, na blaa blaa zingine!
Ni PDF ata unaweza ku download kwenye simu๐ฒ au unaendelea kusomea hapa hapa! Ukitaka ECU pinouts za gari zingine bonyeza HAPA HAPA
Unajua, this is the most incomplete list, yaani haaaaaishi, juu kila wakati tunaweka mchoro mpya wa ECU, iwe ya Engine, ABS, Suspension, Airbag, nk!
Tunaweka za kila gari, kwa namna PDF au Picha, ina maana hata kwenye simu inafunguka fasta fasta!
Kwa mfano, hapa chini๐ni PDF ya mchoro wa ECU ya Toyota Echo blaaa blaaa, so unabonyeza tu kwa jina na inafunguka๐คทโโ๏ธ, hebu bonyeza uone!
Zingina zinafunguka kama picha, mfano bonyeza hii ya Nissan uone niaje ๐Picha NISSAN GTR ECU engineย ย ๐
Sasa, hapa chini ukichagua aina ya gari itakupeleka kuliopo ECU pinouts, then uchague unaotaka efunguke kama picha au pdf, just๐คทโโ๏ธ
NOTE๐ข Hizi ni ECU pinouts tu, ukitaka ECU CRIRCUIT BOARD kujua uchawi wa componets ndani mwa ECU kama diodes, capacitor, IC, blaa blaa, bonyeza HAPA
ONYO: kabla hujabonyeza kwenda kwenye aina ya gari, hakikisha umemalizana SUZAN, chupa zake๐ป mbili tu! Asante๐! Na pia ukikosa ECU pinout yeyote mujulishe SUZAN akutumie fasta fasta, akiwa offline bonyeza hapa utume ujumbe!
This manual provides information on the electrical circuits installed on these vehicles by dividing them into a circuit for each system.
NOTEย
Forother systems& orToyota Hilux Brands, you may click HEREย or the the photo๐below
The actual wiring of each system circuit is shown from the point where the power source is received from the battery as far as each ground point. (All circuit diagrams are shown with the switches in the OFF position.)!
When troubleshooting any problem, first understand the operation of the circuit where the problem was detected (see System Circuit section), the power source supplying power to that circuit (see Power Source section), and the ground points (see Ground Point section).
See the System Outline to understand the circuit operation.
When the circuit operation is understood, begin troubleshooting of the problem circuit to isolate the cause.
Use Relay Location and Electrical Wiring Routing sections to find each part, junction block and wiring harness connectors, wiring harness and wiring harness connectors, splice points, and ground points of each system circuit.
Internal wiring for each junction block is also provided for better understanding of connection within a junction block. Wiring related to each system is indicated in each system circuit by arrows (from__, to__).
When overall connections are required, see the Overall Electrical Wiring Diagram at the end of this manual.
Hizi engine za nissan YD25DDTi unazikuta kwenye, akina NAVARA, PATHFINDER, MURANO, URVAN, nk! Sasa, kwenye hiki kitabu kuna blaa blaa zote za wiring, pamoja na maelekezo ya OBD fault codes!
Kama kawaida, au jinsi zinakuanga, hapa unaoneshwa uchawi wooooote wa umeme wa hiizi gari! Utaona michoro ya wire, namna kupima au kuchungunza, kutatuta matatizo ya umeme, a.k.a electrical troubleshooting tips!ย Unaeza kusomea hapa, au ukitaka ku download bonyeza kwenye document uanotaka!
Alafu chini kaabisa ndo kuna OVERALL ELECTRICAL WIRING DIAGRAM ukikosa ya specific system unaotafuta!
The common rail system uses a type of accumulation chamber called a rail to store pressurized fuel, and injectors that contain electronically
controlled solenoid valves to inject the pressurized fuel into the cylinders. Because the engine ECU controls the injection system (injection pressure, injection rate, and injection timing), the injection system is independent, and thus unaffected by the engine speed or load.
This ensures a stable injection pressure at all times, particularly in the low engine speed range, and dramatically decreases
the amount of black smoke ordinarily emitted by a diesel engine during start-up and acceleration.
As a result, exhaust gas emissions are cleaner and reduced, and higher power output is achieved.
Huu ni mkusanyiko wa picha au vitabu (PDF) yakuonesha michoro pamoja na kazi ya vifaa (electronic componets) zizilyopo kwenye motherboard za ECU.
Mfano; ni yipi Processor, EEPROM, Controller ama DRIVER ya injectors, sensors…nk!
Alafu pia kuna ECU PINOUTS especially kama unafanya hizo kazi za ECU kuingia ndani ndani kwasababu kama hujui niaje, hautasadiwa na hii program๐คทโโ๏ธ!
Hapa chini kuna video yenye maelekezo unaeza kuona namna ya kutumia pamoja na contents…
BUT kama hutaki kuharibu muda wako๐haya bhasi then moja kwa moja BONYEZA HAPA UPATE
Sii unajua kuna maelekezo jinsi ya kufungua, kufunga, kurekebisha, ku fanya hiki na kile…pamoja na michoro ya wiring, picha zote๐!
Iliaandaliwa na wataalamu wenyewe๐, so…..?
Hebu tazama hii video uone niaje๐, kiisha shuka chini uweze kui download!
๐tuliekezana!
Anyway, baada ya kutambua na kusoma data kutoka hiyo EEPROM ya funguo ama DPF ama whatever, hiyo data unaiingiza tu kwa hii program na ndani ya sekunde 0 sifuri, program inafanya uchawi kisha kurudishia data utakapoingiza /kurudisha/kunadika kwenye hiyo EEPROM namna hii video inakuonesha!
Na hii pia maana kuna zingine ukizikosa unazikuta huumu๐
Otherwise check the ECU pinout for the Ground terminals or pinouts, make sure all link up to the battery’s ground terminal!
And be carefull so many ECU could be having more many Ground or negative terminals, make sure all connections are proper!
Wahtever the case, make sure the battery’s negative terminal is free of any…..ย 
And the other ‘ujanja’ is to measure the resistance of each respective wire, between the battery terminals and connection points to the ECU! The resistance better be almost next to Zero, otherwise….
OR, further better, do a voltage drop test of on those wires! Measure the battery voltage, and voltage between these wire at the ECU connection points!
This is all when the ECU is in STAND-BY MODE, Ignition OFF, vehicle is parked, just sleeping!
As we 
NEXT, lets deep into that magic of WHAT WHY HOW this battery voltaged is safely harnessed into proper voltages for the different blocks of the ECU!
We deep into those ECU power modules, how they work, testing, if faulty, how to resource & replace any spares!
Like tukisema hiyo Diode kwenye ECU inapokea umeme wa CMP sensor yenye waya mbili, kwako inaeza kuletea maana chap chap kwasababu unajua CMP sensor ya waya mbili inazaa umeme wa AC wakati ECU inakuwa ya umeme DC, nk, tofauti na ile ya waya tatu!
Ujuzi wa vipengele vinavyofanya kazi. Utambulisho wa kila mmoja wao na kazi gani wanafanya ndani ya ECU, kila componet husika, ili kwamba ata ukikutana issue au dalili ya ECU mbovu, chap chap, HAPA UJANJA ju!
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