EPCU Repair Intake Form DRG Auto EPCU / Hybrid & EV Power Control Unit Repair Intake Form Complete Sections A–D as a minimum. Sections E–G help reduce diagnostic delays and unnecessary bench time. If you have not performed a check, mark it as "Not tested". Section A — Contact & Job Details Workshop / Company * Contact name * Phone * Email * Return shipping address * Section B — Vehicle Details Make * Model * Year * VIN / Serial number HV battery voltage / system Odometer / hours Vehicle type * EVHybridPlug-in Hybrid (PHEV)Other electrified platform If Other electrified platform Section C — EPCU / Module Details Module type * Select module typeEPCU / Power Control UnitInverter / ConverterBattery control / power electronics moduleHybrid power control moduleOther If Other module type Manufacturer (if known) Select manufacturerBoschDensoDelphiSiemensContinentalOther If Other manufacturer Part number(s) on label * HW / SW version (if shown) Is this the original unit for this vehicle? * YesNoUnknown Has the module been opened / repaired before? * NoYesUnknown Photos supplied Label(s)Connector pinsCorrosion / water damageBurn marks / blown components Section D — Fault Description Main symptom * Will not go READYNo drive / no movementReduced power / limp modeHV system faultNo inverter / motor driveOn-board charging fault12V charging issue from DC-DCCommunication issue (no comms / intermittent comms)Isolation fault / insulation warningIntermittent shutdown / cut outWarning lights / fault messagesOther If Other main symptom Fault first occurred after Low voltage / flat 12V batteryBooster pack useAccident / impactWater ingressWiring or other repair workModule removal / refitUnknown / gradual Fault behaviour * ConstantIntermittentTemperature-relatedVibration-relatedLoad-relatedUnknown Short description (what happens + when) * Section E — Scan Results & Fault Codes Scan tool used (brand + model) Fault codes / diagnostic codes (list all current + stored codes) Code status Current / ActivePendingStored / History After clearing codes, they Select resultReturn immediately (key on / power on)Return during startupReturn while driving / operatingDo not return / cannot clearNot tested Section F — Electrical & Communication Checks Power & grounds Constant power present (B+)Ignition / wake power presentGrounds checked (voltage drop or confirmed good)Not tested Module communication status FullIntermittentNo communicationNot tested Battery voltage KOEO (V) Battery voltage during startup / load (V) Ground voltage drop under load (V) Fuses / relays / supply checks Fuses checked under loadRelay operation / control verifiedPre-charge / main supply checkedNot tested If intermittent / no comms CAN High / Low checked at connectorNo CAN short to power / ground foundLIN / other network checked (if applicable)Not tested CAN resistance checked (powered down) Ohm Do other modules communicate normally? YesNoNot tested If No, which modules / what happens Section G — What Has Been Tried Checks / actions already attempted Known-good 12V battery used for testingWiring faults found / repairedConnectors cleaned / inspectedKnown-good related modules testedSoftware update / coding attemptedProgramming / cloning attempted If yes, tools / method used Any other notes / observations Section H — Matching / Included Items Is the EPCU / module matched or coded to the vehicle? * YesNoUnknown What is included in the package? * EPCU onlyEPCU + related control module(s)EPCU + keys / immobiliser componentsConnectors / pigtailsOther modules (list below) Other modules / included items Section I — Shipping Checklist This form is printed / included in the box Module is packed securely Module is clearly labelled (vehicle + module type + your job reference) If matched / coded, package is clearly labelled accordingly Your job / reference number Attachments Attachment 1 Attachment 2 Attachment 3
