2024 Vauxhall Combo Life Electric · Mileage withheld
67 fault codes and no EV Ready—the failed inverter behind a Vauxhall Combo shutdown
A 2024 Vauxhall Combo Life Electric arrived unable to enter EV Ready. Sixty-seven DTCs obscured the failure, but fault ranking, shared-platform diagnostics and live data isolated the electric-machine inverter. Replacement restored normal inverter operation, HV transfer and EV Ready.
The Combo powered up—but the high-voltage drivetrain never completed EV Ready.
EV Ready is the result of a sequence, not one switch. Wake-up, battery safety checks, pre-charge, contactor closure, inverter self-test, torque authorisation and park release must all agree. The failed inverter stopped that sequence in the middle.
- The vehicle would power up but would not reach the EV Ready state required for driving.
- A large number of faults appeared across unrelated modules, making the primary failure difficult to see.
- Battery, park-lock, charger and network warnings could easily have encouraged unnecessary parts replacement.
- The repair required proof that the inverter itself—not the traction battery—was preventing drivetrain authorisation.
The vehicle network was alive. What was missing was the inverter state needed to close the complete drive-authorisation chain.
All 67 DTCs preserved. Four direct faults changed the direction of the diagnosis.
The complete 27-system report is shown rather than hiding background faults. Primary inverter evidence is separated from start-sequence consequences, low-voltage context and unrelated body defects.
B12BA:87IntermittentThe body controller was not seeing a valid request to release the electric drivetrain. This described the no-ready state but not its root cause.
B115B:62PresentA body-equipment record with no causal relationship to inverter operation.
B116F:15PresentLighting circuit record preserved from the original scan.
B116E:15PresentLighting circuit record preserved from the original scan.
B1137:15IntermittentLighting circuit record preserved from the original scan.
B1138:15PresentLighting circuit record preserved from the original scan.
B118E:15PresentLighting circuit record preserved from the original scan.
U1F00:00PresentA generic event-history entry rather than a component diagnosis.
B1003:00PresentThe diagnostic platform itself warns that this may be a phantom configuration record.
P0E8C:01IntermittentA direct electrical failure reported inside the inverter/electric-machine controller. It disappeared after inverter replacement.
P1780:01IntermittentThe inverter voltage stage was electrically implausible, supporting a power-electronics failure rather than a simple start-button problem.
P1086:09IntermittentThe electric-machine ECU saw another HV power-electronics assembly in an invalid operating state during the failed start sequence.
U2000:87IntermittentThe wake-up chain did not remain coherent while the drivetrain attempted to initialise.
U2003:62IntermittentThe requested start state and the state returned by the drivetrain did not agree.
U1600:87IntermittentA communication consequence recorded as the inverter/controller failed to complete initialisation.
U114A:87IntermittentA second lost-information record supporting disruption across the drivetrain control chain.
U1213:81PermanentThis remained after the inverter repair and was therefore separated from the no-EV-Ready root cause.
P1086:47IntermittentAn internal power-electronics status fault stored by the electric-machine ECU during the failed start event.
U1F00:00PermanentGeneric event memory; useful for chronology but not sufficient to identify a failed component.
U0167:87IntermittentThe start-authorisation exchange between body and drivetrain controllers was interrupted.
P06B8:96IntermittentA direct internal controller fault. Its disappearance after replacement was important repair evidence.
P060C:04IntermittentA second direct internal ECU fault strengthened the diagnosis beyond a single intermittent voltage code.
P1702:68IntermittentA shutdown-sequence record which remained independently of the inverter repair.
C162A:7APermanentA braking-system issue requiring separate attention, not the cause of the inverter internal faults.
U1FA0:00IntermittentA display/video-link timing record unrelated to drivetrain authorisation.
U1F00:00IntermittentGeneric parking-module history.
B1223:14PermanentParking sensor circuit issue preserved for transparency.
B1224:14PermanentParking sensor circuit issue preserved for transparency.
B1227:14PermanentParking sensor circuit issue preserved for transparency.
B1228:14PermanentParking sensor circuit issue preserved for transparency.
U1158:87IntermittentAnother HV controller lost the body-status information required during the failed wake-up event.
P0D94:64PermanentA charging-current record; final OBC/DC-DC scan was clean after the drivetrain repair.
P1082:09IntermittentThe supervisor escalated the invalid HV operating state while the vehicle could not initialise.
P1083:09IntermittentA higher-level consequence within the same failed HV start sequence.
U1463:81IntermittentThermal-accessory communication record, not supported as the no-ready cause.
P0562:16IntermittentLow-voltage history could amplify communication noise, but it did not explain the paired inverter electrical and internal faults.
P10DD:09IntermittentThe supervisor could not authorise the front electric machine because its inverter/controller was faulty.
P117C:96IntermittentCooling-valve history with no direct link to the recovered inverter self-check.
P117A:16IntermittentPart of the low-voltage/event cascade rather than the proven inverter failure.
P117C:16IntermittentPart of the low-voltage/event cascade rather than the proven inverter failure.
P1AEF:07PermanentA stored collision-related record; battery insulation and status were later verified as normal.
U1213:81PermanentThis remained after the successful inverter repair and was not the no-ready root cause.
U115E:87IntermittentThe supervisor temporarily lost the controller integrated with the failed inverter.
P1060:72IntermittentPark-lock release is part of drive authorisation; the module was clean after inverter replacement.
P1AEF:68PermanentA stored event record assessed separately from live battery safety data.
P0AD9:13IntermittentThe HV contactor chain did not complete while the drivetrain controller was failing its start sequence.
P1068:09IntermittentA supervisory escalation during the aborted HV initialisation, not proof of a failed battery pack.
P106A:09IntermittentA higher supervisory fault level generated during the same aborted start sequence.
P14CA:09IntermittentA protective warning; subsequent live data showed normal battery status and insulation.
P106C:13IntermittentRecorded while the HV path could not complete. Later live data confirmed the service connector and wiring were sound.
P17C3:04IntermittentStored during the failed drivetrain-authorisation sequence and absent from the post-repair module scan.
P17C3:09IntermittentA companion park-lock consequence which cleared after the inverter repair.
U1F00:00IntermittentGeneric history retained for completeness.
P160E:68IntermittentA shutdown/power-latch event rather than a direct inverter diagnosis.
C120D:A2PermanentPower-steering calibration/supply history, still separate from the repaired drivetrain.
U115E:87IntermittentThe park-lock controller lost the electric-machine ECU integrated with the failed inverter.
P17C3:16IntermittentLow-voltage history within the park-lock module.
P0562:16IntermittentA second low-voltage record retained from the initial scan.
U0115:87IntermittentPeripheral communication history unrelated to inverter self-check.
U1F00:00IntermittentGeneric pedestrian-warning module history.
U1FA0:00IntermittentInfotainment/video-link timing record.
U1476:87PermanentEthernet/infotainment record that remained independently of the drivetrain repair.
U1F00:00PermanentGeneric infotainment history.
U1471:00Not statedPeripheral RF module record with no observed drivetrain relationship.
U2132:02Not statedPeripheral RF module record with no observed drivetrain relationship.
B1651:00Not statedPeripheral RF module record with no observed drivetrain relationship.
B1472:00Not statedPeripheral RF module record with no observed drivetrain relationship.
P0E8C / P1780Inverter electrical failureVoltage stage implausibleP06B8 / P060CController internal failureSelf-check not completedNO READYTorque not authorisedDrive sequence inhibitedWhen the badge-specific route stopped early, platform knowledge opened the whole drivetrain.
The Combo Life Electric shares the Stellantis K9 architecture with the Peugeot Partner and Rifter. That relationship exposed the modules and live data needed to distinguish an inverter failure from a traction-battery problem.
Use the correct shared platform
The direct Vauxhall profile exposed only limited modules. The Combo shares the Stellantis K9 EV architecture with Peugeot Partner/Rifter, so the compatible K9 profile provided access to the complete electric drivetrain.
Preserve all 67 codes
The first 27-system scan was retained in full. Faults were grouped by the module that detected them, then ranked as primary inverter faults, start-sequence consequences, context or unrelated defects.
Prioritise direct internal evidence
P0E8C, P1780, P06B8 and P060C directly described inverter electrical, voltage and internal ECU faults. They carried more diagnostic weight than secondary lost-communication and contactor records.
Exclude the traction battery
The service connector and wiring were reported intact. Battery status and cold start were normal, insulation testing showed no fault, and usable HV voltage remained available.
Read the start chain as a sequence
The BSI requested wake-up, the HV system attempted pre-charge and the drivetrain supervisor waited for a healthy inverter self-check. The inverter never returned the state needed to complete EV Ready.
Verify after replacement
The entire vehicle was rescanned, followed by focused inverter live data. Direct inverter faults disappeared, HV appeared at the inverter input and output, torque control was accepted and inverter status became normal.
Diagnostic principleA vehicle-wide fault storm is not evidence that every listed system has failed. The decisive evidence was the concentration of electrical and internal faults inside the electric-machine inverter, the consistent downstream authorisation failures, the healthy traction-battery safety data and the disappearance of those inverter faults after replacement.
Watch the EV Ready chain stop at the failed inverter—then complete after replacement.
This simplified interactive model explains the diagnostic logic. It is not a manufacturer wiring diagram.
Replace the component that failed its own electrical and internal checks.
The repair followed the evidence. It did not treat every consequence code as another failed part.
- 1Make the vehicle safe
The high-voltage system was made safe and the absence of dangerous voltage was confirmed before component access.
- 2Expose the power electronics
The failed electric-machine inverter/power-electronics assembly and its HV, low-voltage, coolant and motor interfaces were exposed.
- 3Replace the inverter
The defective inverter assembly was removed and replaced with the correct compatible unit.
- 4Reconnect and secure
All electrical, high-voltage and thermal connections were refitted, routed and checked before energising the system.
- 5Reinitialise the drivetrain
The drivetrain was powered, relevant initialisation checks were completed and historic fault memory was cleared only after the hardware repair.
- 6Prove EV Ready
A full scan and live-data session confirmed normal inverter status, torque acceptance, HV transfer and the return of EV Ready.
Platform access, fault ranking and measured verification.
The breakthrough came from combining the right diagnostic route with evidence across the complete HV start chain.
Autel MaxiSYS Ultra EV
Initial 27-system scan, fault ranking, shared-platform access, live-data capture and post-repair verification.
Stellantis K9 diagnostic architecture
Used the compatible Peugeot Partner/Rifter K9 profile to reach the complete electric drivetrain hidden from the limited Vauxhall path.
Inverter & HV live data
Confirmed service connector integrity, normal battery safety status, inverter input/output voltage, torque acceptance and normal inverter state.
Evidence standard: initial and final whole-vehicle reports plus focused battery and inverter live-data captures were matched by VIN and chronology. The VIN and customer identity are withheld from publication.
The inverter became normal. Torque was accepted. EV Ready finally appeared.
After replacement, all direct inverter electrical and internal faults were gone. Inverter input and output were approximately 364 V, the inverter reported normal status, rotor calibration was complete and the vehicle finished the drive-authorisation sequence.
Drive authorisation restored
Vehicle finally completed the start sequence
Direct inverter faults
Electrical and internal faults removed
HV through inverter
Input and output readings agreed
Systems rescanned
Whole-vehicle post-repair evidence
EV Ready restored and drivetrain operational
The inverter replacement resolved the fault chain that had prevented high-voltage drive authorisation.
faults remaining
About this Real Case: This genuine repair is reconstructed from archived workshop diagnostic evidence and the confirmed completed repair. Personal identifiers and the VIN are withheld. The shared-platform access and animation explain diagnostic principles; they are not a substitute for Vauxhall/Stellantis workshop information or high-voltage safety procedures.