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The Audi A5 car can't start the car
  • Automotive

Fault diagnosis: computer detection can not reach, ignition switch can not open, MMI system work normal, instrument display ESL fault, query TPI need to replace J393 and steering column control unit, cross connect 15 relay computer detection engine, gearbox can not reach, the rest normal. The replacement of the two control units according to TPI indicates that the fault remains unchanged. Adjust the idea, check the ELAS check engine power supply, insurance is normal, check the engine control unit, unintentionally found under the control unit with 1 red wires, check the appearance of no damage and skin, the instrument after installation is normal, start the normal vehicle. Troubleshooting: reinstall the power supply line.

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