NANO

ELECTRICAL 25 2.6 DIAGNOSTIC TROUBLE CODES - EPAS Sr No DTC No Code Description Probable causes Rectification/Repair actions 1 U3001 - 00 Control Module Improper Shutdown Performance - no sub type information 1) Sudden Loss of power or 2) Discharge battery or 3) battery terminal (loose/ Sulphated /corroded) or 4) EPAS power connector loose or 5) No output from alternator or 6) fuse blown in fuse box 7) ECU pin bend / damage 1) Check wiring Connections & connectors of power supply if damaged than Replace the vehicle wiring harness or connector. 2) Check battery voltage (>11.5V) and alternator voltage (13.5 V to 14.5 V in engine running condition) and check battery & alternator if required Charge the battery or Repair/Replace the Alternator. 3) Check ECU connector pins bend/damage than replace the ECU. 4) Check Fuses in Fuse box ( J-Case Fuse (60 Amp)) if fuse is blown than replace a fuse if DTC is still persist than replace the ECU. 2 U3006 - 16 Control Module Input Power "A" - circuit voltage below threshold 1) Discharged Battery or 2) Battery cable terminal (corroded/Sulphation/Loose) or 3) Alternator is undercharging or 4) High resistance within the supply cable or 5) EPAS power connector loose 1) Check wiring Connections & connectors of power supply if damaged than Replace the vehicle wiring harness or connector. 2) Measure supply voltage (>11.5V) at ECU power supply connector from wiring harness side if voltage is not < 11.5V than charge the battery after that if low voltage again persist check the battery if required replace the battery. 3)Check resistance between vehicle ground and ground at the power supply connector(should be <1 ohm) if resistance did not meet the requirement check the wiring connection and if problem still persist than replace the wiring harness. 4) Check the fuses in Fuse box (J- Case Fuse (60 Amp)) if fuse is blown than replace a fuse. 5) Check alternator voltage (13.5 V to 14.5 V in engine running condition) 6) Check the power supply line for short circuit if persist change the wiring harness.