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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.