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ELECTRICAL
37
Sr
No DTC Code
DTC
Descriptio
n
Minimum Time for
Fault Setting /
Tester Visibility,
Assuming Fault
was created while
Ignition was OFF
Impact on customer Probable cause
Investigation/Rectificati
on/Repair action
7
U0131 08
Lost
Communic
ation with
EPAS -
Bus Signal
/ Message
Failures
1 to 1.25s
Hard steering, EPAS
lamp ON. Default
steering assistance
1. EPAS ECU is connected
properly in the vehicle.
2. EPAS ECU
battery/Ignition fuse is not
connected properly in Fuse
Relay Box.
3. Improper/ No Grounding.
4. Permanent open circuit
failure in CAN High line of
EPAS stub (or connector) in
wiring harness.
5. Permanent open circuit
failure in CAN Low line of
EPAS stub (or connector) in
wiring harness.
6. EPAS ECU CAN High or
Low line terminal back out at
EPAS wiring harness
connector.
1. Check if EPAS ECU is
connected properly in the
vehicle.
2. Check if EPAS ECU
Ignition/Battery fuse is
connected properly in
Fuse Relay Box (EFRB),
if fuse not present or
blown connect/replace
the fuse.
3. Check for ground line
connected properly.
4. Check if EPAS ECU
CAN lines are connected
properly in vehicle.
5. Repair the wiring
harness.
8
B1912 15
Park Brake
Warning
Indicator
Input -
circuit
short to
battery or
open
Post execution of
Service Self-Test
Routine (or) EOL
Self-Test Routine <=
20sec delay time.
Park brake TT will
always be turned
OFF till this DTC is
active.
Park brake input short or
open
Park Brake input shorted
to battery positive or
Park brake input not
connected to IC or Park
brake input wire cut.
9
B1912 11
Park Brake
Warning
Indicator
Input -
circuit
short to
ground
Post execution of
Service Self-Test
Routine (or) EOL
Self-Test Routine <=
20sec dealy time.
Park brake TT will
always be turned ON
till this DTC is active.
Park brake input short
Park Brake input shorted
to battery negative or
Ground.