Advertisement
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.21
21 PS
PS Mo
Error code: 49
Error code: 49
Situation
Situa
tion
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1) Disconnect battery plug, then perform inverter discharging work
(1) Disconnect battery plug, then perform inverter discharging work
(2)
(2) Ch
Check E
eck
looseness and improper contact
looseness and improper contact
(3)
(3) Disc
Disconnect steering
Measur
Measure res
(5)
(5) C
Check c
heck
(7)
(7) Disc
Disconnect connector E-08
controller
controller
Check DSP flat cable for looseness or
Check DSP flat cable for looseness or
wire breakage
wire breakage
Gate power
Gate power
supply
supply
(11)
(11) D
Disconnect connec
isconnect
Check continuity between E-01-5 and E-08-10(9)
Check continuity between E-01-5 and E-08-10(9)
Check continuity between E-01-6 and E-08-25(12)
Check continuity between E-01-6 and E-08-25(12)
(13) Disconnect connector E-02 of logic unit
(13) Disconnect connector E-02 of logic unit
Check continuity between E-02-5 and E-08-21(3)
Check continuity between E-02-5 and E-08-21(3)
Check continuity between E-02-6 and E-08-30(4)
Check continuity between E-02-6 and E-08-30(4)
(14) Co
(14)
Connect connec
nnect
power again
power again
(16) Measure
(16) Measure
Moto tor O
r Ope
pen (
n (49
49) )
Displ
Display:
ay: "49".
"49". All
All oper
operation
ations i s inhibit
Faulty contact or wire breakage of ST motor cable,
Faulty contact or wire breakage of ST motor cable, faulty ST motor, faulty contact or wire
controller connector, wire breakag
controller connector, wire breakage of main harness,
after motor shorted
after motor shorted
Motor voltage is abnormal when power is turned on. Current does not flow when torque instruction is
Motor voltage is abnormal when power is turned on. Current does not
requested.
requested.
EPS c
PS
controller
ontroller
and motor for cable
and motor for cable
Normal
Normal
onnect steering
motor cables from
motor cables from E
e
resistance
istance
of motor cables(U
of motor cables(U
Less
Less
than
than
1
1
Ω
Ω
1
1
Ω
Ω
connec
onnector E-08
tor E-08
of EP
of
EPS con
S
controller
troller
Normal
Normal
onnect connector E-08
of EP
of
EPS
S
and remove
and remove
DSP
DSP
cover
cover
Normal
Normal
Abnormal
Abnormal
connector E-01
tor E-01
of logic unit
of logic unit
Continuity
Continuity
No
No
CA
CAN
N
Continuity
Continuity
No
No
connector E-01
tor E-01
to logic unit, then turn on
to logic unit, then turn on
voltage between
voltage between
E-08-10(9) and
E-08-10(9) and
nhibited
ed exce
except pt mast
mast lowe
lowering
ring oper
faulty ST motor, faulty contact or wire breakage of left PS
e of main harness, faulty power supply card of
faulty power supply card of logic unit, when restarting
Abnormal
Abnormal
EPS c
PS
controller
ontroller
(4) Secure cable if loose
(4) Secure cable if loose
and
and
W phas
W
phases)
es)
or
or
more
more
for
for
looseness
loosen
ess
(6) Measure resistance between terminals of both cable
(6) Measure resistance between terminals of both cable
Abnormal
Abnormal
(8) Connect connector securely
(8) Connect connector securely
(9)
(9) Repla
Replace left
ce left
traction motor
traction motor
(12) Secure DSP flat cable if loose
(12) Secure DSP flat cable if loose
continuity
continuity
continuity
continuity
(15) Repair or replace harness
(15) Repair or replace harness
E-08-25(12)
E-08-25(12)
operation
ation. L . Line
ine stee
steering
ring cont
contactor
logic unit, when restarting
flow when torque instruction is
ends (between U and U, and W and W)
ends (between U and U, and W and W)
Less
Less
than
than
1
1
Ω
Ω
(10) Replace motor cables
(10) Replace motor cables
Replac
Replace EPS co
e EPS
controller
ntroller
if
if
wire
wire bre
breaks
501137
501137
2-53
2-53
actor OPEN
OPEN. .
breakage of left PS
1
1
Ω
Ω
or
or
more
more
aks
Advertisement
