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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.58
58 PS
PS Ha
Error code: A7
Error code: A7
Sit
Situat
uation
ion
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1) Disconnect battery plug
(1) Disconnect battery plug
(2)
(2) Disc
Disconnect Connecter E-08 of EPS
steering wheel
steering wheel
unit sensor
unit sensor
Check continuity between E-08-17 and F-01-5(30)
Check continuity between E-08-17 and F-01-5(30)
Check continuity between E-08-33 and F-01-6(31)
Check continuity between E-08-33 and F-01-6(31)
(3) Connect
(3) Connect
Measure resistanc
Measur
8.0 Ω
8.0 Ω
W
W i
(
(
5
5
)
)
R
R
e
e
p
p
Hand
ndle B
le Bra rake F
ke Fau
ault lt (A (A7) 7)
Ste
Steeri
ering w
ng whee
heel re
l react
action f
ion for orce d
Steering wheel unit fault, harness fault, power steering controller fault
Steering wheel unit fault, harness fault, power steering controller fault
Steering wheel reaction force brake current FB is 1.2A or more.
Steering wheel reaction force brake current FB is 1.2A or more.
Steering wheel reaction force brake command value > 0.2A and current FB < 0.16A
Steering wheel reaction force brake command value > 0.2A and current FB <
Overcurre
Overcurrent detected by
nt detected by overcurren
overcurrent detection circuit.
onnect Connecter E-08 of EPS
controller and
controller and
C
C
o
o
n
n
t
t
i
i
n
n
u
u
i
i
t
t
y
y
N
N
o
o
t
t
F-01
F-01
e
resistance betweenE-08-17
e betweenE-08-17
at
at
-3 -30°(-2
0°(-22°F)
2°F)
to 14.9 Ω
to 14.9 Ω
at
at 80°(
80°(-176°
it
t
h
h
i n
i n
t
t
h
h
e
e
r
r
a
a
n
n
g
g
e
e
O
O
u
u
t
t
s
s
i
i
d
d
e
e
l
l
a
a
c
c
e
e
p
p
o
o
w
w
e
e
r
r
s
s
t
t
e
e
e
e
r
r
i
i
n
n
g
g
c
c
o
o
n
n
t
t
r
r
o
o
l
l
l
l
e
e
r
r
ce disa
isable
bled, an
d, and tr
d trave
avelli lling s
ng spee
peed lim
t detection circuit.
F-01
F-01
C
C
o
o
n
n
t
t
i
i
n
n
u
u
i
i
t
t
y
y
(4) Replace harness
(4) Replace harness
andE
andE
-08-33
-08-33
-176°F)
F)
t
t
h
h
e
e
r
r
a
a
n
n
g
g
e
e
(
(
6
6
)
)
R
R
e
e
1
1
2
2
E-27
E-27
d limite
ited to 5 k
d to 5 km/h
m/h. .
0.16A
p
p
l
l
a
a
c
c
e
e
s
s
t
t
e
e
e
e
r
r
i
i
n
n
g
g
w
w
h
h
e
e
e
e
l
l
u
u
n
n
i
i
t
t
501138
501138
2-129
2-129
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