HYBRID/TROUBLE SHOOTING
3–678
DTC: P0AA4 (TCD9)
EN01H03ZZZ030602004054
DTC: P0AA4 (TCD9) SMR#1 and 3 (negative side) contact sticking
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected a contact sticking in the SMR#1 (precharge) and SMR#3 (negative side terminal).
2.
DTC set condition
(1)
DTC detection condition
•
Control power supply voltage is 8 V or more.
•
The motor revolution is 500 r/min or less.
(2)
Judgement criteria
•
DC voltage > [DC voltage (value obtained at the timing of SMR#2 being turned ON) + 30 V] is detected contin-
uously for 0.01 second.
3.
Reset condition
•
DC voltage
≤
[DC voltage (value obtained at the timing of SMR#2 being turned ON) + Threshold value (30 V)] is
detected continuously for 0.01 second.
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
•
HV warning light: ON
Inverter
High voltage J/B
High voltage J/B
D
38
39
40
CON3-38 CON1
CON4-39 CON2
CON4-40 CON3
F-
F+
15
2
3
4
SMR1
SMR2
SMR3
HV Battery 288 V
Service plug
D
D
P
l
m
p
J/B (+)
k
n
q
J/B (-)
P
P
P
SHTS03ZZZ0300443
