115
DTC 110-ECT/Low/High/Short/Open
Step Action Value(s) Yes No
1
From Diagnostic tool, monitor ECT.
Is the displayed temperature reading esti-
mated engine temperature
Key ON, ECT should reflect engine tempera-
ture?
Intermittent
fault. See wir-
ing
schematics
and check
circuits from
C034 to ECU-
B for possible
short to
ground.
Go to step2
2
Disconnect connector C034
From monitor, does temperature read 214° C?
(Default)
Go to Step
(3)
Go to Step
(4)
3
With C034 disconnected, measure the vol-
tage across C034 pins A and B
Is voltage between 4.8 and 5.2 volts?
NOTE: Do not probe wires without proper ser-
vice tool. Permanent harness damage may
result.
Between 4.8
and 5.2 V
Replace the
sensor. Go
to Step (5)
Go to Step
(4)
4
With C034 and ECU-B disconnected, meas-
ure the resistance from C034 pin 1 to ECU-B
pin F2, C034 pin 2 to ECU-B pin F4 and
across C034 pins 1 and 2.
Is the resistance less than 5 ohms from C034 to
ECU-B and greater than 30M across C034?
<5 and
>30M
Replace the
ECU. Go to
Step (5)
Repair fault in
harness. Go
to Step (5)
To Next Page
Loading...