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Detected items Engine operating condition in fail-safe mode
Engine coolant tem-
perature sensor circuit
Engine coolant temperature will be determined by ECM based on the time after turning ignition switch
“ON” or “START”.
CONSULT-II displays the engine coolant temperature decided by ECM.
Condition
Engine coolant temperature decided (CONSULT-II
display)
Just as ignition switch is turned ON or Start 40°C (104°F)
More than approx. 4 minutes after ignition ON or
Start
80°C (176°F)
Except as shown above
40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling fan operates
while engine is running.
SEF058Y
DTC Confirmation Procedure
NFEC1432
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
WITH CONSULT-II
NFEC1432S01
1) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Wait at least 5 seconds.
4) If DTC is detected, go to “Diagnostic Procedure”, EC-210.
WITH GST
NFEC1432S02
Follow the procedure “WITH CONSULT-II” above.
DTC P0117, P0118 ECT SENSOR
On Board Diagnosis Logic (Cont’d)
EC-208
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