Toyota 2006 PRIUS Manual page 12

System System
EVAP (Evaporative
Emission) Control System
[See page 16]
HV Immobilizer
Diagnosis Diagnosis
[See page 29]
Fail-safe
NEW FEATURES - 1NZ-FXE ENGINE
Outline Outline
The ECM controls the purge flow of evaporative
emission (HC) in the canister in accordance with
engine conditions.
Approximately five hours after the power source mode
has been selected to OFF, the ECM operates the leak
detection pump to detect any evaporative emission
leakage occurring in the EVAP (evaporative emission)
control system through changes in the system
pressure.
Fuel delivery, ignition, and starting of the hybrid
system are prohibited if an attempt is made to start the
hybrid system with an invalid key.
When the ECM detects a malfunction, the ECM
diagnoses and memorizes the failed section.
All the DTCs (Diagnostic Trouble Codes) have been
made to correspond to the SAE controlled codes.
When the ECM detects a malfunction, the ECM stops
or controls the engine according to the data already
stored in the memory.
13
'06 06 '05 05
Models Models
f f
f
—
NF
f f
f f
f f
f f