2005 CAMRY (EWD586U)
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2. Control System
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SFI system
The SFI system monitors the engine condition through the signals input from each sensor to the engine control module.
And the control signal is output to TERMINALS #10, #20, #30, #40 of the engine control module to operate the injector
(Inject the fuel). The SFI system controls the fuel injection operation by the engine control module in response to the
driving conditions.
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ESA system
The ESA system monitors the engine condition through the signals input to the engine control module from each sensor.
The best ignition timing is decided according to this data and the memorized data in the engine control module and the
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4. This signal controls the igniter to provide the best
ignition timing for the driving conditions.
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Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of
exhaust emissions is low), and warms up the heated oxygen sensor to improve detection performance of the sensor.
The engine control module evaluates the signals from each sensor, and outputs current to TERMINALS HT1B and
HT1C (California) to control the heater.
3. Diagnosis System
With the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioning
system is recorded in the memory. The malfunctioning system can be found by reading the code displayed by the
malfunction indicator lamp.
4. Fail–Safe System
When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control
based on the signals from that system, the fail–safe system either controls the system by using data (Standard values)
recorded in the engine control module memory or else stops the engine.
Summary of Contents for 2005 Camry ACV30 Series
Page 21: ...2005 CAMRY EWD586U 20 F RELAY LOCATIONS Engine Compartment Body ...
Page 22: ...2005 CAMRY EWD586U 21 F Instrument Panel Seat ...
Page 23: ...2005 CAMRY EWD586U 22 F RELAY LOCATIONS 1 Engine Room R B Engine Compartment Left See Page 20 ...
Page 24: ...2005 CAMRY EWD586U 23 F 2 ABS R B Radiator Side Support LH See Page 20 ...
Page 25: ...2005 CAMRY EWD586U 24 F RELAY LOCATIONS Engine Room J B Engine Compartment Left See Page 20 ...
Page 26: ...2005 CAMRY EWD586U 25 F ...
Page 27: ...2005 CAMRY EWD586U 26 F RELAY LOCATIONS Engine Room J B Inner Circuit ...
Page 28: ...2005 CAMRY EWD586U 27 Memo ...
Page 29: ...2005 CAMRY EWD586U 28 F RELAY LOCATIONS Driver Side J B Lower Finish Panel See Page 21 ...
Page 30: ...2005 CAMRY EWD586U 29 F ...
Page 31: ...2005 CAMRY EWD586U 30 F RELAY LOCATIONS Driver Side J B Inner Circuit ...
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Page 33: ...2005 CAMRY EWD586U 32 F RELAY LOCATIONS Driver Side J B Inner Circuit ...
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