Engine Control for 2TR FE

Transcription

1 Engine Control for T FE From ower Source System (See age 7) 0A EFI A A/F HEATE A IN AM I 6 C I ST I 7 Ignition S E 7 EA 0A AM C 0A EFI N. A EFI elay E A 0 A A 0 A A A/F HEATE elay A C/N elay F Fuel Suction ump and age Assembly 8 I M attery E EA E D TYTA TACMA (ED6U)

2 From ower Source System (See age 7) 7. A STA 0A AI M (A/T) 6 A D 6 Diode (Clutch Start) A (A/T) A + A 6(A), A 7() Air Injection Control Driver 8 D C 8 Clutch Start S Y (A/T) N Y (A/T) A E ATT DI EI EI 6 EA Y 6 EA EA 8 EA Y Y 7 A Y DD DD ark/neutral osition S A Air ump M A0 Air Switching alve Y EA 00 TYTA TACMA (ED6U) 0

3 Engine Control for T FE * : Shielded * : w/ SC * : w/o SC (A/T) 0 IA IA F Fuel Injector (No. ) E E E F 6 Fuel Injector (No. ) F 7 Fuel Injector (No. ) F 8 Fuel Injector (No. ) ADD Actuator Assembly C Camshaft Timing il Control alve (D) 8 D ME D ATT D IS 6 #0 #0 #0 #0 AI A AI A AIDI 0 FC D + D 8 E 0 THA Y Y Y (A/T) 0 D NS A C+ A C STA D Y D E (A), E (), E 7(C), E 8(D) Engine Control Module Y Y IH IA 6 H S (EA) M Mass Air Flow Meter E THA + E Y 0 IF A 8 A A A TYTA TACMA (ED6U)

4 From ower Source System (See age 7) 0A ETCS 0A TAI 0A I N. 0A ST 7 J C (*) (*) ower Steering il ressure S 6 IA A J (A), J () (*) DC DC (*) ST CT elay (*) (*) X A HT A AA+ A AA A HAA A NE NE+ 6 A A 7 A (*) I 7 I 7 H X HT + E A AA+ AA + HAA C Camshaft osition Sensor I 7 J 7 6 (*) (*) (*) S0 Stop amp S (*) (*) 6 C (*) DD D S 7 D +M D ES C ST E (A), E (), E 7(C), E 8(D) Engine Control Module (*) E Heated xygen Sensor (ank Sensor ) Air Fuel atio Sensor (ank Sensor ) (*) A A A (*) NE NE C Crankshaft osition Sensor ND 8 I EH 00 TYTA TACMA (ED6U) 0

5 Engine Control for T FE IT IF IF IT IF IT IF I I I I Ignition Coil Ignition Coil Ignition Coil Ignition Coil (No. ) (No. ) (No. ) (No. ) IT enerator M J 7 A IT 6 A IT A IT A IF A IT 0 A AT E (A), E (), E 7(C), E 8(D) Engine Control Module E A MM 6 D M D M D E 8 A TH A ID 6 MND ID I 8 ID ID 0 ID MT ND SND UT ID CC IH IH I 7 E Engine Coolant Temp. Sensor Y Canister Closed alve IF IF M ressure Sensor eak Detection ump Assembly I 0 00 TYTA TACMA (ED6U)

6 * : Shielded A Accelerator osition Sensor A A/C Amplifier ACT 7 AC 8 oltage Inverter UT A Airbag Sensor Assembly Center S EA A CA EA A C IA 6 Y IA Y IA 7 IA 8 IA IA II IJ IM 0 II 0 D EA 8 D A 6 D CA D EA D A 7 D C C ACT C AC 0 C ES C F/S E (A), E (), E 7(C), E 8(D) Engine Control Module AI C 8 A TA 0 A TA A M+ A M A E0 8 A KNK A EKNK 0 A I 7 A 8 Air ressure Sensor AI E C (*) 6 TA C TA M+ M M (*) EF EF E 6 IF IF IF IF T Throttle ody Assembly K Knock Control Sensor (ank ) I 6 00 TYTA TACMA (ED6U) 0

7 Engine Control for T FE From ower Source System (See age 7) 7. A D J (D), J0(E), J(F) Y D E D E ST lug F Y D DA 7 Y Y IA 8 C SD 7 C TC C C CANH CAN 6 6 CAN CANH TC AT E (A), E (), E 7(C), E 8(D) D Engine Control Module Data ink E0 7 A E0 6 A E0 E0 7 ME0 EC D TACH TH C C 0 C S TAC C J 7 E 7 A 6 E 8 A J EH E IE EH IC TYTA TACMA (ED6U)

8 From ower Source System (See age 7) 7. A AUE 7. A ECU 0A I J J C D 6 C K 7 F A Malfunction Indicator amp 7 Temp Control Tach Control 7 Speed Control 6 I+ SE SI Y Y (A/T) II A 8 A 6 IA IH 8 IH 6 Y Speed Sensor (Front H, H) A 8 S 8 A 0 F+ + 0 A A F 6 A 6 A 0 F+ + A 7 A (w/ SC) (w/o SC) F A (w/ SC) (w/o SC) Y C Combination Meter ehicle Speed Sensor (Combination Meter) 7 A Y J (A), J () S (A), () Skid Control ECU with Actuator J Speed Sensor (ear) IA 00 TYTA TACMA (ED6U) 07

9 Engine Control for T FE System utline The engine control system utilizes a microcomputer and maintains overall control of the engine, etc. An outline of engine control is given here.. Input Signals () Engine coolant temp. signal system The engine coolant temp. sensor detects the engine coolant temp. and has a built in thermistor with a resistance which varies according to the engine coolant temp. Thus the engine coolant temp. is input as a control signal to TEMINA TH of the engine control module. () Intake air temp. signal system The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal to TEMINA THA of the engine control module. () ower steering oil pressure signal system ower steering oil pressure is detected by the power steering oil pressure S and is input as a control signal to TEMINA S of the engine control module. () M signal system Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor. Camshaft position is input as a control signal to TEMINA of the engine control module, and engine M is input into TEMINA NE+. () Throttle signal system The throttle position sensor detects the throttle valve opening angle, which is input as a control signal to TEMINAS TA and TA of the engine control module. (6) ehicle speed signal system The vehicle speed is detected by the AS speed sensor and the signal is input to TEMINA SD of the engine control module via the comb. meter and the skid control ECU with actuator. (A/T) The vehicle speed is detected by the vehicle speed sensor installed in the transaxle and the signal is input to TEMINA SD of the engine control module via the comb. meter. (7) NS signal system (A/T) The ark/neutral position S detects whether the shift position is in neutral or not, and inputs a control signal to TEMINA NS of the engine control module. (8) A/C S signal system The operating voltage of the A/C S is detected and is input as a control signal to TEMINA AC of the engine control module. () attery signal system oltage is constantly applied to TEMINA ATT of the engine control module. hen the ignition S is turned to on, voltage for engine control module operation is applied via the EFI relay to TEMINA + of the engine control module. (0) Intake air volume signal system Intake air volume is detected by the mass air flow meter, and is input as a control signal to TEMINA of the engine control module. () STA signal system To confirm that the engine is cranking, the voltage applied to the starter motor during cranking is detected and is input as a control signal to TEMINA STA of the engine control module. () xygen sensor signal system The oxygen density in the exhaust gases is detected and is input as a control signal into TEMINA X of the engine control module. To maintain stable detection performance by the oxygen sensor, a heater is used for warming the sensor. The heater is also controlled by the engine control module (HT). () Engine knock signal system Engine knocking is detected by the knock sensor and input as a control signal to TEMINA KNK of the engine control module. () Electrical load signal system hen systems which cause a high electrical load such as the rear window defogger, taillight are turned on, a signal is input to TEMINAS ES and ES as a control signal. () Air fuel ratio signal circuit The air fuel ratio is detected and input as a control signal into TEMINA AA+ of the engine control module TYTA TACMA (ED6U)

10 . Control System SFI system The SFI system monitors the engine conditions through the signals, which are input from each sensor to the engine control module. ased on this data and the program memorized in the engine control module, the most appropriate fuel injection timing is decided and current is output to TEMINAS #0, #0, #0 and #0 of the engine control module, operating the injectors (to inject fuel). This is the system which finely controls the fuel injection in response to the driving conditions, through the engine control module. ESA system The ESA system monitors the engine conditions using the signals, which are input to the engine control module from each sensor. ased on this data and the program memorized in the engine control module, the most appropriate ignition timing is decided and current is output to TEMINAS IT, IT, IT and IT of the engine control module. This output controls the ignition coil and igniter No., No., No. and No. to produce the most appropriate ignition timing for the driving conditions. Knock control system Knock control system controls the gate based on the engine rotation speed and detects knocking by the peak value of the knock sensor output during the gate open period, and then controls it to the most suitable ignition timing in proportion to the driving condition. Evapoparge control system This system leads the vapor stuck to the canister to the serge tank in order not to agitate the air fuel by adjusting the fuel injection volume. The signal at this time will be output from TEMINA of the engine control module to S (EA).. Diagnosis System ith the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction system is recorded in the memory. The malfunctioning system can be found by reading the display (Code) of the malfunction indicator lamp.. Fail Safe System hen a malfunction occurs 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 the data (Standard values) recorded in the engine control module memory or else stops the engine. Service Hints EFI elay : Closed with the ignition S at N position E Engine Coolant Temp. Sensor : Approx..0 kω ( 0 C, F) : Approx.. kω (0 C, 68 F) : Approx. 0. kω (80 C, 76 F) : Approx. 0. kω (0 C, 0 F) E (A), E (), E7 (C), E8 (D) Engine Control Module ATT E : Always.0.0 volts +M E : Always.0.0 volts + E :.0.0 volts with the ignition S at N position C E :.. volts with the ignition S at N position TA E :.0. volts with the ignition S on and throttle valve fully closed :.7. volts with the ignition S on and throttle valve fully open TA E : 0..0 volts with the ignition S on and throttle valve fully closed :..8 volts with the ignition S on and throttle valve fully open A E : volts with the ignition S on and throttle valve fully closed :..8 volts with the ignition S on and throttle valve fully open A E :.8.7 volts with the ignition S on and throttle valve fully closed :.7. volts with the ignition S on and throttle valve fully open THA E : 0.. volts with the idling, intake air temp. 0 C ( F) 80 C (76 F) TH E : 0..0 volts with the idling, engine coolant temp. 60 C (0 F) 0 C (8 F) STA E : 6.0 volts or more with the engine cranking E :.0.0 volts with the idling and malfunction indicator lamp off SD E : ulse generation with the vehicle moving ST E : 7..0 volts with the brake pedal depressed 00 TYTA TACMA (ED6U) 0

11 Engine Control for T FE : arts ocation Code See age Code See age Code See age A (T FE) E8 D J F A6 A (T FE) F (T FE) J A7 (T FE) F6 (T FE) J A8 (T FE) F7 (T FE) J A (T FE) F8 (T FE) K (T FE) A0 (T FE) 6 (*) 6 (*) A F 8 (*) 8 (*) A (*) (*) A (T FE) M (T FE) C (T FE) H (T FE) (T FE) C (T FE) I (T FE) (T FE) C (T FE) I (T FE) A (T FE) S C8 I (T FE) (T FE) C I (T FE) S0 D I7 T (T FE) D6 J (T FE) E (T FE) J A (T FE) E A J 7 (*) 8 E J D 8 (*) E7 C J0 E : elay locks Code See age elay locks (elay lock ocation) Engine oom / (Engine Compartment eft) : lock and ire Harness Code See age lock and ire Harness ( ocation) C H 8 Engine oom Main ire and Driver Side J/ (ower Finish anel) I J K A Instrument anel ire and Driver Side J/ (ower Finish anel) Engine oom J/ (Engine Compartment eft) Engine ire and Engine oom J/ (Engine Compartment eft) C Engine oom Main ire and Engine oom J/ (Engine Compartment eft) DA D DC Instrument anel ire and Instrument anel J/ No. (eft Kick anel) DD A Engine oom Main ire and Instrument anel J/ No. (eft Kick anel) C 6 Engine ire and Instrument anel J/ No. (ight Side of love ox) D E F 6 Instrument anel ire and Instrument anel J/ No. (ight Side of love ox) * : Double Cab * : Access Cab * : egular Cab * : Separate Seat * : ench Seat 0 00 TYTA TACMA (ED6U)

12 : Joining ire Harness and ire Harness Code See age Joining ire Harness and ire Harness ( ocation) EA (T FE) Engine ire and Engine oom Main ire (Inside of Engine oom /) EF (T FE) Engine ire and Sensor ire (eft Side of Cylinder lock) IA 6 Instrument anel ire and Engine oom Main ire (eft Kick anel) I 6 Frame ire and Engine oom Main ire (eft Kick anel) ID 6 Frame ire and Instrument anel ire (eft Kick anel) IF 8 Engine ire and Engine ire (ehind the love ox) IH 8 Engine ire and Instrument anel ire (ight Side of love ox) II 8 Instrument anel ire and Instrument anel ire (Instrument anel race H) IJ 8 Instrument anel ire and Instrument anel ire (ight Kick anel) IM 8 Floor No. ire and Instrument anel ire (Under the Console ox) : round oints Code See age round oints ocation EA (T FE) Front ight Fender E (T FE) Front eft Fender E EH (T FE) ear Side of Cylinder lock IA 6 eft Kick anel IC 6 Instrument anel race H IE 6 ight Kick anel 60 (*) D 6 (*) 6 (*) : Splice oints Near the ear Differential Code See age ire Harness with Splice oints Code See age ire Harness with Splice oints E I (T FE) Engine oom Main ire E I6 8 Engine ire E I7 (T FE) Engine ire E * : Double Cab * : Access Cab * : egular Cab * : Separate Seat * : ench Seat 00 TYTA TACMA (ED6U)