Engine Control System Toyota Corolla IX рестайлинг

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1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY Check the operation. Connect the hand-held tester to the DLC3. Turn the ignition switch to ON. Turn the hand-held tester ON. Start the engine and warm it up. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1. Operate the OCV using the hand-held tester, then check the engine speed. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Operation Specified Condition OCV is OFF Normal engine speed OCV is ON Rough idling engine stall If the operation is not as specified, check the camshaft timing oil control valve, wire harness and ECM.
2. INSPECT THROTTLE BODY ASSY Listen to the throttle control motor operating sounds. Turn the ignition switch to ON. When pressing the accelerator pedal, listen to the running sounds of the motor. Make sure no friction noises come from the motor. If friction noises exist, check the throttle body, wire harness and ECM. Inspect the throttle position sensor. Connect the hand-held tester to the DLC3. (Scheme 1) Turn the ignition switch to ON. Turn the hand-held tester ON. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / THROTTLE POS. Depress the accelerator pedal. When the throttle valve is fully opened, check that the THROTTLE POS value is within the specified values. Standard: 60% or more NOTE: When checking the standard throttle valve opening percentage, the transmission should be in the neutral position. If the result is not as specified, check the throttle body, wire harness and ECM.
3. INSPECT ACCELERATOR PEDAL ASSY Check the voltage. Connect the hand-held tester to the DLC3. (Scheme 1) Turn the ignition switch to ON. Turn the hand-held tester ON. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / ACCEL POS #1, ACCEL POS #2. Operate the accelerator pedal, then check that the ACCEL POS #1 and ACCEL POS #2 values are within the specified values. ACCEL POS #1: PEDAL CONDITION AND SPECIFIED CONDITION SPECIFICATION Accelerator Pedal Condition Specified Condition Released 0.5 to 1.1V Depressed 2.6 to 4.5V ACCEL POS #2: PEDAL CONDITION AND SPECIFIED CONDITION SPECIFICATION Accelerator Pedal Condition Specified Condition Released 1.2 to 2.0 V Depressed 3.4 to 5.0 V If the result is not as specified, check the accelerator pedal, wire harness and ECM.

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1. INSPECT INTAKE AIR FLOW METER SUB-ASSY Check the operation. Apply battery voltage across terminals 1 (+B) and 2 (E2G). Using a voltmeter, connect the positive (+) tester prove to terminal 3 (VG) and the negative (-) tester prove to terminal 2 (E2G). Blow air into the mass air flow meter, then check that the voltage fluctuates. If the voltage does not fluctuate, replace the mass air flow meter. Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 4 (THA) -5 (E2) 13.6 to 18.4 kohms at-20°C (-4°F) 4 (THA) -5 (E2) 2.21 to 2.69 kohms at 20°C (68°F) 4 (THA) -5 (E2) 0.493 to 0.667 kohms at 60°C (140°F) If the result is not as specified, replace the mass air flow meter.
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (+B)-2 (GND) 6.9 to 7.9 kohms at 20°C (68°F) If the result is not as specified, replace the camshaft timing oil control valve. Check the operation. Apply battery voltage across the terminals, then check that the spool valve operates. NOTE: Check that the spool valve is not stuck. HINT: The spool valve may not return if foreign objects are caught in it. It may cause subtle pressure leakage to the advance side, and a DTC may be set.
3. INSPECT THROTTLE BODY ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (M-) -2 (M+) 0.3 to 100ohms at 20°C (68° F) 3 (E2) -5 (VC) 2.0 to 4.0 kohms at 20°C (68°F) If the result is not as specified, replace the throttle body.
4. INSPECT ACCELERATOR PEDAL ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 3(EP1)-6(VCP1) 1.5 to 6.0 kohms 1(EP2) -4 (VCP2) 1.5 to 6.0 kohms If the result is not as specified, replace the accelerator pedal.
5. INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (E2) -2 (THW) 2.32 to 2.59 kohms at 20°C (68°F) 1 (E2) -2 (THW) 0.310 to 0.326kohms at 80°C (176°F) NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. After checking, wipe water off the engine coolant temperature sensor. If the result is not as specified, replace the engine coolant temperature sensor.
6. INSPECT KNOCK SENSOR Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (Ground) -2 (Output) 120 to 280 kohms at 20°C (68°F) If the result is not specified, replace the knock sensor.
7. INSPECT E.F.I. CIRCUIT OPENING RELAY ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 3-5 10kohms or higher 3-5 Below 1 ohms (Apply battery voltage to terminal 1 and 2) If the result is not specified, replace the E.F.I, circuit opening relay assy.
8. INSPECT E.F.I ECU RELAY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 3-5 10kohms or higher 3-5 Below 1ohms (Apply battery voltage to terminal 1 and 2) If the result is not specified, replace the E.F.I ECU relay.

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1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. DRAIN ENGINE COOLANT (See «ENGINE COOLANT (1ZZ-FE)»(ref-225496-S15766401382006031900000) )
3. REMOVE CYLINDER HEAD COVER NO.2 Remove the 2 nuts and 2 clips, then remove the cylinder head cover No. 2.
4. REMOVE AIR CLEANER CAP SUB-ASSY Disconnect the mass air flow meter connector. Disconnect the VSV connector. Remove the 2 wire harness clamps. Disconnect the fuel vapor feed hose No. 1 from the VSV. Disconnect the fuel vapor feed hose No. 3 from the VSV. Disconnect the ventilation hose No. 1 from the cylinder head cover. Loosen the hose clamp bolt, then disconnect air cleaner hose No. 1. Remove the air cleaner cap together with the air cleaner hose.
5. REMOVE THROTTLE BODY ASSY Disconnect the throttle control motor connector. Disconnect the water by-pass hose from the throttle body. Disconnect the water by-pass hose No. 2 from the throttle body. Remove the 2 bolts and 2 nuts, then remove the throttle body. Remove the gasket from the intake manifold.
6. INSTALL THROTTLE BODY ASSY Install a new gasket onto the intake manifold. Install the throttle body with the 2 bolts and 2 nuts. Torque: 9.0 N.m (90 kgf.cm, 80 in..lbf) Connect the water by-pass hose No. 2 to the throttle body. Connect the water by-pass hose to the throttle body. Connect the throttle control motor connector.
7. INSTALL AIR CLEANER CAP SUB-ASSY Install the air cleaner cap together with the air cleaner hose. Tighten the hose clamp bolt, then connect the air cleaner hose. Torque: 2.0 N.m (20 kgf.cm, 18 in..lbf) Connect the ventilation hose No. 1 to the cylinder head cover. Connect the fuel vapor feed hose No. 3 to the VSV. Connect the fuel vapor feed hose No. 1 to the VSV. Install the 2 wire harness clamps. Connect the VSV connector. Connect the mass air flow meter connector.
8. CONNECT BATTERY NEGATIVE TERMINAL Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)
9. ADD ENGINE COOLANT (See «ENGINE COOLANT (1ZZ-FE)»(ref-225496-S15766401382006031900000) )
10. CHECK FOR ENGINE COOLANT LEAKAGE (See «COOLING SYSTEM (1ZZ-FE)»(ref-225496-S13063411032006031900000) )
11. INSTALL CYLINDER HEAD COVER NO.2 Install the cylinder head cover No. 2 with the 2 nuts and 2 clips. Torque: 7.0 N.m (71 kgf.cm, 62 in..lbf)

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1. INSPECT IDLE AIR CONTROL VALVE ASSY NOTE: Since the Idle Air Control Valve (IAC valve) has an internal IC circuit which converts the ECM duty signal into the drive signal, therefore its resistance value and valve operation are impossible to check with the actuator alone. Clear the DTC after inspection. HINT: DTC P0505 will be set when the valve is stuck. Check the operation. Connect the IAC valve connector to the IAC valve. Check the valve movement when the ignition switch is turned to ON. Movement: Half open --> fully close --> fully open --> half open HINT: The series of the valve movement mentioned above is done within 0.5 second.

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1. INSPECT INTAKE AIR FLOW METER SUB-ASSY Check the operation. Apply battery voltage across terminals 1 (+B) and 2 (E2G). Using a voltmeter, connect the positive (+) tester prove to terminal 3 (VG) and the negative (-) tester prove to terminal 2 (E2G). Blow air into the mass air flow meter, then check that the voltage fluctuates. If the voltage does not fluctuate, replace the mass air flow meter. Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 4 (THA) -5 (E2) 13.6 to 18.4 kohms at -20°C (-4°F) 4 (THA) -5 (E2) 2.21 to 2.69 kohms at 20°C (68°F) 4 (THA) -5 (E2) 0.493 to 0.667 kohms at 60°C (140°F) If the result is not as specified, replace the mass air flow meter.
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (+B) -2 (GND) 6.9 to 7.9 kohms at 20°C (68°F) If the result is not as specified, replace the camshaft timing oil control valve. Check the operation. Apply battery voltage across the terminals, then check that the spool valve operates. NOTE: Check that the spool valve is not stuck. HINT: The spool valve may not return if foreign objects are caught in the spool valve. It may cause subtle pressure leakage to the advance side, and a DTC may be set.
3. INSPECT THROTTLE BODY ASSY Check the throttle body. Check that the throttle valve shaft is not rickety. Check that all ports are not clogged. Check that the throttle valve opens and closes smoothly. Check that there is no clearance between the throttle stop screw and throttle lever at the throttle valve closed position. NOTE: Do not touch the throttle stop screw.
4. INSPECT E.F.I. THROTTLE POSITION SENSOR Check the resistance. Disconnect the throttle position sensor connector. Using an ohmmeter, measure the resistance between terminals VC and E2. Resistance: 2.5 to 6.0 kohms Check the resistance variation between terminals VTA and E2. Variation of resistance: The resistance value increases in proportion to the throttle lever opening value. HINT: THROTTLE VALVE MOVEMENT AND RESISTANCE SPECIFICATION Throttle Valve Movement Resistance Fully close 0.2 to 5.7kohms Fully open 2.0 to 10.2 kohms
5. INSPECT E.F.I. ENGINE COOLANT TEMPERATURE SENSOR Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (E2) -2 (THW) 2.32 to 2.59 kohms at 20°C (68°F) 1 (E2) -2 (THW) 0.310 to 0.326 kohms at 80°C (176°F) NOTE: If checking the engine coolant temperature sensor in water, be careful not to allow water to intrude into the terminals. After checking, wipe water off the engine coolant temperature sensor. If the result is not as specified, replace the engine coolant temperature sensor.
6. INSPECT KNOCK SENSOR Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 1 (Ground) -2 (Output) 120 to 280kohms at 20°C (68°F) If the result is not specified, replace the knock sensor.
7. INSPECT E.F.I. CIRCUIT OPENING RELAY ASSY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 3-5 10 kohms or higher 3-5 Below 1ohms (Apply battery voltage to terminal 1 and 2) If the result is not specified, replace the E.F.I, circuit opening relay assy.
8. INSPECT E.F.I ECU RELAY Check the resistance. Using an ohmmeter, measure the resistance between the terminals. Standard: TESTER CONNECTION AND SPECIFIED CONDITION SPECIFICATION Tester Connection Specified Condition 3-5 10 kohms or higher 3-5 Below 1ohms (Apply battery voltage to terminal 1 and 2) If the result is not specified, replace the E.F.I ECU relay.

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1. DRAIN ENGINE COOLANT (See «ENGINE COOLANT (2ZZ-GE)»(ref-225496-S38931962692006031900000) )
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE CYLINDER HEAD COVER NO.2 Remove the 3 bolts and nut, then remove the cylinder head cover No. 2.
4. SEPARATE ACCELERATOR CONTROL CABLE ASSY Remove the wire of the accelerator control cable from the accelerator control cable support No. 2. Loosen the nut. Remove the cable end from the throttle lever, then separate the accelerator control cable.
5. REMOVE AIR CLEANER CAP SUB-ASSY Disconnect the mass air flow meter connector. Disconnect the 2 VSV connectors. Remove the 2 wire harness clamps. Disconnect the fuel vapor feed hose No. 1 from the VSV. Disconnect the fuel vapor feed hose No. 3 from the VSV. Disconnect the 3 vacuum hoses. Loosen the air cleaner hose clamp bolt. Unlock the 2 clamp hooks. Remove the air cleaner cap together with the air cleaner hose.
6. REMOVE THROTTLE BODY ASSY Disconnect the throttle position sensor connector. Disconnect the ISC valve connector. Disconnect the ventilation hose. Disconnect the water by-pass hose No. 3. Disconnect the water by-pass hose No. 2. Remove the 2 bolts and 2 nuts, then remove the accelerator control cable bracket and throttle body. Remove the gasket from the intake manifold.
7. REMOVE E.F.I. THROTTLE POSITION SENSOR Remove the 2 screws, then remove the throttle position sensor.
8. REMOVE THROTTLE BODY IDLE AIR CONTROL VALVE ASSY Remove the 3 screws, then remove the throttle body idle air control valve assy. Remove the gasket from the throttle body.
9. INSTALL THROTTLE BODY IDLE AIR CONTROL VALVE ASSY Install a new gasket onto the throttle body. Install the throttle body idle air control valve assy with the 3 screws. Torque: 3.7 N.m (38 kgf.cm, 33 in.lbf)
10. INSTALL E.F.I. THROTTLE POSITION SENSOR Make sure that the throttle valve is fully closed. With the throttle position sensor rotated 30° to 45° counterclockwise about the fully-closed position of the throttle valve, install the throttle position sensor onto the throttle body. Turn the throttle position sensor clockwise, then secure it with the 2 screws. Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf)
11. INSTALL THROTTLE BODY ASSY Install a new gasket onto the intake manifold. Install the throttle body and accelerator control cable bracket with the 2 bolts and 2 nuts. Torque: 22 N.m (224 kgf.cm, 16 ft.lbf)
12. INSTALL AIR CLEANER CAP SUB-ASSY Install the air cleaner cap together with the air cleaner hose. Lock the 2 clamp hooks. Tighten the air cleaner hose clamp bolt. Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf) Connect the 3 vacuum hoses. Connect the fuel vapor feed hose No. 3 to the VSV. Connect the fuel vapor feed hose No. 1 to the VSV. Install the 2 wire harness clamps Connect the 2 VSV connectors. Connect the mass air flow meter connector.
13. INSTALL ACCELERATOR CONTROL CABLE ASSY Install the accelerator control cable into the throttle lever. Tighten the nut. Install the accelerator control cable onto the accelerator control cable support No. 2.
14. CONNECT BATTERY NEGATIVE TERMINAL Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)
15. ADD ENGINE COOLANT (See «ENGINE COOLANT (2ZZ-GE)»(ref-225496-S38931962692006031900000) )
16. CHECK FOR ENGINE COOLANT LEAKAGE (See «COOLING SYSTEM (2ZZ-GE)»(ref-225496-S27954524102006031900000) )
17. INSTALL CYLINDER HEAD COVER NO.2 Install the cylinder head cover No. 2 with the 3 bolts and nut. Torque: 7.0 N.m (71 kgf.cm, 62 in..lbf)

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1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE ACCELERATOR PEDAL ASSY Disconnect the accelerator position sensor connector. Remove the 2 bolts, then remove the accelerator pedal.
3. INSTALL ACCELERATOR PEDAL ASSY Install the accelerator pedal with the 2 bolts. Torque: 5.4 N.m (55 kgf.cm, 48 In. lbf) Connect the accelerator position sensor connector.
4. CONNECT BATTERY NEGATIVE TERMINAL Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)

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1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE GLOVE COMPARTMENT DOOR ASSY Remove the screw from the glove compartment door stoppers. Deform the upper part of the glove compartment door assy to release the stoppers. Pull the glove compartment door assy upward to remove it.
3. REMOVE ECM Remove the 2 clips using a clip remover, then open the cover. Disconnect the 4 ECM connectors. Remove the wire harness from the wire harness clamp. Remove the 2 screws. Unfasten the claw and clip, then remove the ECM.
4. REMOVE ECM COVER Remove the ECM cover from the ECM.
5. REMOVE ECM BRACKET (DELCO MADE) Remove the 4 screws, then remove the ECM bracket.
6. REMOVE ECM BRACKET (DENSO MADE) Remove the 2 screws, then remove the ECM bracket.
7. REMOVE ECM BRACKET NO. 2 (DENSO MADE) Remove the 2 screws, then remove the ECM bracket No. 2.
8. REMOVE ECM BRACKET NO. 3 (DENSO MADE) Remove the 2 screws, then remove the ECM bracket No. 3.
9. INSTALL ECM BRACKET NO.3 (DENSO MADE) Install the ECM bracket No. 3 with the 2 screws. Torque: 3.2 N.m (33 kgf.cm, 28 in..lbf)
10. INSTALL ECM BRACKET NO.2 (DENSO MADE) Install the ECM bracket No. 2 with the 2 screws. Torque: 3.2 N.m (33 kgf.cm, 28 in..lbf)
11. INSTALL ECM BRACKET (DENSO MADE) Install the ECM bracket with the 2 screws. Torque: 3.2 N.m (33 kgf.cm, 28 in..lbf)
12. INSTALL ECM BRACKET (DELCO MADE) Install the ECM bracket with the 4 screws. Torque: 3.2 N.m (33 kgf.cm, 28 in..lbf)
13. INSTALL ECM COVER Install a new ECM cover onto the ECM as shown in the illustration.
14. INSTALL ECM Install the ECM with the 2 screws. Torque: 3.0 N.m (31 kgf.cm, 27 in..lbf) Connect the 4 ECM connectors. Install the wire harness clamp. Install the cover with the 2 clips.
15. INSTALL GLOVE COMPARTMENT DOOR ASSY
16. CONNECT BATTERY NEGATIVE TERMINAL Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)
17. REGISTRATION VIN HINT: 1ZZ-FE (See «REGISTRATION»(/toyota/corolla/ix-2003-2007/remont/testing-diagnostics/#engine-control-system-sfi-1zz-fe-diagnostics) ) 2ZZ-GE (See «REGISTRATION»(/toyota/corolla/ix-2003-2007/remont/testing-diagnostics/#engine-control-system-sfi-2zz-ge-diagnostics) )

See also:
• REGISTRATION
• REGISTRATION