Engine Control System (1NZ-FXE) (Service Information): Removal & Installation Toyota Prius C I facelift

INSTALLATION [12/2013 - ]

1. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Apply a light coat of engine oil to a new O-ring and install it onto the camshaft timing oil control valve assembly. TEXT IN ILLUSTRATION *1 O-ring NOTE: Do not twist the O-ring. Install the camshaft timing oil control valve assembly and wire harness bracket with the bolt. Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf) Connect the camshaft timing oil control valve assembly connector.
2. INSPECT FOR OIL LEAK
3. INSTALL AIR CLEANER CASE SUB-ASSEMBLY . Refer to «INSTALLATION [12/2013 - ] - Step 2»(ref-651302-S16528756812014081900000)
4. INSTALL AIR CLEANER CAP SUB-ASSEMBLY See step 2

Scheme 183

Scheme 184

1. INSTALL MASS AIR FLOW METER Install the mass air flow meter with the 2 screws. NOTE: Make sure that the O-ring is not cracked or does not jump out of position during installation. HINT: Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly. Refer to «INITIALIZATION [12/2013 - ]»(ref-651185-S28288611502014081900000) . Connect the mass air flow meter connector.

Scheme 185

Scheme 186

1. REMOVE CAM POSITION SENSOR Disconnect the cam position sensor connector. Remove the bolt and cam position sensor.

1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR Install a new gasket to the engine coolant temperature sensor. Using a union nut wrench 19 mm, install the engine coolant temperature sensor. Torque: 20 N*m (200 kgf*cm, 14 ft.*lbf) NOTE: Use the torque value compensation formula to calculate the torque value for use when a torque wrench is combined with a tool such as a union nut wrench. Refer to «PRECAUTION [12/2013 - ]»(ref-651169-S11524377852014081900000) . HINT: Perform "Inspection After Repair" after replacing the engine coolant temperature sensor. Refer to «INITIALIZATION [12/2013 - ]»(ref-651185-S28288611502014081900000) . Connect the engine coolant temperature sensor connector. Connect the wire harness.
2. ADD COOLANT (for Engine) . Refer to «REPLACEMENT [12/2013 - ] - Step 2»(ref-651299-S29553327062014081900000)
3. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION [12/2013 - ] - Step 1»(ref-651318-S01150576392014081900000)
4. INSTALL INVERTER WITH CONVERTER ASSEMBLY Refer to «INSTALLATION [12/2013 - ]»(ref-651170-S07777432982014081900000) .

Scheme 187

Scheme 188

1. REMOVE INTAKE MANIFOLD Refer to «REMOVAL [12/2013 - ]»(ref-651317-S23816079192014081900000)
2. REMOVE KNOCK CONTROL SENSOR Disconnect the knock control sensor connector. Remove the bolt and remove the knock control sensor.

Scheme 189

1. INSPECT KNOCK CONTROL SENSOR TEXT IN ILLUSTRATION *1 Ohmmeter Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 120 to 280 kohms If the result is not as specified, replace the knock control sensor.

Scheme 190

1. INSTALL KNOCK CONTROL SENSOR Install the knock control sensor with the bolt as shown in the illustration. TEXT IN ILLUSTRATION *a Front of Engine *b 10° *c 30° Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) NOTE: Make sure that the knock control sensor is in the correct position. HINT: Perform "Inspection After Repair" after replacing the knock control sensor. Refer to «INITIALIZATION [12/2013 - ]»(ref-651185-S28288611502014081900000) . Connect the knock control sensor connector.
2. INSTALL INTAKE MANIFOLD Refer to «INSTALLATION [12/2013 - ]»(ref-651317-S15605022992014081900000)

Scheme 191

Scheme 192

Scheme 193

1. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY Refer to «REMOVAL [12/2013 - ]»(ref-651323-S38127705822014081900000) .
2. REMOVE INNER COWL TOP TO COWL BRACE . Refer to «REMOVAL [12/2013 - ] - Step 4»(ref-651294-S22839014222014081900000)
3. REMOVE FRONT AIR SHUTTER SEAL . Refer to «REMOVAL [12/2013 - ] - Step 5»(ref-651294-S22839014222014081900000)
4. REMOVE FRONT NO. 1 VENTILATOR SEAL . Refer to «REMOVAL [12/2013 - ] - Step 6»(ref-651294-S22839014222014081900000)
5. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY . Refer to «REMOVAL [12/2013 - ] - Step 7»(ref-651294-S22839014222014081900000)
6. REMOVE AIR FUEL RATIO SENSOR Disconnect the air fuel ratio sensor connector and 2 clamps. Using SST, remove the air fuel ratio sensor. SST: 09224-00010

Scheme 194

1. INSPECT AIR FUEL RATIO SENSOR Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component without harness connected (Air Fuel Ratio Sensor) Standard Resistance Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 ohms 1 (HA1A) - 4 (A1A-) - 10 kohms or higher If the result is not as specified, replace the air fuel ratio sensor.

Scheme 195

1. INSTALL AIR FUEL RATIO SENSOR Using SST, install the air fuel ratio sensor. TEXT IN ILLUSTRATION *a Fulcrum Length 30 mm (1.18 in.) *b Fulcrum Length 260 mm (10.2 in.) SST: 09224-00010 without SST Torque: 44 N*m (449 kgf*cm, 32 ft.*lbf) with SST Torque: 39 N*m (398 kgf*cm, 29 ft.*lbf) NOTE: The "with SST" torque value is effective when using SST with a fulcrum length of 30 mm (1.18 in.) and a torque wrench with a fulcrum length of 260 mm (10.2 in.). Refer to «PRECAUTION [12/2013 - ]»(ref-651169-S11524377852014081900000) . The "with SST" torque value is effective when SST is parallel to the torque wrench. HINT: Perform "Inspection After Repair" after replacing the air fuel ratio sensor. Refer to «INITIALIZATION [12/2013 - ]»(ref-651185-S28288611502014081900000) . Connect the air fuel ratio sensor connector and 2 clamps.
2. INSTALL OUTER COWL TOP PANEL SUB-ASSEMBLY . Refer to «INSTALLATION [12/2013 - ] - Step 16»(ref-651294-S26259503072014081900000)
3. INSTALL FRONT NO. 1 VENTILATOR SEAL . Refer to «INSTALLATION [12/2013 - ] - Step 17»(ref-651294-S26259503072014081900000)
4. INSTALL FRONT AIR SHUTTER SEAL . Refer to «INSTALLATION [12/2013 - ] - Step 18»(ref-651294-S26259503072014081900000)
5. INSTALL INNER COWL TOP TO COWL BRACE . Refer to «INSTALLATION [12/2013 - ] - Step 19»(ref-651294-S26259503072014081900000)
6. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY Refer to «INSTALLATION [12/2013 - ]»(ref-651323-S30110522922014081900000) .

Scheme 196

Scheme 197

1. REMOVE EXHAUST MANIFOLD Refer to «REMOVAL [12/2013 - ]»(ref-651317-S34743408212014081900000) .
2. REMOVE HEATED OXYGEN SENSOR Using SST, remove the heated oxygen sensor. SST: 09224-00010

Scheme 198

1. INSPECT HEATED OXYGEN SENSOR TEXT IN ILLUSTRATION *a Component without harness connected (Heated Oxygen Sensor) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (HT1B) - 2 (+B) 20°C (68°F) 11 to 16 ohms 1 (HT1B) - 4 (E2) - 10 kohms or higher If the result is not as specified, replace the heated oxygen sensor.

Scheme 199

1. INSTALL HEATED OXYGEN SENSOR Using SST, install the heated oxygen sensor onto the front exhaust pipe. TEXT IN ILLUSTRATION *a Fulcrum Length 30 mm (1.18 in.) *b Fulcrum Length 260 mm (10.2 in.) SST: 09224-00010 without SST Torque: 44 N*m (449 kgf*cm, 32 ft.*lbf) with SST Torque: 39 N*m (398 kgf*cm, 29 ft.*lbf) NOTE: The "with SST" torque value is effective when using SST with a fulcrum length of 30 mm (1.18 in.) and a torque wrench with a fulcrum length of 260 mm (10.2 in.). Refer to «PRECAUTION [12/2013 - ]»(ref-651169-S11524377852014081900000) . The "with SST" torque value is effective when SST is parallel to the torque wrench. HINT: Perform "Inspection After Repair" after replacing the heated oxygen sensor. Refer to «INITIALIZATION [12/2013 - ]»(ref-651185-S28288611502014081900000) .
2. INSTALL EXHAUST MANIFOLD Refer to «INSTALLATION [12/2013 - ]»(ref-651317-S39559015482014081900000)

Scheme 200

Scheme 201

Scheme 202

1. REMOVE NO. 1 RELAY BLOCK COVER
2. REMOVE NO. 1 INTEGRATION RELAY Using a screwdriver with its tip wrapped in protective tape, disengage the 2 claws and disconnect the No. 1 integration relay. Disconnect the 3 connectors and remove the No. 1 integration relay.

Scheme 203

Scheme 204

1. INSPECT NO. 1 INTEGRATION RELAY TEXT IN ILLUSTRATION *1 No. 1 Integration Relay - - EFI-MAIN Relay: Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 No. 1 Integration Relay Standard Resistance Tester Connection Condition Specified Condition No. 1 Integration relay (2E-1) - No. 1 Integration relay (2C-4) Auxiliary battery voltage is not applied between terminals 2C-3 and 2C-2 10 kohms or higher No. 1 Integration relay (2E-1) - No. 1 Integration relay (2C-4) Auxiliary battery voltage is applied between terminals 2C-3 and 2C-2 Below 1 ohms If the resistance is not as specified, replace the No. 1 integration relay. HORN Relay: Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 No. 1 Integration Relay Standard Resistance Tester Connection Condition Specified Condition No. 1 Integration relay (2E-1) - No. 1 Integration relay (2C-8) Auxiliary battery voltage is not applied between terminals 2C-6 and 2C-7 10 kohms or higher No. 1 Integration relay (2E-1) - No. 1 Integration relay (2C-8) Auxiliary battery voltage is applied between terminals 2C-6 and 2C-7 Below 1 ohms If the resistance is not as specified, replace the No. 1 integration relay. IG2 Relay: Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 No. 1 Integration Relay Standard Resistance Tester Connection Condition Specified Condition No. 1 Integration relay (2E-1) - No. 1 Integration relay (2D-4) Auxiliary battery voltage is not applied between terminals 2D-2 and 2D-3 10 kohms or higher No. 1 Integration relay (2E-1) - No. 1 Integration relay (2D-4) Auxiliary battery voltage is applied between terminals 2D-2 and 2D-3 Below 1 ohms If the resistance is not as specified, replace the No. 1 integration relay. C/OPN Relay: Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 No. 1 Integration Relay Standard Resistance Tester Connection Condition Specified Condition No. 1 Integration relay (2D-5) - No. 1 Integration relay (2D-8) Auxiliary battery voltage is not applied between terminals 2D-6 and 2D-7 10 kohms or higher No. 1 Integration relay (2D-5) - No. 1 Integration relay (2D-8) Auxiliary battery voltage is applied between terminals 2D-6 and 2D-7 Below 1 ohms If the resistance is not as specified, replace the No. 1 integration relay.

1. INSTALL NO. 1 INTEGRATION RELAY Connect the 3 connectors. Install the No. 1 integration relay to the engine room relay block.
2. INSTALL NO. 1 RELAY BLOCK COVER