Engine Electrical Devices: Removal & Installation Suzuki SX4 I рестайлинг

Engine Control Module (ECM) Removal and Installation

Note. For vehicle equipped with EVAP leak check system: If ECM is replaced with new one (VIN data is still not registered) or with used one (VIN data of other vehicle has been registered previously), make sure that re-register VIN data correctly by performing VIN Registration (EVAP Leak Check Model) . Otherwise, MIL remains on even after starting engine or it causes the inconsistency between registered VIN data in ECM and actual VIN. For vehicle equipped with immobilizer control system: If ECM is replaced with new one or with another one, make sure to register immobilizer transponder code to ECM correctly according to PROCEDURE AFTER ECM REPLACEMENT .

Scheme 21

Scheme 22

1. Remove battery, see «BATTERY REMOVAL AND INSTALLATION»(ref-514555-S09331958442012112100000) .
2. Disconnect connectors from ECM as follows. Push lock (1) to release locking of lock lever (2). Turn lock lever to arrow direction until it stops.
3. Remove battery tray with ECM.
4. Remove ECM (1) from battery tray by removing its mounting nuts (2).

Installation

Reverse removal procedure noting the following

Scheme 23

Scheme 24

Scheme 25

1. Connect connectors to ECM as follows. Make sure that lock lever of ECM connector is unlock position. Insert ECM connectors to ECM until it stops with unlocked lock lever. Lock ECM connectors securely by pulling its lock lever up.

Scheme 26

1. Connect SUZUKI scan tool to data link connector (DLC) (1) located on under side of instrument panel at driver's seat side Special Tool (A): SUZUKI scan tool (SUZUKI-SDT)
2. Check the VIN shown on the left side of instrument panel.
3. Turn ignition switch to ON position.
4. Select "VIN registration" under "Utility" menu of SUZUKI scan tool.
5. Register VIN according to the instructions indicated on the SUZUKI scan tool. NOTE: For details, refer to the operators manual for SUZUKI scan tool.
6. Before completed the VIN registration, check that VIN data indicated on the SUZUKI scan tool is correct. If not, re-register VIN data into ECM correctly.

Scheme 27

1. Connect SUZUKI scan tool to data link connector (DLC) (1) located on underside of instrument panel at driver's seat side. Special Tool (A): SUZUKI scan tool (SUZUKI-SDT)
2. Turn ignition switch to ON position.
3. Select "VIN registration" under "Utility" menu of SUZUKI scan tool.
4. Confirm whether code of 17 digits displayed on SUZUKI scan tool is corresponding to VIN shown on the left side of instrument panel. If displayed VIN does not correspond to instrument panel VIN, register VIN (vehicle identification number) data into ECM referring to «VIN REGISTRATION (EVAP LEAK CHECK MODEL)»(ref-514553-S18516075822012112100000) .

Accelerator Pedal Position (APP) Sensor Assembly Removal and Installation

Note. After replacing APP sensor assembly, perform calibration of throttle valve referring to ELECTRIC THROTTLE CONTROL SYSTEM CALIBRATION .

Removal

1. Disconnect negative cable at battery.
2. Disconnect connector from APP sensor assembly.
3. Remove APP sensor assembly from its bracket.

Reverse removal procedure for installation noting the following.

Scheme 28

1. Tighten APP sensor assembly upper nut (1) first and then lower nuts (2) to specified torque. Tightening torque APP sensor assembly nut (a): 6 N.m (0.6 kg-m, 4.5 lbf-ft)
2. Connect connector to APP sensor assembly securely.

Reference: ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION

Reverse removal procedure noting the following.

Scheme 29

1. Clean mating surfaces of ECT sensor and water outlet cap.
2. Check O-ring for damage and replace, if necessary.
3. Tighten ECT sensor (1) to specified torque. Tightening torque ECT sensor (a): 12.5 N.m (1.25 kg-m, 9.0 lbf-ft)
4. Connect connector to ECT sensor securely.
5. Refill coolant. See «COOLING SYSTEM REFILLING»(ref-514579-S08553899402012112100000) .

Air Fuel Ratio (A/F) Sensor Removal and Installation

Reference: AIR FUEL RATIO (A/F) SENSOR ON-VEHICLE INSPECTION

1. Disconnect negative cable at battery.
2. Remove condenser cooling fan. Automatic A/C model: See «CONDENSER COOLING FAN REMOVAL AND INSTALLATION»(ref-514569-S23888284222012112100000) Manual A/C model: See «CONDENSER COOLING FAN REMOVAL AND INSTALLATION»(ref-514570-S22985461842012112100000)
3. Remove exhaust manifold cover. See «EXHAUST MANIFOLD REMOVAL AND INSTALLATION»(ref-514571-S27114578642012112100000)
4. Disconnect A/F sensor connector.
5. Remove A/F sensor (1) from exhaust manifold.

Reverse removal procedure noting the following.

Scheme 30

1. Tighten A/F sensor (1) to specified torque. Tightening torque A/F sensor (a): 45 N.m (4.5 kg-m, 32.5 lbf-ft)

Scheme 31

1. Disconnect sensor connector.
2. Using ohmmeter, measure resistance of sensor heater between terminals "VB" and "GND" at sensor connector. If found faulty, replace HO2S. NOTE: Temperature of sensor affects resistance value largely. Make sure that sensor heater is at correct temperature. HO2S heater resistance 5.0 - 6.4 ohms at 20 °C (68 °F)
3. Connect sensor connector securely.

Heated Oxygen Sensor (HO2S) Removal and Installation

Reference: HEATED OXYGEN SENSOR (HO2S) HEATER ON-VEHICLE INSPECTION

1. Disconnect negative cable at battery.
2. Hoist vehicle.
3. Disconnect HO2S connector (1) and remove its bracket.
4. Remove exhaust No. 1 pipe (2). See «EXHAUST PIPE AND MUFFLER REMOVAL AND INSTALLATION»(ref-514571-S36168360652012112100000)
5. Remove HO2S (3) from exhaust No. 1 pipe.

Reverse removal procedure noting the following.

Scheme 32

1. Tighten HO2S (3) to specified torque. Tightening torque HO2S (a): 45 N.m (4.5 kg-m, 32.5 lbf-ft)

1. Disconnect negative cable at battery.
2. Remove air cleaner assembly. See «AIR CLEANER ASSEMBLY REMOVAL AND INSTALLATION»(ref-514568-S42483472292012112100000)
3. Disconnect connector from CMP sensor.
4. Remove camshaft position sensor from cylinder head.

Scheme 33

1. Install CMP sensor to cylinder head. Tightening torque CMP sensor bolt (a): 11 N.m (1.1 kg-m, 8.0 lbf-ft)
2. Connect connector to CMP sensor securely.
3. Install air cleaner case. See «AIR CLEANER ASSEMBLY REMOVAL AND INSTALLATION»(ref-514568-S42483472292012112100000)
4. Connect negative cable to battery.

1. Disconnect negative cable at battery.
2. Remove generator. See «GENERATOR REMOVAL AND INSTALLATION»(ref-514555-S30150571592012112100000)
3. Disconnect CKP sensor connector.
4. Remove CKP sensor (1) from cylinder block.

Reverse removal procedure noting the following.

Scheme 34

1. Apply engine oil to O-ring of sensor.
2. Tighten CKP sensor bolt to specified torque. Tightening torque CKP sensor bolt (a): 11 N.m (1.1 kg-m, 8.0 lbf-ft)
3. Connect connector and fix wire harness with clamp securely.

1. Disconnect negative cable from battery.
2. Hoist vehicle.
3. Disconnect knock sensor connector.
4. Remove knock sensor (1) from cylinder block.

Reference: KNOCK SENSOR INSPECTION

Reverse removal procedure noting the following.

Scheme 35

1. Install knock sensor (1) as shown in figure.
2. Tighten knock sensor bolt (2) to specified torque. Tightening torque Knock sensor bolt (a): 25 N.m (2.5 kg-m, 18.5 lbf-ft)

Mass Air Flow (MAF) & Intake Air Temperature (IAT) Sensor Removal and Installation

Reference: MASS AIR FLOW (MAF) & INTAKE AIR TEMPERATURE (IAT) SENSOR ON-VEHICLE INSPECTION

Scheme 36

1. Disconnect negative cable from battery.
2. Disconnect MAF & IAT sensor connector.
3. Remove MAF & IAT sensor (1) from air cleaner case.

Reference: MASS AIR FLOW (MAF) & INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION

Reverse removal procedure noting the following.

Scheme 37

1. Tighten MAF & IAT sensor screws to specified torque. Tightening torque MAF & IAT sensor screw (a): 1.2 N.m (0.12 kg-m, 0.9 lbf-ft)