RM38N0EC _51 Engine / Hybrid System _111785 M20C-FKS, M20D-FKS ENGINE CONTROL _0504416 SFI SYSTEM J

M20C-FKS, M20D-FKS ENGINE CONTROL  SFI SYSTEM  VC Output Circuit  


DESCRIPTION

The ECM constantly generates a 5 V power source voltage from the battery voltage supplied to the +B, +B2 (BATT) terminals to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit.

A577874E01
1.313,0.833 3.125,1.135 1.813,0.302 10 false from EFI NO. 1 Fuse 0.917,1.177 2.677,1.531 1.76,0.354 10 false from EFI-MAIN NO. 1 Relay 0.271,1.823 2.76,2.323 2.49,0.5 10 false to Throttle Position Sensor, Accelerator Pedal Sensor Assembly, etc. (Sensors which have an IC) 0.292,2.781 2.719,3.167 2.427,0.385 10 false to Engine Coolant Temperature Sensor, Intake Air Temperature Sensor, etc. 4.969,3.094 5.313,3.406 0.344,0.313 10 false ECM 2.885,0.677 3.563,1 0.677,0.323 10 false BATT 2.823,1.042 3.49,1.292 0.667,0.25 10 false +B, +B2 3.063,2.021 3.427,2.25 0.365,0.229 10 false VC 4.396,0.875 6.188,1.229 1.792,0.354 10 false 5 V Constant Voltage Circuit 5.365,1.76 6.354,2.115 0.99,0.354 10 false Microprocessor 4.073,2.844 4.333,3.063 0.26,0.219 10 false R

When the VC circuit has a short circuit, the microprocessor in the ECM and sensors that are supplied power through the VC circuit are deactivated because power is not supplied from the VC circuit. When the system is in this condition, it will not start.

WIRING DIAGRAM

·

For the circuit diagram of the ECM power source refer to the ECM power source circuit.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>ECM Power Source Circuit

·

VC Output Circuit

A425734E36
0.542,0.354 0.854,0.552 0.313,0.198 10 false C57 0.552,0.542 2.073,0.927 1.521,0.385 10 false Throttle Body with Motor Assembly 0.531,1.854 0.844,2.052 0.313,0.198 10 false B22 0.521,2.021 2.302,2.24 1.781,0.219 10 false Crankshaft Position Sensor 0.521,3.146 0.833,3.344 0.313,0.198 10 false C51 0.531,3.333 2.146,3.719 1.615,0.385 10 false Camshaft Position Sensor (for Intake Camshaft) 0.521,4.448 0.833,4.646 0.313,0.198 10 false C52 0.521,4.635 2.135,5.021 1.615,0.385 10 false Camshaft Position Sensor (for Exhaust Camshaft) 0.521,5.688 0.854,5.885 0.333,0.198 10 false C59 0.521,5.865 2.229,6.229 1.708,0.365 10 false Manifold Absolute Pressure Sensor 0.542,7.073 0.844,7.25 0.302,0.177 10 false C49 0.552,7.24 2.094,7.792 1.542,0.552 10 false Engine Oil Pressure and Temperature Sensor 2.531,0.281 2.781,0.448 0.25,0.167 10 false VC 2.552,0.646 2.771,0.823 0.219,0.177 10 false E2 2.458,1 2.781,1.188 0.323,0.188 10 false VTA 2.396,1.385 2.771,1.563 0.375,0.177 10 false VTA2 2.865,0.531 3.115,0.698 0.25,0.167 10 false 4 2.865,0.177 3.115,0.344 0.25,0.167 10 false 2 2.875,0.906 3.125,1.073 0.25,0.167 10 false 1 2.865,1.26 3.115,1.427 0.25,0.167 10 false 3 2.875,1.781 3.125,1.948 0.25,0.167 10 false 3 2.875,2.146 3.125,2.313 0.25,0.167 10 false 2 2.865,2.521 3.115,2.688 0.25,0.167 10 false 1 2.875,3.052 3.125,3.219 0.25,0.167 10 false 3 2.865,3.417 3.115,3.583 0.25,0.167 10 false 2 2.865,3.76 3.115,3.927 0.25,0.167 10 false 1 2.865,4.729 3.115,4.896 0.25,0.167 10 false 2 2.865,5.073 3.115,5.24 0.25,0.167 10 false 1 2.875,4.354 3.125,4.521 0.25,0.167 10 false 3 2.854,5.646 3.104,5.813 0.25,0.167 10 false 3 2.854,6.021 3.104,6.188 0.25,0.167 10 false 1 2.844,6.375 3.094,6.542 0.25,0.167 10 false 2 2.854,6.969 3.104,7.135 0.25,0.167 10 false 3 2.854,7.313 3.104,7.479 0.25,0.167 10 false 2 2.865,7.708 3.115,7.875 0.25,0.167 10 false 1 2.865,8.094 3.115,8.26 0.25,0.167 10 false 4 2.344,1.885 2.76,2.063 0.417,0.177 10 false VCNE 2.458,2.229 2.75,2.406 0.292,0.177 10 false NE- 2.448,2.604 2.76,2.781 0.313,0.177 10 false NE+ 2.51,3.125 2.76,3.292 0.25,0.167 10 false VC 2.427,3.51 2.75,3.698 0.323,0.188 10 false VVI- 2.438,3.865 2.76,4.052 0.323,0.188 10 false VVI+ 2.448,4.469 2.76,4.646 0.313,0.177 10 false VC2 2.365,4.823 2.75,5.01 0.385,0.188 10 false VVE- 2.344,5.188 2.844,5.375 0.5,0.188 10 false VVE+ 2.521,5.76 2.771,5.927 0.25,0.167 10 false VC 2.542,6.125 2.76,6.302 0.219,0.177 10 false E2 2.469,6.479 2.75,6.656 0.281,0.177 10 false PIM 2.49,7.083 2.74,7.25 0.25,0.167 10 false VC 2.417,7.438 2.781,7.635 0.365,0.198 10 false GND 2.375,7.813 2.781,8.021 0.406,0.208 10 false POUT 2.375,8.208 2.76,8.396 0.385,0.188 10 false TOUT 4.969,0.177 5.49,0.479 0.521,0.302 10 false 158 4.969,0.531 5.427,0.917 0.458,0.385 10 false 157 4.969,0.906 5.469,1.281 0.5,0.375 10 false 159 4.969,1.26 5.385,1.615 0.417,0.354 10 false 127 4.958,1.771 5.229,1.938 0.271,0.167 10 false 129 5,2.135 5.271,2.302 0.271,0.167 10 false 99 4.958,2.51 5.323,2.844 0.365,0.333 10 false 133 4.958,3.052 5.458,3.521 0.5,0.469 10 false 160 4.958,3.417 5.479,3.896 0.521,0.479 10 false 161 4.958,3.781 5.573,4.375 0.615,0.594 10 false 162 4.958,4.354 5.417,4.719 0.458,0.365 10 false 130 4.958,4.729 5.333,5 0.375,0.271 10 false 131 4.969,5.094 5.438,5.667 0.469,0.573 10 false 132 4.938,5.635 5.208,5.802 0.271,0.167 10 false 144 4.938,6 5.208,6.167 0.271,0.167 10 false 143 4.927,6.375 5.198,6.542 0.271,0.167 10 false 173 4.969,6.969 5.26,7.24 0.292,0.271 10 false 146 4.958,7.344 5.365,7.615 0.406,0.271 10 false 145 4.958,7.708 5.417,8.01 0.458,0.302 10 false 175 4.958,8.104 5.448,8.427 0.49,0.323 10 false 176 5.5,8.656 5.875,8.833 0.375,0.177 10 false C115 5.885,8.656 6.229,8.833 0.344,0.177 10 false ECM 6.271,0.146 6.542,0.313 0.271,0.167 10 false 5 V 5.302,0.167 5.708,0.344 0.406,0.177 10 false VCTA 5.281,0.521 5.604,0.698 0.323,0.177 10 false ETA 5.281,1.021 5.667,1.208 0.385,0.188 10 false VTA1 5.281,1.375 5.667,1.563 0.385,0.188 10 false VTA2 5.281,1.771 5.708,1.948 0.427,0.177 10 false VCNE 5.271,2.125 5.583,2.302 0.313,0.177 10 false NE- 5.271,2.625 5.583,2.802 0.313,0.177 10 false NE+ 5.281,3.042 5.708,3.219 0.427,0.177 10 false VCV1 5.281,3.406 5.708,3.583 0.427,0.177 10 false VV1- 5.292,3.896 5.719,4.073 0.427,0.177 10 false VV1+ 5.271,4.354 5.698,4.531 0.427,0.177 10 false VCE1 5.281,4.719 5.708,4.896 0.427,0.177 10 false EV1- 5.281,5.198 5.708,5.375 0.427,0.177 10 false EV1+ 5.281,5.625 5.74,5.813 0.458,0.188 10 false VCPM 5.281,6.01 5.698,6.188 0.417,0.177 10 false EPIM 5.281,6.479 5.604,6.667 0.323,0.188 10 false PIM 5.281,6.948 5.719,7.135 0.438,0.188 10 false VCPE 5.271,7.313 5.708,7.5 0.438,0.188 10 false EPEO 5.292,7.823 5.646,8.01 0.354,0.188 10 false PEO 5.281,8.219 5.729,8.406 0.448,0.188 10 false THEO

A538673E01
0.604,0.927 2.198,1.333 1.594,0.406 10 false Accelerator Pedal Sensor Assembly 0.604,0.76 2.219,1.156 1.615,0.396 10 false A24 0.604,3.219 1.938,3.615 1.333,0.396 10 false Mass Air Flow Meter Sub-assembly 0.594,3.052 2.208,3.448 1.615,0.396 10 false C18 0.594,4.729 2.198,5.135 1.604,0.406 10 false Fuel Pressure Sensor (for High Pressure Side) 0.583,4.563 2.198,4.958 1.615,0.396 10 false B20 0.573,5.948 2.438,6.552 1.865,0.604 10 false No. 2 Fuel Pressure Sensor (for Low Pressure Side) 0.573,5.781 2.188,6.177 1.615,0.396 10 false B15 0.573,7.313 1.729,7.677 1.156,0.365 10 false Canister Pressure Sensor 0.594,7.146 2.208,7.542 1.615,0.396 10 false L47 2.365,0.625 3.979,1.021 1.615,0.396 10 false VCPA 2.385,0.979 4,1.375 1.615,0.396 10 false VCP2 2.448,1.344 4.063,1.74 1.615,0.396 10 false EPA 2.385,1.708 4,2.104 1.615,0.396 10 false EPA2 2.448,2.083 4.063,2.479 1.615,0.396 10 false VPA 2.396,2.438 4.01,2.833 1.615,0.396 10 false VPA2 2.448,3.021 2.802,3.219 0.354,0.198 10 false VCC 2.479,3.385 4.094,3.781 1.615,0.396 10 false E2G 2.542,3.729 2.792,3.917 0.25,0.188 10 false FG 2.5,4.083 4.115,4.479 1.615,0.396 10 false THA 2.552,4.563 4.167,4.958 1.615,0.396 10 false VC 2.563,4.927 4.177,5.323 1.615,0.396 10 false E2 2.563,5.281 4.177,5.677 1.615,0.396 10 false PR 2.563,5.833 4.177,6.229 1.615,0.396 10 false VC 2.583,6.177 4.198,6.573 1.615,0.396 10 false E2 2.5,6.531 4.115,6.927 1.615,0.396 10 false PFL 2.469,7.073 4.083,7.469 1.615,0.396 10 false VCC 2.375,7.438 3.99,7.833 1.615,0.396 10 false SGND 2.385,7.813 4,8.208 1.615,0.396 10 false VOUT 2.865,0.51 4.479,0.906 1.615,0.396 10 false 4 2.854,0.875 4.469,1.271 1.615,0.396 10 false 1 2.854,1.25 4.469,1.646 1.615,0.396 10 false 5 2.865,1.604 4.479,2 1.615,0.396 10 false 2 2.865,1.979 4.479,2.375 1.615,0.396 10 false 6 2.865,2.333 4.479,2.729 1.615,0.396 10 false 3 2.875,2.896 4.49,3.292 1.615,0.396 10 false 3 2.875,3.271 4.49,3.667 1.615,0.396 10 false 2 2.875,3.635 4.49,4.031 1.615,0.396 10 false 1 2.875,4 4.49,4.396 1.615,0.396 10 false 4 2.865,4.448 4.479,4.844 1.615,0.396 10 false 1 2.875,4.802 4.49,5.198 1.615,0.396 10 false 2 2.875,5.167 4.49,5.563 1.615,0.396 10 false 3 2.875,5.698 4.49,6.094 1.615,0.396 10 false 1 2.875,6.063 4.49,6.458 1.615,0.396 10 false 3 2.885,6.427 4.5,6.823 1.615,0.396 10 false 2 2.875,6.969 4.49,7.365 1.615,0.396 10 false 6 2.875,7.333 4.49,7.729 1.615,0.396 10 false 8 2.875,7.688 4.49,8.083 1.615,0.396 10 false 7 4.885,3.01 5.229,3.177 0.344,0.167 10 false C115 4.969,0.438 5.698,0.865 0.729,0.427 10 false 87 4.958,0.813 5.688,1.24 0.729,0.427 10 false 90 4.958,1.177 5.688,1.604 0.729,0.427 10 false 86 4.958,1.531 5.688,1.958 0.729,0.427 10 false 89 4.958,1.906 5.688,2.333 0.729,0.427 10 false 85 4.958,2.26 5.688,2.688 0.729,0.427 10 false 88 4.927,2.833 5.656,3.26 0.729,0.427 10 false 137 4.927,3.208 5.656,3.635 0.729,0.427 10 false 136 4.927,3.563 5.656,3.99 0.729,0.427 10 false 135 4.927,3.927 5.656,4.354 0.729,0.427 10 false 165 4.917,4.365 5.646,4.792 0.729,0.427 10 false 179 4.917,4.75 5.646,5.177 0.729,0.427 10 false 178 4.917,5.115 5.646,5.542 0.729,0.427 10 false 177 4.927,5.635 5.656,6.063 0.729,0.427 10 false 147 4.938,6 5.667,6.427 0.729,0.427 10 false 148 4.927,6.365 5.656,6.792 0.729,0.427 10 false 149 4.969,6.885 5.698,7.313 0.729,0.427 10 false 72 4.969,7.26 5.698,7.688 0.729,0.427 10 false 71 4.958,7.625 5.688,8.052 0.729,0.427 10 false 73 5.813,8.458 6.635,8.781 0.823,0.323 10 false ECM 5.323,0.51 5.969,0.885 0.646,0.375 10 false VCPA 5.313,0.885 6.094,1.177 0.781,0.292 10 false VCP2 5.313,1.25 6.094,1.542 0.781,0.292 10 false EPA 5.313,1.615 6.094,1.906 0.781,0.292 10 false EPA2 5.323,2.073 6.104,2.365 0.781,0.292 10 false VPA 5.323,2.448 6.104,2.74 0.781,0.292 10 false VPA2 5.323,2.906 6.104,3.198 0.781,0.292 10 false VCVG 5.323,3.271 6.104,3.563 0.781,0.292 10 false E2G 5.323,3.74 6.104,4.031 0.781,0.292 10 false VG 5.313,4.125 6.094,4.417 0.781,0.292 10 false THA 5.313,4.458 6.094,4.75 0.781,0.292 10 false VCPR 5.313,4.813 6.094,5.104 0.781,0.292 10 false EPR 5.313,5.281 6.094,5.573 0.781,0.292 10 false PR 5.313,5.719 6.094,6.01 0.781,0.292 10 false VCPF 5.313,6.083 6.094,6.375 0.781,0.292 10 false EPFL 5.313,6.552 6.094,6.844 0.781,0.292 10 false PFL 5.302,6.938 5.865,7.115 0.563,0.177 10 false VCPP 5.313,7.302 5.885,7.5 0.573,0.198 10 false EPPM 5.323,7.802 5.948,8 0.625,0.198 10 false PPMP 4.875,7.073 5.396,7.417 0.521,0.344 10 false A109 4.875,3.375 5.229,3.583 0.354,0.208 10 false C115 4.885,3.74 5.24,3.938 0.354,0.198 10 false C115 4.885,4.104 5.25,4.302 0.365,0.198 10 false C115 4.875,4.542 5.219,4.719 0.344,0.177 10 false C115 4.885,4.906 5.229,5.083 0.344,0.177 10 false C115 4.865,5.281 5.208,5.448 0.344,0.167 10 false C115 4.875,5.813 5.229,5.99 0.354,0.177 10 false C115 4.885,6.177 5.448,6.542 0.563,0.365 10 false C115 4.885,6.552 5.24,6.74 0.354,0.188 10 false C115 4.865,7.438 5.385,7.781 0.521,0.344 10 false A109 4.865,7.802 5.385,8.146 0.521,0.344 10 false A109 4.865,0.615 5.385,0.958 0.521,0.344 10 false A109 4.865,0.99 5.385,1.333 0.521,0.344 10 false A109 4.854,1.344 5.375,1.688 0.521,0.344 10 false A109 4.865,1.708 5.385,2.052 0.521,0.344 10 false A109 4.865,2.073 5.385,2.417 0.521,0.344 10 false A109 4.865,2.438 5.385,2.781 0.521,0.344 10 false A109

A538674E01
6.094,4.198 6.552,4.396 0.458,0.198 10 false ECM 5.646,4.198 6.26,4.396 0.615,0.198 10 false C115 5.385,0.417 6,0.615 0.615,0.198 10 false VSPE 5.385,0.76 6,0.958 0.615,0.198 10 false ESPE 2.469,1.24 3.083,1.438 0.615,0.198 10 false PESE 5.063,1.135 5.521,1.333 0.458,0.198 10 false 164 5.063,0.75 5.521,0.948 0.458,0.198 10 false 163 5.063,0.417 5.521,0.615 0.458,0.198 10 false 128 0.635,0.5 1.25,0.698 0.615,0.198 10 false C118 5.365,1.25 5.979,1.448 0.615,0.198 10 false PESE 2.656,0.51 2.969,0.708 0.313,0.198 10 false VC 2.667,0.885 2.979,1.083 0.313,0.198 10 false E2 0.635,0.698 4.917,0.896 4.281,0.198 10 false Differential Pressure Sensor 2.948,1.135 3.104,1.333 0.156,0.198 10 false 1 2.958,0.396 3.115,0.594 0.156,0.198 10 false 3 2.958,0.76 3.115,0.958 0.156,0.198 10 false 2 0.625,1.771 1.24,1.969 0.615,0.198 10 false C112 0.625,1.969 4.906,2.167 4.281,0.198 10 false Shift Stroke Sensor 5.354,2.917 5.969,3.115 0.615,0.198 10 false VCPT 5.365,2.031 5.979,2.229 0.615,0.198 10 false E2SF 5.375,2.479 5.99,2.677 0.615,0.198 10 false SFV 5.063,1.656 5.521,1.854 0.458,0.198 10 false 154 5.063,2.01 5.521,2.208 0.458,0.198 10 false 123 5.063,2.396 5.521,2.594 0.458,0.198 10 false 124 2.479,2.5 2.938,2.698 0.458,0.198 10 false VOUT 2.563,2.156 3.021,2.354 0.458,0.198 10 false GND 2.552,1.75 3.01,1.948 0.458,0.198 10 false VDD 2.948,2.01 3.104,2.208 0.156,0.198 10 false 3 2.948,1.667 3.104,1.865 0.156,0.198 10 false 2 2.948,2.385 3.104,2.583 0.156,0.198 10 false 4 2.646,3.01 2.958,3.208 0.313,0.198 10 false VC 2.656,3.406 2.969,3.604 0.313,0.198 10 false E2 2.552,3.76 3.01,3.958 0.458,0.198 10 false PTO 0.604,2.979 1.219,3.177 0.615,0.198 10 false C111 0.604,3.167 3.51,3.365 2.906,0.198 10 false Oil Pressure Sensor 5.354,3.292 5.969,3.49 0.615,0.198 10 false EPTO 5.375,1.677 5.99,1.875 0.615,0.198 10 false VCSF 5.375,3.75 5.99,3.948 0.615,0.198 10 false PTO 5.052,2.906 5.51,3.104 0.458,0.198 10 false 121 5.052,3.281 5.51,3.479 0.458,0.198 10 false 120 5.052,3.656 5.51,3.854 0.458,0.198 10 false 122 2.938,3.271 3.094,3.469 0.156,0.198 10 false 1 2.938,2.927 3.094,3.125 0.156,0.198 10 false 3 2.938,3.646 3.094,3.844 0.156,0.198 10 false 2


CAUTION / NOTICE / HINT

NOTICE:

Check the fuses for circuits related to this system before performing the following inspection procedure.


PROCEDURE

1.CHECK CONNECTION BETWEEN GTS AND ECM
a.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

2.CHECK EFI NO. 2 FUSE VOLTAGE

B

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>PROBLEM SYMPTOMS TABLE


2.CHECK EFI NO. 2 FUSE VOLTAGE
A577275C01
0.302,1.573 0.688,1.354 true 0.073,0.094 0.385,0.292 0.313,0.198 10 false *1 0.135,1.531 0.448,1.729 0.313,0.198 10 false *2
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2 EFI NO. 2 Fuse


a.

Turn the ignition switch to ON.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
1 (EFI NO. 2 fuse) - Body ground Ignition switch ON 11 to 14 V


HINT:
·

Check the fuse with it installed to the No. 1 engine room relay block and No. 1 junction block assembly.

·

If the result is not as specified, since current is not flowing to the +B and +B2 terminals of the ECM, the system may not be started.




Result:
Proceed to
OK
NG



OK

3.CHECK CONNECTION BETWEEN GTS AND ECM (THROTTLE POSITION SENSOR)

NG

GO TO ECM POWER SOURCE CIRCUIT

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>ECM Power Source Circuit


3.CHECK CONNECTION BETWEEN GTS AND ECM (THROTTLE POSITION SENSOR)
a.

Disconnect the throttle body with motor assembly connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B


HINT:

Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



A

4.CHECK CONNECTION BETWEEN GTS AND ECM (ACCELERATOR PEDAL POSITION SENSOR)

B

REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>THROTTLE BODY>REMOVAL


4.CHECK CONNECTION BETWEEN GTS AND ECM (ACCELERATOR PEDAL POSITION SENSOR)
a.

Disconnect the accelerator pedal sensor assembly connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

5.CHECK CONNECTION BETWEEN GTS AND ECM (CRANKSHAFT POSITION SENSOR)

B

REPLACE ACCELERATOR PEDAL(W/SENSOR) ROD ASSEMBLY

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ACCELERATOR PEDAL>REMOVAL


5.CHECK CONNECTION BETWEEN GTS AND ECM (CRANKSHAFT POSITION SENSOR)
a.

Disconnect the crankshaft position sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

6.CHECK CONNECTION BETWEEN GTS AND ECM (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))

B

REPLACE CRANKSHAFT POSITION SENSOR

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>CRANKSHAFT POSITION SENSOR>REMOVAL


6.CHECK CONNECTION BETWEEN GTS AND ECM (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))
a.

Disconnect the camshaft position sensor (for intake camshaft) connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

7.CHECK CONNECTION BETWEEN GTS AND ECM (MANIFOLD ABSOLUTE PRESSURE SENSOR)

B

REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>CAMSHAFT POSITION SENSOR>REMOVAL


7.CHECK CONNECTION BETWEEN GTS AND ECM (MANIFOLD ABSOLUTE PRESSURE SENSOR)
a.

Disconnect the manifold absolute pressure sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

8.CHECK CONNECTION BETWEEN GTS AND ECM (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))

B

REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (EMISSION CONTROL)>VACUUM SENSOR>REMOVAL


8.CHECK CONNECTION BETWEEN GTS AND ECM (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))
a.

Disconnect the camshaft position sensor (for exhaust camshaft) connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

9.CHECK CONNECTION BETWEEN GTS AND ECM (ENGINE OIL PRESSURE AND TEMPERATURE SENSOR)

B

REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>CAMSHAFT POSITION SENSOR>REMOVAL


9.CHECK CONNECTION BETWEEN GTS AND ECM (ENGINE OIL PRESSURE AND TEMPERATURE SENSOR)
a.

Disconnect the engine oil pressure and temperature sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

10.CHECK CONNECTION BETWEEN GTS AND ECM (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))

B

REPLACE ENGINE OIL PRESSURE AND TEMPERATURE SENSOR

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (LUBRICATION)>OIL PRESSURE AND TEMPERATURE SENSOR>REMOVAL


10.CHECK CONNECTION BETWEEN GTS AND ECM (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE))
a.

Disconnect the fuel pressure sensor (for high pressure side) connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B


HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



A

11.CHECK CONNECTION BETWEEN GTS AND ECM (NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE))

B

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL PRESSURE SENSOR (for High Pressure)>REMOVAL


11.CHECK CONNECTION BETWEEN GTS AND ECM (NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE))
a.

Disconnect the No. 2 fuel pressure sensor (for low pressure side) connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B


HINT:

Perform "Inspection After Repair" after replacing the No. 2 fuel pressure sensor (for low pressure side).

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



A

12.CHECK CONNECTION BETWEEN GTS AND ECM (MASS AIR FLOW METER SUB-ASSEMBLY)

B

REPLACE NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (FUEL)>FUEL PRESSURE SENSOR>REMOVAL


12.CHECK CONNECTION BETWEEN GTS AND ECM (MASS AIR FLOW METER SUB-ASSEMBLY)
a.

Disconnect the mass air flow meter sub-assembly connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B


HINT:

Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>INITIALIZATION



A

13.CHECK CONNECTION BETWEEN GTS AND ECM (CANISTER PUMP MODULE)

B

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>MASS AIR FLOW METER>REMOVAL


13.CHECK CONNECTION BETWEEN GTS AND ECM (CANISTER PUMP MODULE)
a.

Disconnect the canister pump module connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.



Result:
Result Proceed to
Communication is not possible A
Communication is possible B



A

14.CHECK CONNECTION BETWEEN GTS AND ECM (DIFFERENTIAL PRESSURE SENSOR)

B

REPLACE CANISTER PUMP MODULE (NO. 2 CHARCOAL CANISTER SUB-ASSEMBLY)

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (EMISSION CONTROL)>CANISTER>REMOVAL


14.CHECK CONNECTION BETWEEN GTS AND ECM (DIFFERENTIAL PRESSURE SENSOR)
a.

Disconnect the differential pressure sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.


Result:
Result Proceed to
Communication is not possible A
Communication is possible B




A

15.CHECK CONNECTION BETWEEN GTS AND ECM (SHIFT STROKE SENSOR)

B

REPLACE DIFFERENTIAL PRESSURE SENSOR

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (EMISSION CONTROL)>DIFFERENTIAL PRESSURE SENSOR>REMOVAL


15.CHECK CONNECTION BETWEEN GTS AND ECM (SHIFT STROKE SENSOR)
a.

Disconnect the shift stroke sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.


Result:
Result Proceed to
Communication is not possible A
Communication is possible B




A

16.CHECK CONNECTION BETWEEN GTS AND ECM (OIL PRESSURE SENSOR)

B

REPLACE SHIFT STROKE SENSOR

Click hereDrivetrain>K120 / K120F / K121 / K121F (CVT)>SHIFT STROKE SENSOR>REMOVAL


16.CHECK CONNECTION BETWEEN GTS AND ECM (OIL PRESSURE SENSOR)
a.

Disconnect the oil pressure sensor connector.


b.

Check the communication between the GTS and ECM.

HINT:

It can be checked using the "Engine" item of the Data List.


Result:
Result Proceed to
Communication is not possible A
Communication is possible B




A

17.CHECK HARNESS AND CONNECTOR

B

REPLACE OIL PRESSURE SENSOR

Click hereDrivetrain>K120 / K120F / K121 / K121F (CVT)>OIL PRESSURE SENSOR>REMOVAL


17.CHECK HARNESS AND CONNECTOR
a.

Disconnect the throttle body with motor assembly connector.


b.

Disconnect the accelerator pedal sensor assembly connector.


c.

Disconnect the crankshaft position sensor connector.


d.

Disconnect the camshaft position sensor (for intake camshaft) connector.


e.

Disconnect the camshaft position sensor (for exhaust camshaft) connector.


f.

Disconnect the manifold absolute pressure sensor connector.


g.

Disconnect the engine oil pressure and temperature sensor connector.


h.

Disconnect the fuel pressure sensor (for high pressure side) connector.


i.

Disconnect the No. 2 fuel pressure sensor (for low pressure side) connector.


j.

Disconnect the mass air flow meter sub-assembly connector.


k.

Disconnect the canister pump module connector.


l.

Disconnect the differential pressure sensor connector.


m.

Disconnect the shift stroke sensor connector.


n.

Disconnect the oil pressure sensor connector.


o.

Disconnect the ECM connectors.


p.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(C115,A109)Location & Routing

Click Connector(C115)Engine Compartment>Engine Wire>ECM

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

C115-158 (VCTA) - Body ground Always 10 kΩ or higher
C115-129 (VCNE) - Body ground Always 10 kΩ or higher
C115-160 (VCV1) - Body ground Always 10 kΩ or higher
C115-130 (VCE1) - Body ground Always 10 kΩ or higher
C115-144 (VCPM) - Body ground Always 10 kΩ or higher
C115-146 (VCPE) - Body ground Always 10 kΩ or higher
A109-87 (VCPA) - Body ground Always 10 kΩ or higher
A109-90 (VCP2) - Body ground Always 10 kΩ or higher
C115-137 (VCVG) - Body ground Always 10 kΩ or higher
C115-179 (VCPR) - Body ground Always 10 kΩ or higher
C115-147 (VCPF) - Body ground Always 10 kΩ or higher
A109-72 (VCPP) - Body ground Always 10 kΩ or higher
C115-128 (VSPE) - Body ground Always 10 kΩ or higher
C115-154 (VCSF) - Body ground Always 10 kΩ or higher
C115-121 (VCPT) - Body ground Always 10 kΩ or higher



q.

Remove the VVT relay, D INJ relay, EFI-MAIN NO. 2 relay and EFI-MAIN NO. 3 relay from the No. 1 engine room relay block and No. 1 junction block assembly.

HINT:

Remove the VVT relay, D INJ relay, EFI-MAIN NO. 2 relay and EFI-MAIN NO. 3 relay connected between the checked terminals as the coil inside the relay influences the measurement value.



r.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A109)Location & Routing

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

A109-21 (+B) - 1 (EFI NO. 2 fuse) Always Below 1 Ω
A109-51 (+B2) - 1 (EFI NO. 2 fuse) Always Below 1 Ω
A109-21 (+B) - Body ground Always 10 kΩ or higher
A109-51 (+B2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR