ECM connector "C37"
ECM CONNECTOR SPECIFICATIONS
| Terminal No. | Wire color | Circuit | Normal voltage | Condition | Remarks |
|---|---|---|---|---|---|
| 1 | BLK/RED | Heater output of heated oxygen sensor-2 (Bank-1) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 2 | BLK/RED | Heater output of heated oxygen sensor-2 (Bank-1) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 3 | RED | Oxygen signal of heated oxygen sensor-2 (Bank-1) | 4 - 5 V | Ignition switch is at ON position. | - |
| Approx. 0.15 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . | Engine is running at specified idle speed after warmed up engine. | Output signal varies depending on the engine condition. | |||
| 4 | LT GRN | MAF sensor signal | 0.5 - 1.0 V | Ignition switch is at ON position. | - |
| 1.2 - 3.6 V Refer to REFERENCE WAVEFORM NO.3 . |
Engine running at specified idle speed after warmed up engine. | Output signal varies depending on the throttle valve opening and engine speed. | |||
| 5 | - | - | - | - | - |
| 6 | - | - | - | - | - |
| 7 | - | - | - | - | - |
| 8 | BLU/RED | Power steering pump pressure switch signal | 10 - 14 V | Ignition switch is at ON position. | - |
| 0 - 1 V | Turning steering wheel to the right or left as far as it stops while engine is running. | - | |||
| 9 | - | - | - | - | - |
| 10 | GRN/BLK | EVAP canister purge valve output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.4 . |
Ignition switch is at ON position. Set EVAP canister purge valve at 50% by using "MISC. Test" of SUZUKI scan tool. | Output signal is active low duty pulse. Duty ratio varies depending on the vehicle condition. | |||
| 11 | YEL/GRN | EGR valve (stepper motor coil 3) output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.5 . |
Engine is at cranking. | Output signal is active low duty pulse. Number of pulse generated times varies depending on engine condition. | |||
| 12 | YEL/BLK | EGR valve (stopper motor coil 1) output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.5 . |
Engine is at cranking. | Output signal is active low duty pulse. Number of pulse generated times varies depending on engine condition. | |||
| 13 | GRY/GRN | Fuel injector No.5 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , REFERENCE WAVEFORM NO.7 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 14 | PNK/GRN | Fuel injector No.3 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , Reference waveform No.8 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 15 | PNK | Fuel injector No.1 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , Reference waveform No.9 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 16 | - | - | - | - | - |
| 17 | - | - | - | - | - |
| 18 | BLK | A/F sensor signal (+) (Bank-1) | 2.0 - 2.4 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine is running at specified idle speed after warmed up engine. | - |
| 19 | WHT | A/F sensor signal (-) (Bank-1) | 1.6 - 2.0 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine is running at specified idle speed after warmed up engine. | - |
| 20 | WHT/BLK | Heater output of heated oxygen sensor-2 (Bank-2) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 21 | WHT/BLK | Heater output of heated oxygen sensor-2 (Bank-2) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 22 | RED | Oxygen signal of heated oxygen sensor-2 (Bank-2) | 4 - 5 V | Ignition switch is at ON position. | Output signal varies depending on the engine condition. |
| Approx. 0.15 V Refer to REFERENCE WAVEFORM NO.1 and REFERENCE WAVEFORM NO.2 . |
Engine is running at specified idle speed after warmed up engine. | ||||
| 23 | BLU | Ground for MAF sensor | Below 0.3 V | Ignition switch is at ON position. | - |
| 24 | RED | IAT sensor signal | 3.62 - 3.93 V | Ignition switch is at ON position and intake air temperature is at 0°C (32°F) | - |
| 1.85 - 2.02 V | Ignition switch is at ON position and intake air temperature is at 40°C (104°F) | - | |||
| 0.73 - 0.80 V | Ignition switch is at ON position and intake air temperature is at 80°C (176°F) | - | |||
| 25 | WHT | Knock sensor signal | 2 - 3 V Refer to REFERENCE WAVEFORM NO.12 . |
Engine is running at 4000 RPM after warmed up engine. | - |
| 26 | PPL/YEL | ECT sensor signal | 3.64 - 3.95 V | Ignition switch is at ON position and engine coolant temperature is at 0°C (32°F) | - |
| 1.50 - 1.63 V | Ignition switch is at ON position and engine coolant temperature is at 50°C (122°F) | - | |||
| 0.45 - 0.49 V | Ignition switch is at ON position and engine coolant temperature is at 100°C (212°F) | - | |||
| 27 | - | - | - | - | - |
| 28 | BLK/YEL | Starting motor control relay output | 0 - 1 V | Ignition switch is at ON position. | - |
| 10 - 14 V | Ignition switch is at ST position. (Engine is cranking.) | ||||
| 29 | GRY/RED | IMT vacuum solenoid valve output | 0 - 1 V | Engine is racing after warmed up engine. | - |
| 10 - 14 V | Ignition switch is at ON position. | ||||
| 30 | YEL | EGR valve (stepper motor coil 4) output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.5 . |
Engine is at cranking. | Output signal is active low duty pulse. Number of pulse generated times varies depending on engine condition. | |||
| 31 | YEL/RED | EGR valve (stepper motor coil 2) output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.5 . |
Engine is at cranking. | Output signal is active low duty pulse. Number of pulse generated times varies depending on engine condition. | |||
| 32 | GRY/BLK | Fuel injector No.6 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , Reference waveform No.13 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 33 | PNK/BLU | Fuel injector No.4 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , Reference waveform No.14 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 34 | PNK/BLK | Fuel injector No.2 output | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.6 , Reference waveform No.15 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active low pulse. Pulse frequency varies depending on the engine speed. Pulse width varies depending on the ECT and engine load. |
|||
| 35 | - | - | - | - | - |
| 36 | - | - | - | - | - |
| 37 | BRN | A/F sensor signal (+) (Bank-2) | 2.0 - 2.4 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine is running at specified idle speed after warmed up engine. | Output signal varies depending on the engine condition. |
| 38 | YEL | A/F sensor signal (-) (Bank-2) | 1.6 - 2.0 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine is running at specified idle speed after warmed up engine. | |
| 39 | BLK/YEL | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |
| 40 | - | - | - | - | - |
| 41 | - | - | - | - | - |
| 42 | - | - | - | - | - |
| 43 | - | - | - | - | - |
| 44 | - | - | - | - | - |
| 45 | BLK | Output for 5 V power source of throttle position sensor | 4.5 - 5.5 V | Ignition switch is at ON position. | - |
| 46 | WHT | Throttle position sensor signal (main) | 0.34 - 0.66 V | Ignition switch is at ON position and accelerator pedal is not depressed after warmed up engine. | Output signal varies linearly depending on the throttle valve opening. |
| 3.96 - 4.33 V | Ignition switch is at ON position and accelerator pedal is at fully depressed position after warmed up engine. | ||||
| 47 | WHT/BLU | CKP sensor signal | *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.16 , REFERENCE WAVEFORM NO.30 and REFERENCE WAVEFORM NO.31 . |
Engine is running at specified idle speed after warmed up engine. | Sensor signals are pulse. Pulse frequency varies depending on the engine speed. |
| 48 | GRY/BLK | A/C refrigerant pressure sensor signal | 1.38 - 1.52 V | Air conditioning system is not operated while engine is running and A/C refrigerant pressure is 800 kPa (116 psi). | Output signal varies linearly depending on the A/C refrigerant pressure. |
| 2.15 - 2.38 V | Air conditioning system is operation while engine is running and when A/C refrigerant pressure is 1400 kPa (203 psi). | - | |||
| 2.67 - 2.95 V | Air conditioning system is operation while engine is running and when A/C refrigerant pressure is 1800 kPa (261 psi). | - | |||
| 49 | GRY/RED | Output for 5 V power source of MAP sensor and A/C refrigerant pressure sensor | 4.5 - 5.5 V | Ignition switch is at ON position. | - |
| 50 | - | - | - | - | - |
| 51 | - | - | - | - | - |
| 52 | - | - | - | - | - |
| 53 | - | - | - | - | - |
| 54 | - | - | - | - | - |
| 55 | BRN/RED | Ignition coil No.5 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , REFERENCE WAVEFORM NO.18 and REFERENCE WAVEFORM NO.30 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on the engine speed. | |||
| 56 | BRN/WHT | Ignition coil No.3 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , Reference waveform No.19 and REFERENCE WAVEFORM NO.30 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on the engine speed. | |||
| 57 | BRN | Ignition coil No.1 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , Reference waveform No.20 and REFERENCE WAVEFORM NO.30 . |
Engine is running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on the engine speed. | |||
| 58 | BLK/YEL | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |
| 59 | BLK/YEL | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |
| 60 | - | - | - | - | - |
| 61 | - | - | - | - | - |
| 62 | - | - | - | - | - |
| 63 | - | - | - | - | - |
| 64 | RED | Ground for throttle position sensor | Below 0.3 V | Ignition switch is at ON position. | - |
| 65 | GRN | Throttle position sensor signal (sub) | 4.22 - 4.58 V | Ignition switch is at ON position and accelerator pedal is not depressed after warmed up engine. | Output signal varies linearly depending on the throttle valve opening. |
| 0.58 - 0.95 V | Ignition switch is at ON position and accelerator pedal is at fully depressed position after warmed up engine. | ||||
| 66 | WHT/RED | CMP sensor signal | *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.16 , REFERENCE WAVEFORM NO.30 and REFERENCE WAVEFORM NO.31 . |
Engine running at specified idle speed after warmed up engine. | Sensor signals are pulse. Pulse frequency varies depending on the engine speed. |
| 67 | GRY/GRN | Ground for MAP sensor, A/C refrigerant pressure sensor, engine coolant temperature sensor, IAT sensor and heated oxygen sensor-2 | Below 0.3 V | Ignition switch is at ON position. | - |
| 68 | RED/WHT | MAP sensor signal | 3.3 - 4.3 V | Ignition switch is at ON position and barometric pressure is at 100 kPa (760 mmHg). | - |
| 1.0 - 2.5 V | Refer to REFERENCE WAVEFORM NO.21 . | Output signal varies linearly depending on the throttle valve opening and engine speed. | |||
| 69 | - | - | - | - | - |
| 70 | - | - | - | - | - |
| 71 | - | - | - | - | - |
| 72 | - | - | - | - | - |
| 73 | BLK/ORN | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |
| 74 | PPL/RED | Ignition coil No.6 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , Reference waveform No.22 and REFERENCE WAVEFORM NO.30 . |
Engine running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on engine speed. | |||
| 75 | BRN/YEL | Ignition coil No.4 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , Reference waveform No.23 and REFERENCE WAVEFORM NO.30 . |
Engine running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on engine speed. | |||
| 76 | BRN/BLK | Ignition coil No.2 output | 0 - 0.6 V | Ignition switch is at ON position. | - |
| *0 - 0.6 V ↑ ↓ 4 - 6 V Refer to REFERENCE WAVEFORM NO.17 , Reference waveform No.24 and REFERENCE WAVEFORM NO.30 . |
Engine running at specified idle speed after warmed up engine. | Output signal is active high pulse. Pulse frequency varies depending on engine speed. | |||
| 77 | PNK/BLK | Heater output of A/F sensor (Bank-1) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 78 | PNK/BLU | Heater output of A/F sensor (Bank-2) | 10 - 14 V | Ignition switch is at ON position. | - |
| *0 - 1 V ↑ ↓ 10 - 14 V Refer to REFERENCE WAVEFORM NO.10 and REFERENCE WAVEFORM NO.11 . |
Engine running at specified idle speed after warmed up engine. | Output signal is active low duty pulse. Duty ratio varies depending on the engine condition. | |||
| 79 | BLK/YEL | Ground for A/F sensor heater | Below 0.3 V | Ignition switch is at ON position. | - |
| 80 | BLK/ORN | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |
| 81 | BLK/ORN | Ground for ECM | Below 0.3 V | Ignition switch is at ON position. | - |