Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Control Module (ECM) C
2008 Suzuki Swift +SECTION Engine Control Module (ECM) C
Engine Control Module (ECM) C
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | GY | 596 | 5-Volt Reference |
| 2 | OG/BK | 1031 | 5-Volt Reference |
| 3 | BN | 718 | Low Reference |
| 4 | L-BU | 1937 | Low Reference |
| 5 | L-BU | 1937 | Fuel Level Sensor Supply |
| 6 | GY | 474 | 5-Volt Reference |
| 7-8 | - | - | Not Used |
| 9 | WH | 645 | Low Reference |
| 10-11 | - | - | Not Used |
| 12 | OG/BK | 1733 | Ignition 1 Voltage |
| 13 | OG/BK | 1733 | Ignition 1 Voltage |
| 14 | - | - | Not Used |
| 15 | L-BU | 1888 | CPP Switch Signal (M/T) |
| 16 | - | - | Not Used |
| 17 | RD/WH | 440 | Battery Positive Voltage |
| 18 | RD/WH | 440 | Battery Positive Voltage |
| 19 | BK/WH | 50 | Ground |
| 20 | BK/WH | 50 | Ground |
| 21 | BK/WH | 50 | Ground |
| 22 | BK/WH | 50 | Ground |
| 23-24 | - | - | Not Used |
| 25 | D-GN/WH | 762 | A/C Request Signal |
| 26 | L-BU | 20 | Stop Lamp Switch Output |
| 27 | - | - | Not Used |
| 28 | PU | 878 | Stop Lamp Switch Output |
| 29 | D-BU | 1161 | APP Sensor 1 Signal |
| 30 | L-B U | 203 | A/C Pressure Sensor Signal |
| 31 | BK/WH | 2051 | Serial Data |
| 32 | - | - | Not Used |
| 33 | PK | 1739 | Ignition 1 Voltage |
| 34 | D-BU | 473 | High Speed Cooling Fan Relay Control |
| 35 | PU/WH | 67 | A/C Clutch Relay Control |
| 36 | BN | 1741 | Main Relay Control |
| 37 | YE | 183 | Cruise Indicator Control |
| 38 | D-GN/WH | 817 | Vehicle Speed Signal (M/T) |
| 39-40 | - | - | Not Used |
| 41 | WH | 121 | Engine Speed Signal |
| 42 | L-GN | 497 | Fuel Pump Relay Control |
| 43 | D-BU | 1936 | Fuel Level Sensor Signal |
| 44 | L-BU | 1162 | APP Sensor 2 Signal |
| 45 | GY | 397 | Cruise Control Switch Signal |
| 46 | PU | 1807 | CAN Serial Data High |
| 47 | BN/BK | 1030 | Fuel Tank Pressure Sensor Signal |
| 48 | D-GN | 602 | Rough Road Sensor Signal |
| 49 | BN/WH | 419 | MIL Control |
| 50 | GY/D-GN | 355 | Low Speed Cooling Fan Relay Control |
| 51-55 | - | - | Not Used |
| 56 | D-GN | 135 | Engine Coolant Temperature Gage Control |
| 57 | BN | 1671 | HO2S2 Heater Control |
| 58-60 | - | - | Not Used |
| 61 | PU | 30 | Fuel Gage Control |
| 62 | BN | 413 | HO2S2 Signal |
| 63 | YE | 710 | CAN Serial Data Low |
| 64 | BN | 834 | ABS (JM4) |
Connector Part Information
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Terminal Part Information
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.