Turn the ignition switch to "OFF". | ||
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Disconnect the ECT sensor 3P connector. Check for loose or poor contact on the ECT sensor connector. ![]() | ||
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Connect the ECT sensor 3P connector. Place the motorcycle on its side stand. Turn the ignition switch to "ON". ![]() Check that the MIL blinks. | Does not blink → | Loose or poor contact on the ECT sensor connector. |
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7 blinks | ||
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Turn the ignition switch to "OFF". Disconnect the ECT sensor 3P connector. Measure the resistance at the ECT sensor terminals. ![]() Connection: Pink/white (+) - Green/orange (-) (sensor side terminals) Standard. 2.3-2.6 kfl (20°C/68°F) | Abnormal → | Faulty ECT sensor. |
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Normal | ||
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Turn the ignition switch to "ON". Measure the voltage between the ECT sensor 3P connector terminal of the wire harness side and ground. ![]() Connection: Pink/white (+) - Ground (-) Standard: 4.75-5.25 V | Out of range → | Open or short circuit in Pink and Pink/white wire. Loose or poor contacts on the ECM connector. |
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Voltage exists | ||
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Measure the voltage at the ECT sensor 3P connector of the wire harness side.![]() Connection: Pink/white (+) - Green/orange (-) Standard: 4.75-5.25 V | Out of range → | Open or short circuit in Green/orange wire. Loose or poor contacts on the ECM connector. |
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Voltage exists | ||
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Replace the ECM with a new one, and inspect it again. |