Fault code No. | 22 |
Symptom | Open or short circuit of intake air temperature sensor lead |
Fail-safe action | Engine startup: Possible |
Riding: Possible | |
Diagnostic monitoring code No. | D:05 |
Meter display | Displays the intake air temperature. |
Checking method | Compare the actually measured intake air temperature with the meter display value. |
Item/components and probable cause | Check or maintenance job | Sensor inspection procedure | |
1 | Connection of intake air temperature sensor coupler. Check the connection of the coupler is secure. Remove the coupler, and check each pin (for bending, wear, or locking). | Poor connection → Connect it securely, or repair/replace the wire harness. | Place the main switch to the ON position, and check the fault code indication. No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
2 | Connection of main harness ECU coupler. Check the connection of the coupler is secure. Remove the coupler, and check each pin (for bending, wear, or locking). | Poor connection → Connect it securely, or repair/replace the wire harness. | Place the main switch to the ON position, and check the fault code indication. No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
3 | Continuity of wire harness | Open or short circuit → Replace the wire harness. Black/Blue-Black/Blue Brown/White-Brown/White | Place the main switch to the ON position, and check the fault code indication. No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
4 | Installation status of intake air temperature sensor | Check the mounting section for a loose or pinched mounting. Make sure that the mounting position is correct. | Place the main switch to the ON position, and check the fault code indication. No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
5 | Intake air temperature sensor malfunction | Check in the diagnostic mode (Code No. 05). Sensor inspection procedure Refer to "Checking the intake air temperature sensor". During cold starting: A temperature close to the ambient temperature is indicated. Indication is incorrect. → Replace the intake air temperature sensor. | Place the main switch to the ON position, and check the fault code indication. No fault code indicated. → Recovered. Fault code indicated. → Check the next step. |
6 | ECU malfunction | Replace the ECU |