| Author | Message | ||
     Flaco_3 |
On a recent trip I got a check engine light on my way home (~5 mi away). The bike was running fine on the way out but after starting back up for my return leg the light came on. Once I got home (babying the bike the whole way) I jumped the wiring harness to check the engine code and I got the following: 11, 44, 21, and 15. For those without a manual handy they are: 11 - TPS Circuit High/Low 44 - Bank Angle Sensor High/Low 21 - Exhaust Valve Actuator Open/High/Closed/Low 15 - Intake Air Temp. Sensor Voltage High/Open/Low It was a bit cold when I went out and the bike was in storage in my garage which is an icebox in the winter. However, I have not seen this before; four different sensors failing simultaneously. Could the ECM be bad? Do you think the codes are accurate? Or, could it be that because of the cold weather and humidity (i.e. rain) the wire harnesses are not making a good connection? Any help on this would be good. I am in the process of checking voltages per the diagnostics manual for each of the sensors. This is on a 2008 12XT.  | ||
| Sparky |
Two things common to the TPS, BAS & IAT sensors, at least according to an '03 XB9R schematic, are +5V and sensor ground wires from the ECM. So yeah, I'd look at the wire harness wires for any defects in insulation and the wire connections at the ECM connectors. | ||
| Albright2000 |
Does the cooling fan run continuously? | ||
| Flaco_3 |
Albright - No, but I did get the issue resolved. **UPDATE** After some investigation it turns out that the wire harnesses had some corrosion where they connect to the ECM. Some minor cleaning and a spot of grease fixed the problem. |
