I found this in another post...

11 Cylinder identification sensor failure
12 Crankshaft position sensor failure
13 Intake pressure sensor failure
14 Intake pressure sensor pipeline failure
15 Throttle position sensor wire disconnected or short-circuited
16 Throttle position sensor stuck
21 Water temperature sensor failure
22 Intake temperature sensor failure
23 Atmospheric pressure sensor failure
24 Oxygen sensor failure
30 Lean angle cut-off switch activated
31 Maximum allowable Oxygen sensor correction level exceeded
32 Oxygen sensor correction level too low
41 Lean angle cut-off switch disconnected or short-circuited
42 Vehicle speed sensor or neutral switch failure
43 Monitor voltage -- less than 3v
44 ECU failure

However, It's from an FJR forum and may not be the same for the road* (no water cooled engine for #21). Also, no code 29.