Part II, Harley-Davidson DTC (diagnostic trouble codes) 2007-2009 revealed.

Biker Chad

Part II

Last month I told you how to access your Harley’s DTC codes. I hope you got to read Part one of this series in the last issue, but if not try to get in contact with our editor Richee Lee at editor@saddletrampusa.com This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Richee is an avid Harley rider and a great guy, he will get you hooked up with a subscription and any back issues if they available.

So now that we all know how to get the codes out of the bike’s computer, what do they mean? I have to say that even when you pull a code, or multiple codes, it does not mean that you can say you are a master mechanic. What I am trying to say is that the description of the codes is not always accurate enough to tell you why the code was stored, or what the exact fix is. What it does tell you is the where to start as you begin to diagnose a possible problem. The codes just tell you that the bike’s sensors and computer software read and stored a fault in a system of many components. I will give you an example: Lets say that your check engine light comes on. You then follow the steps in Part I of this series. You get a code (P1356 rear cylinder no combustion.) The code tells you what the sensor(s) picked up on, but not why it happened, so it is still necessary to consider other factors. Again I will give an example: if the P1356 code comes along with codes like: (P1355 rear ignition coil driver high or shorted), (P0263 rear injector open or low), (P0154 rear oxygen sensor inactive), you will have consider the combination of multiple codes and the reason they come up. A little cause and effect may need to be applied in order to make a proper diagnosis.

So what if you can’t fix the problem on the roadside? Well, you can use the codes to make a more educated decision to keep riding until you can get to a repair shop. If you don’t think it is safe to ride, call a local repair shop, tell them what the codes are, and decide together if riding to the shop or getting it picked up.

Now the moment you have all been waiting for. What do the codes mean? I will list the first batch of codes to close out Part II of this series. There are more than one batch of codes to list, so I will have to list them in all in the coming parts of this series. As always, ride safe and remember knowledge is power my friends.

~ Biker Chad

P0605 ECM Flash memory error
P0603 ECM Eprom memory error
U1300 ECM serial data low
U1301 ECM serial data high
U1097 Loss of speedometer serial data to ECM
U1064 Loss of TSM/FSFM serial data to ECM
P1003 System relay contacts open
P1002 System relay coil high/shorted
P1001 System relay coil open/low
P1004 System relay contacts closed
P1009 Incorrect password
P1010 Missing password
P06415 V+Vref 1 out of range
P06515 V+Vref 2 out of range
P0373 CKP sensor intermittent
P0107 Map sensor open/low
P0108 Map sensor high
P0374 CKP sensor synch error
P1511 Throttle actuator control power management failure of throttle control actuator
P1600 EFI module processor internal error
P1270 TGS validation error
P2107 EFI module processor internal fault
P2101 Throttle actuator control motor circuit range/performance error
P2122 TGS1 low/open
P2123 TGS1 high
P2127 TGS2 low/open
P2128 TGS2 high
P2138 TGS correlation error (twist grip sensor)
P0120 TPS1 range error
P0220 TPS2 range error
P0122 TPS1 low
P0123 TPS2 high/open
P0222 TPS2 low
P0223 TPS2 high/open
P2135 TPS correlation error
P2119 EFI motor throttle body range performance
P2100 EFI motor circuit open
P2101 EFI motor circuit range performance (actuation error)
P2102 EFI motor circuit low
P2103 EFI motor circuit high
P2176 EFI closed position not learned
P1514 Air flow fault
P2105 EFI forced engine shutdown
P1501 Jiffy stand sensor low
P1502 Jiffy stand sensor high
P0572 Brake switch low
P0017 ET sensor low
P0118 ET sensor high
P0112I AT voltage low
P0113I AT voltage open/high
P1351 From ignition coil driver open/low
P1354 Rear ignition coil driver open/low
P1352 Front ignition coil driver high/shorted
P1355 Rear ignition coil driver high/shorted
P1357 Front cylinder combustion intermittent
P1358 Rear cylinder combustion intermittent
P0261 Front injector open/low
P0263 Rear injector open/low
P0262 Front injector high
P0264 Rear injector high
P0562 Battery voltage low
P0563 Battery voltage high
P0501 VSS sensor low
P0502 VSS sensor high/open
P1356 Rear cylinder no combustion
P1353 Front cylinder no combustion
P0444 Purge solenoid open/low
P0445 Purge solenoid high
P1475 Exhaust actuation position error
P1477 Exhaust actuator open/low
P1478 Exhaust actuator shorted/high
P0131 Front oxygen sensor low
P0151 Rear oxygen sensor low
P0132 Front oxygen sensor high
P0152 Rear oxygen sensor high
P0134 Front oxygen sensor inactive
P0154 Rear oxygen sensor inactive
P1510 EFI limited performance mode
P1511 EFI power management mode
P1512 EFI forced idle mode
P0577 Cruise control input high