Just had the initial 1K service on my 21 Tri Glide…everything good.
Took the wife across the river for a short ride and lunch today; upon leaving the restaurant I noticed the “Check Engine” light on.
The code dump looked like this:
ECM Y
U0121 lost comms w/ABS
U2067 ABS EHCU INITIALIZATION FAILED (no vehicle pwr or lost comms diagnostics)
U2087 ABS EHCU MESSAGE LOSS FAULT (no vehicle pwr or lost comms diagnostics)
(NOTE: The EHCU is the Electro-Hydraulic Control Unit…a.k.a. ABS module)
END
P/n 001805-01
BCM Y
B2285 Rear Brake Configuration Error (no vehicle pwr or lost comms diagnostics)
U0121 lost comms w/ABS
END
P/n 41000341
SPDO Y
U0121 lost comms w/ABS
END
PN 70900121D
ABS N (no codes)
RDO N (no codes)
I found most of the codes in the Trike Service Supplement.
The battery terminals were tight, ground points good, battery voltage fine - then I got to thinking…
When we left the restaurant I turned the ignition switch on as the wife asked me a question. I turned it off quickly, gave a one-word answer, flipped the bike back in RUN and immediately hit the starter.
After making the U-turn from the street parking spot I noticed the idiot light. I’m wondering if it was the Canbus complaining that I didn’t let everything ‘wake up’ on the network before jabbing the starter button.No other idiot lights (like the ABS light which turned off as usual once we were rolling).
All the codes cleared fine.
I think I’ll try to replicate this event to see if that’s the root cause of these multiple codes.
Took the wife across the river for a short ride and lunch today; upon leaving the restaurant I noticed the “Check Engine” light on.
The code dump looked like this:
ECM Y
U0121 lost comms w/ABS
U2067 ABS EHCU INITIALIZATION FAILED (no vehicle pwr or lost comms diagnostics)
U2087 ABS EHCU MESSAGE LOSS FAULT (no vehicle pwr or lost comms diagnostics)
(NOTE: The EHCU is the Electro-Hydraulic Control Unit…a.k.a. ABS module)
END
P/n 001805-01
BCM Y
B2285 Rear Brake Configuration Error (no vehicle pwr or lost comms diagnostics)
U0121 lost comms w/ABS
END
P/n 41000341
SPDO Y
U0121 lost comms w/ABS
END
PN 70900121D
ABS N (no codes)
RDO N (no codes)
I found most of the codes in the Trike Service Supplement.
The battery terminals were tight, ground points good, battery voltage fine - then I got to thinking…
When we left the restaurant I turned the ignition switch on as the wife asked me a question. I turned it off quickly, gave a one-word answer, flipped the bike back in RUN and immediately hit the starter.
After making the U-turn from the street parking spot I noticed the idiot light. I’m wondering if it was the Canbus complaining that I didn’t let everything ‘wake up’ on the network before jabbing the starter button.No other idiot lights (like the ABS light which turned off as usual once we were rolling).
All the codes cleared fine.
I think I’ll try to replicate this event to see if that’s the root cause of these multiple codes.