My reverse suddenly failed, I hear all the relays ticking in but no operation. Whereto?
I don't believe that is correct.When you first turn on the key the bikes instrument panel will turn on all the lights for a bulb check. Does the "R" bulb light for the bulb check? It is required for reverse to work. If the bulb burns out you will have no reverse. The neutral light must light as well when trying to go in reverse.
You could be right but I am not sure Dave. I don't solve many issues but I tend to push the conversation forward.I don't believe that is correct.
The "R" light bulb receives "input power" from the tail main relay # 3.
The "R" light bulb receives a "ground" from the Reverse Control Unit.
Then the bulb illuminates....!
You could have "input power" and "ground" to the "R" bulb but the bulb is burned out.
In this case the reverse would work if all else is good. The Reverse Control Unit has "ground" from the Speed Limiter Fuse.
At least that's my evaluation from reviewing the reverse circuit.
But I have been wrong before.....!! Have I missed something....???
If the bulb does not burn from lack of "ground", from the Reverse Control Unit, reverse will not work.....!!!!
As I get older things start to blur a lot more. I know a cruise will not engage with a burned out light. I might have carried that over??? I guess really it doesn't make much difference. If he puts it in reverse and it works or doesn't he will have an idea He is aware of the bulb test so if it passes the bulb test but no reverse light he can assume it is not the bulb. There must be something else the system doesn't like. Lei's wait and see if/what he says next. Then we get another guess. Sure easier when I don't have to do the work. 😎Mike, I suspect you have resolved more reverse issues than I have. I have only been associated with (working on) GL1500's for 27 years.
However, I have worked on four or five reverse issues with varying problems.
Some are easy while others are more difficult...!
You are probably correct, I have been known to be wrong before.
Johnno, Did you find the "fault" at the D7 Diode (Yellow/Red and Black/White wires)....???HI, It was completely dead no light, nothing. Tupperware off and checks carried out of relays and all fuses. I did find a fault in the diode pack but never went to the reverse controller. i have decided to do without the reverse for now , "cos I want to ride. Lock down has been too long!!! Level 2 has been declared from mid night Tomorrow Monday 17 th August. Thanks for advice received. Stay Safe!!