54" Whelen Legacy Wecan Duo Issues

[fpd 317]

Good Morning,

I have a patrol vehicle with a 54" Whelen Legacy DUO (Blue/White front and Blue/Amber T/A rear). It's being controlled with a Whelen 295SLSA6 through a WECAN (2019) module. Yesterday the lightbar would not flash at all but all of the other vehicle lighting flashed as normal. I'm looking for some guidance on where to start looking for issues. Up until now, the bar has functioned normally. The siren and the other lighting remain functioning normally. None of the other functions on the lightbar work at all either (TD, Alleys, Cruise or rear T/A).

 

[shues]

Start simple:

• Does the WeCAN control point have good connections to power and ground?
• Does the Legacy have good connections to power and ground?
• Do WeCAN control point and the Legacy have three good connections at the WeCAN cable?
• Do the SLSA6 and the WeCAN control point have all good connections at the trigger wires?

 

[fpd 317]

Start simple:

• Does the WeCAN control point have good connections to power and ground?
• Does the Legacy have good connections to power and ground?
• Do WeCAN control point and the Legacy have three good connections at the WeCAN cable?
• Do the SLSA6 and the WeCAN control point have all good connections at the trigger wires?

Stand-by, I will be right back with that answer.

 

[fpd 317]

You were spot on.... I found a loose ground on the WECAN module. Thank you greatly for your help!! Now I don't have to use a spare vehicle.

 

[shues]

I'm happy to have helped!