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PrestonBus
Active Member
USA
13 Posts |
 Posted - 03/20/2017 : 08:11:46 AM
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2006 CE300 conventional. DT466, Allison trans.
Red SOS lights went out this morning, on LEFT SIDE ONLY (front and rear)
All Ambers work correctly, RIGHT SIDE RED's working, but Ive lost circuit to LEFT SIDE RED SOS's, and the upper light on Stop Sign. Out on ELMO as well.
Power-probed the front SOS light, and I can power on the rear, the stop sign light, and ELMO indicators, which tells me the circuit wiring itself is good.
Im suspecting the BCM module...
Anyone else come across this? |
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JoeHEB1
Advanced Member
498 Posts |
Posted - 03/20/2017 : 11:14:38 AM
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| Try swapping BCM with a known good one. |
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Donguy
New Member
7 Posts |
Posted - 03/20/2017 : 8:37:04 PM
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| Unplug the wiring connections on the BCM and carefully check the plugs and pins for looseness and melting. We've had some where the plug got so hot that it melted the plastic connector inside where the pins are. You couldn't see it until you removed them. |
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slippert
Top Member
USA
630 Posts |
Posted - 03/21/2017 : 08:23:29 AM
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You can also have an issue in the lights themselves....one of the three can make the FET(fancy name for circuit breaker) inside BCM trip and lose both front and rear and one stop sign light on an IC ...I have had that before myself....
My example:: both light on one side inop, started working on rear light, ended up replacing complete light due to rust....went to work on front and was working fine... figured bad rear light was causing FET to trip... Stop sign and both rear lights are feed from same wire off BCM..
I suppose could be BCM, but have I have buses here in that vintage that are at 250,000 to just under 300,000 on miles and have yet to have to replace a BCM.... Now that I said that I am looking for wood to knock on...! |
Edited by - slippert on 03/21/2017 08:29:59 AM |
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SOS lights inoperative on one side only
