![](/images/new-backgrounds/1278319/27831921x1.webp)
TROUBLESHOOTING
SYMPTOM
CAUSE
SOLUTION
No power | No +12V accessory, No | Replace circuit fuse, monitor has protection |
| ground, | device |
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| verify power is being supplied |
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Video/No audio | White audio trigger wire | Connect to +12V ACC or reverse light circuit, |
| not powered, Volume adjust | turn volume adjustment up |
| down |
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Monitor does not | Blue standby wire not powered | Connect to reverse circuit +12V |
activate in |
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Standby reverse |
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trigger |
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Negative/dark | Low voltage, Brightness | Check voltage power and ground connections, |
video image | adjustment down | turn brightness adjustment up |
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No video/no audio | Camera connection | Check camera input selection, connection to |
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| camera and junction box, correct camera |
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| connection/plugged incorrectly |
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Vehicle battery | +12V ACC (red wire) | Provide +12V ACC (red wire) power from |
drained | connected to vehicle battery | switched circuit |
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