As per another thread, I have yet to change out the 7 pin cable. Prior to doing so, I decided to confirm whether the old cable is still usable. I hooked up the 7 pin to the truck (which recogniz...
Yes, the brakes worked fine previously, although with another truck. Due to circumstance, the trailer has sat for a number of months (bit over one year). And I have been able to confirm the current truck's trailer brake system does work (with another trailer).
Marv
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,236 PostsLatest Activity: Apr 21, 2025
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Prior to doing so, I decided to confirm whether the old cable is still usable. I hooked up the 7 pin to the truck (which recogniz...","body@stringLength":"981","rawBody":"As per another thread, I have yet to change out the 7 pin cable.
Prior to doing so, I decided to confirm whether the old cable is still usable.
I hooked up the 7 pin to the truck (which recognized the trailer), and ran through the lights/turn signal/brake lights process (can't recall what that process is called) and all lights worked and message indicated no issues.
However, the manual brake controller does not activate the trailer brakes, nor does applying the truck brake pedal.
So, a couple questions:
- Don't really understand the a/m check process. Does it only show the wiring to the various lights is working? In other words, this does not test the full brake circuit? - if that is correct, no brakes then suggests there is an issue somewhere after the 7 pin cable? - And if there is an issue at one of the brakes (ie loose wire), will that affect all brakes?
Thanks in advance,
Marv","kudosSumWeight":0,"postTime":"2022-05-28T17:24:12.000-07:00","images":{"__typename":"AssociatedImageConnection","edges":[],"totalCount":0,"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}},"attachments":{"__typename":"AttachmentConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"tags":{"__typename":"TagConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"timeToRead":1,"currentRevision":{"__ref":"Revision:revision:3533268_1"},"latestVersion":null,"metrics":{"__typename":"MessageMetrics","views":5563},"visibilityScope":"PUBLIC","canonicalUrl":null,"seoTitle":null,"seoDescription":null,"isEscalated":null,"placeholder":false,"originalMessageForPlaceholder":null,"messagePolicies":{"__typename":"MessagePolicies","canModerateSpamMessage":{"__typename":"PolicyResult","failureReason":{"__typename":"FailureReason","message":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","key":"error.lithium.policies.feature.moderation_spam.action.moderate_entity.allowed.accessDenied","args":[]}}},"archivalData":null,"customFields":[],"body":"As per another thread, I have yet to change out the 7 pin cable.
Prior to doing so, I decided to confirm whether the old cable is still usable.
I hooked up the 7 pin to the truck (which recognized the trailer), and ran through the lights/turn signal/brake lights process (can't recall what that process is called) and all lights worked and message indicated no issues.
However, the manual brake controller does not activate the trailer brakes, nor does applying the truck brake pedal.
So, a couple questions:
- Don't really understand the a/m check process. Does it only show the wiring to the various lights is working? In other words, this does not test the full brake circuit? - if that is correct, no brakes then suggests there is an issue somewhere after the 7 pin cable? - And if there is an issue at one of the brakes (ie loose wire), will that affect all brakes?
Yes, the brakes worked fine previously, although with another truck. Due to circumstance, the trailer has sat for a number of months (bit over one year). And I have been able to confirm the current truck's trailer brake system does work (with another trailer).
Yes, the brakes worked fine previously, although with another truck. Due to circumstance, the trailer has sat for a number of months (bit over one year). And I have been able to confirm the current truck's trailer brake system does work (with another trailer).