Ford truck guy Posted June 3, 2023 Share Posted June 3, 2023 my son in law has a 2022 F250 W/the 6.7.. He was missing left turn signals, we tracked it back to the truck as everything else worked fine when hooked to mine.... Went to the dealer and the said there were 2 faults showing... Basically the truck was not communicating with the computer... there was also TSB.... tech did everything and all was good.. 1/2 way into the next 150 mile trip he started getting warnings on dash - Tailer Lighting Module Fault - See manual...... any ideas ?? its going back to the dealer next week Quote Link to comment Share on other sites More sharing options...
1999 White C5 Coupe Posted June 4, 2023 Share Posted June 4, 2023 1 hour ago, Ford truck guy said: my son in law has a 2022 F250 W/the 6.7.. He was missing left turn signals, we tracked it back to the truck as everything else worked fine when hooked to mine.... Went to the dealer and the said there were 2 faults showing... Basically the truck was not communicating with the computer... there was also TSB.... tech did everything and all was good.. 1/2 way into the next 150 mile trip he started getting warnings on dash - Tailer Lighting Module Fault - See manual...... any ideas ?? its going back to the dealer next week https://static.nhtsa.gov/odi/tsbs/2022/MC-10209206-0001.pdf Quote Link to comment Share on other sites More sharing options...
Ford truck guy Posted June 4, 2023 Author Share Posted June 4, 2023 22 hours ago, 1999 White C5 Coupe said: https://static.nhtsa.gov/odi/tsbs/2022/MC-10209206-0001.pdf They did that TSB on the first visit... It cleared all the codes at the time Quote Link to comment Share on other sites More sharing options...
Oldfordguy Posted June 9, 2023 Share Posted June 9, 2023 On 6/3/2023 at 7:23 PM, Ford truck guy said: my son in law has a 2022 F250 W/the 6.7.. He was missing left turn signals, we tracked it back to the truck as everything else worked fine when hooked to mine.... Went to the dealer and the said there were 2 faults showing... Basically the truck was not communicating with the computer... there was also TSB.... tech did everything and all was good.. 1/2 way into the next 150 mile trip he started getting warnings on dash - Tailer Lighting Module Fault - See manual...... any ideas ?? its going back to the dealer next week I have a 22 F350 6.7 that had trouble with fifth wheel turning light when it was only a month old.You might laugh but I ended up spraying electrical contact cleaner on the truck 7 pin connector and it has worked fine ever since. Quote Link to comment Share on other sites More sharing options...
NH_Bulldog Posted June 10, 2023 Share Posted June 10, 2023 I have had trailer disconnected dash warnings a few times. I used spray cleaner and it has been fine since. Quote Link to comment Share on other sites More sharing options...
Ford truck guy Posted June 14, 2023 Author Share Posted June 14, 2023 Thanks for all the reply.... The dealer is replacing the coupler between the bed plug and bumper plug... If that does not work, I will have him spray electric cleaner in the plug. Ill post after all is done Quote Link to comment Share on other sites More sharing options...
sd350 Posted July 2, 2023 Share Posted July 2, 2023 Yes clean the holes in the connector @ all connections front & back @ the same time make sure your ground 1 is good & clean with a good connection to ground Quote Link to comment Share on other sites More sharing options...
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