2005 Thomas Rear Engine C7 J1939 issue - School Bus Fleet Magazine Forums

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2005 Thomas Rear Engine C7 J1939 issue

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aaronwilmoth80911
Top Member

538 Posts

Posted - 05/17/2016 : 08:30:43 AM

Asking for a fellow tech: Has a 2005 Thomas Rear engine with a C7 that is having gauge issues. Says when checking resistance, he has 120 ohms where it should be 60. Can anyone tell me where the terminating resistors are? He says he found one in the right hand side of the dash, but cannot find the others. Any other ideas are also welcome, and as always, any help is appreciated.

Winn10
Active Member

49 Posts

Posted - 05/17/2016 : 4:53:16 PM

Is he checking the terminating resistor or checking at the diagnostic port?

aaronwilmoth80911
Top Member

538 Posts

Posted - 05/18/2016 : 12:50:39 PM

Not really sure. He wants to know where the terminating resistors are so that he can check them. My guess would be that he has checked from the diagnostic port which is leading him to want to check the resistors.

Winn10
Active Member

49 Posts

Posted - 05/19/2016 : 4:18:57 PM

if you can get me a VIN #, I can try to look it up on accessfreightliner if he hasn't found them yet.

aaronwilmoth80911
Top Member

538 Posts

Posted - 05/20/2016 : 07:30:01 AM

1T7YN3C2251153602

aaronwilmoth80911
Top Member

538 Posts

Posted - 05/20/2016 : 08:28:57 AM

He was able to find it and apparently got his problem fixed.