Component 138
09-20-2021, (Subject: Component 138 ) 
Post: #1
Component 138
What is component #138 spn520660. 2020 567 x15. Symptoms is intermittent abs, traction control and esp lights stay illuminated...
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09-20-2021, (Subject: Component 138 ) 
Post: #2
RE: Component 138
Its an OEM code, what make of truck is this?


User's Signature: im_seeing_parameters_in_my_sleep 1
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09-20-2021, (Subject: Component 138 ) 
Post: #3
RE: Component 138
(09-20-2021 )tree98 Wrote:  Its an OEM code, what make of truck is this?
Peterbilt 567
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09-20-2021, (Subject: Component 138 ) 
Post: #4
RE: Component 138
When is the last time you re-torqued all the hub bearings and put them back into spec? .. it is suposed to be done every 250k miles... The most common cause of ABS alarms and/or blown wheel seals are due to neglect of re-torquing all the hub bearings at regular intervals.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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 Thanks given by: barf
09-21-2021, (Subject: Component 138 ) 
Post: #5
RE: Component 138
(09-20-2021 )Rawze Wrote:  When is the last time you re-torqued all the hub bearings and put them back into spec? .. it is suposed to be done every 250k miles... The most common cause of ABS alarms and/or blown wheel seals are due to neglect of re-torquing all the hub bearings at regular intervals.

Ill check that, truck has about 280k miles. If it is a sensor i would expect it would only illuminate the abs light instead of esp and traction control. This is first time i had an issue with a truck that has a esp/yaw rate sensor...maybe they throw codes differently
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09-21-2021, (Subject: Component 138 ) 
Post: #6
RE: Component 138
(09-21-2021 )eggtrucks Wrote:  
(09-20-2021 )Rawze Wrote:  When is the last time you re-torqued all the hub bearings and put them back into spec? .. it is suposed to be done every 250k miles... The most common cause of ABS alarms and/or blown wheel seals are due to neglect of re-torquing all the hub bearings at regular intervals.

Ill check that, truck has about 280k miles. If it is a sensor i would expect it would only illuminate the abs light instead of esp and traction control. This is first time i had an issue with a truck that has a esp/yaw rate sensor...maybe they throw codes differently

Just trying to thow out there, the obvious stuff to ensure is correct first.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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09-22-2021, (Subject: Component 138 ) 
Post: #7
RE: Component 138
Found the problem, one of the modulator wires had rubbed through and was shorting to ground...
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 Thanks given by: Rawze
09-23-2021, (Subject: Component 138 ) 
Post: #8
RE: Component 138
(09-22-2021 )eggtrucks Wrote:  Found the problem, one of the modulator wires had rubbed through and was shorting to ground...

Maybe post a pic or 2 of where it was on the truck for others and for future reference?


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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09-30-2021, (Subject: Component 138 ) 
Post: #9
RE: Component 138
(09-23-2021 )Rawze Wrote:  
(09-22-2021 )eggtrucks Wrote:  Found the problem, one of the modulator wires had rubbed through and was shorting to ground...

Maybe post a pic or 2 of where it was on the truck for others and for future reference?

I dont have a pic, but it was along left frame rail, wire was rubbing on front drive torque arm
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