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eggtrucks · 09-20-2021, **(Subject: Component 138 )**

What is component #138 spn520660. 2020 567 x15. Symptoms is intermittent abs, traction control and esp lights stay illuminated...

tree98 · 09-20-2021, **(Subject: Component 138 )**

Its an OEM code, what make of truck is this?

eggtrucks · 09-20-2021, **(Subject: Component 138 )**

(09-20-2021 )tree98 Wrote: Its an OEM code, what make of truck is this?

Peterbilt 567

Rawze · 09-20-2021, **(Subject: 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.

eggtrucks · 09-21-2021, **(Subject: 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

Rawze · 09-21-2021, **(Subject: 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.

eggtrucks · 09-22-2021, **(Subject: Component 138 )**

Found the problem, one of the modulator wires had rubbed through and was shorting to ground...

Rawze · 09-23-2021, **(Subject: 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?

eggtrucks · 09-30-2021, **(Subject: 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