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Brake light switch problem

Tiny
DRPERGIS
  • MEMBER
  • 2007 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 98,000 MILES
My truck recently started having reduced engine power, service stabilitrack/traction control light come on. Used a code reader and got a P2138 code for the APP sensor. I replaced the sensor and decided to replace the brake light switch also since my cruise control had not been working. Now my check engine light turned off but service stabilitrack/and traction still comes up and now also the ABS light, my truck also will not shift out of park now. Did I install the brake light switch wrong?
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Wednesday, July 19th, 2017 AT 2:56 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Cannot really say on brake light switch, it could be something else as well. recheck your installation then have a mechanic scan for codes when ABS light is on it automatically knocks out traction control. your scanner will not pick up these codes anyhow. See link.
https://www.2carpros.com/articles/abs-warning-light-on-easy-repair-guide
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Wednesday, July 19th, 2017 AT 3:15 PM
Tiny
STEVE W.
  • MECHANIC
  • 12,963 POSTS
Do not be surprised if the reduced power returns as well. The P2138 code is a 50/50 code, you test out the APP sensor and the throttle body itself. Then it runs about 50/50 as to which is the actual failed item.
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Wednesday, July 19th, 2017 AT 4:19 PM

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