TC LUMAGNY

  • Tiny
  • Ranyrizk
  • 2003 CADILLAC CTS
  • 110,000 MILES

Hello
I turned on my CTS 2003 at morning I found the light TC turned on. I tried to move the selector it was blocked on P. I just turned the ignition and selected Neutral and turned on the car it worked. I connected the scaner, it gave the stop lamps are broken. I changed the stop lamps and cleared the memory, the car worked normally for two hours and turned off alone. I turned it on, the accelerator pedal didn't work. I turned off and turned on the car it worked badly for 10 minutes and stopped completly. I waited 2 hours and turned on the car it works normally. Could any-one explain me what happen?

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Sunday, December 4th, 2011 AT 5:52 PM

6 Replies

  • Tiny
  • Ranyrizk
  • MEMBER

My scaner gave the following codes:
P0058
P0161
P0638
P0638
P2101
P2176
hope that helps

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Sunday, December 4th, 2011 AT 6:59 PM
  • Tiny
  • Rivermikerat
  • MEMBER

That many codes usually means a malfunctiong ECU.

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Sunday, December 4th, 2011 AT 11:47 PM
  • Tiny
  • Dr Loot
  • EXPERT
  • 2,331 POSTS

It sounds like a ground problem, how are your battery cables?Are they clean?Especially the ground.

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Sunday, December 4th, 2011 AT 11:48 PM
  • Tiny
  • Rivermikerat
  • MEMBER

P0058: Heated O2 sensor circuit high, bank 2 sensor 2.
P0161: Heated O2 sensor performance, Bank2
P0638: Throttle actuator control range/performance.
P2101: Minimum throttle position not detected.
P2176Minimum throttle position not detected.

Sounds like your throttle position sensor and second O2 sensor on bank 2 have gone bad.

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Sunday, December 4th, 2011 AT 11:52 PM
  • Tiny
  • Dr Loot
  • EXPERT
  • 2,331 POSTS

Possible vacuum leak

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Sunday, December 4th, 2011 AT 11:57 PM
  • Tiny
  • Rivermikerat
  • MEMBER

I can see vacuum leak if the only code)s_ pertained to the O2 sensor, but the 3 TPS fault codes don't lead me to think vacuum leak, since it's electronic as is the throttle itself, I believe.

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Monday, December 5th, 2011 AT 12:34 AM

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