Crankshaft position sensor wire colors diagram needed?

Tiny
GDOGG79045
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 240,000 MILES
I accidentally ripped the wires off my harness to the crankshaft position sensor and I don't know what wire goes where there is a light green, blue, and yellow wires.
Thursday, December 9th, 2021 AT 7:02 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,911 POSTS
Hi,

If you take a look at the pic below, it provided the wire locations in the connector. Make sure the pinout picture indicates the wire colors you have. I believe they do, but they also indicate tracer colors you didn't mention.

Let me know if this helps or if you have other questions. Here is one for the 4.3 as well

Take care,

Joe

See pic below.
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Thursday, December 9th, 2021 AT 7:16 PM
Tiny
AL514
  • MECHANIC
  • 4,812 POSTS
Hello, this is the wiring diagram for the Crank Sensor circuit. Did the wires get ripped out of the sensor connector at the sensor? Are you planning on replacing the sensor or just try to fix the wiring? If it's replaced, you'll need to have the Crankshaft Position sensor Relearn Procedure done with a scan tool that is capable. If the key has been turned on while the connector was unplugged (ripped out) it may need the relearn procedure done, depends on if the ECM lost the Crankshaft variation. I will try to find the connector diagram so you can try repairing it. Okay, Joe took care of that.
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Thursday, December 9th, 2021 AT 7:25 PM

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