DTC P1668 Cadillac

Open in Stop Light Switch Circuit

Open in Stop Light Switch Circuit

Description

An open in the stop light switch circuit continues for at least 0.3 sec. when the IG1 terminal voltage is between 9.5 to 17.2 V and the brake pedal is released (STP OFF)

Cause and Solution

Stop light switch Stop light switch circuit

Video Guide

Duration: PT3M56S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1668
  • Brand: Cadillac
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