Torque Converter Clutch Release Switch Circuit


Table of contents

P1887 OLDSMOBILE Possible Causes

  • Faulty Torque Converter Clutch (TCC) Release Switch
  • Torque Converter Clutch (TCC) Release Switch harness is open or shorted
  • Torque Converter Clutch (TCC) Release Switch circuit poor electrical connection

How do I fix code P1887 OLDSMOBILE?

  Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.

Tech Notes

  • There is a factory service bulletin for the following Oldsmobile models:
  • 2000-2002 Oldsmobile Intrigue
  • 2000-2003 Oldsmobile Aurora
  • 2000-2004 Oldsmobile Alero
  • 2000-2004 Oldsmobile Silhouette
  • Oldsmobile Factory Service Bulletin OBDII Code P1887

Cost of diagnosing the P1887 OLDSMOBILE code

  The cost of diagnosing the P1887 OLDSMOBILE code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1887 OLDSMOBILE Description

  With the engine speed over 500 rpm, TR switch in D4, Torque Converter Clutch (TCC) commanded on, TCC slip speed is -20 to +40, the Powertrain Control Module (PCM) detects that TCC Release pressure was present (the switch is open).

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