AutoCodes – Cadillac – P1887 Cadillac

P1887 Cadillac Code - Torque Converter Clutch Release Switch Circuit

Quick Answer

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). Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1887 Cadillac indicates Torque Converter Clutch Release Switch Circuit.
Common causes: Common causes include 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.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,659

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1887 Cadillac Description

OBDII Code P1887 Cadillac - Torque Converter Clutch Release Switch Circuit - AutoCodes.com — P1887 Cadillac Code - Torque Converter Clutch Release Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P1887 Cadillac?

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 to Fix the DTC P1887 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1887 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1887 Cadillac code?

Need more information on how to fix the P1887 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1887 Cadillac code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.