Question about 1996 Chevrolet Cavalier

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Eng light comes on and code 1887

My 1996 cav. was taken in to get fixed because my c. eng light came on. mech. read a code reading 1887 from the car. it has something to do with the tranny, but when i look it up on the net im lost..... I'm selling it and i need to know whats wrong.....

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The code P1887 is an indication of a malfunction with the TCC release switch.
The Torque Converter Clutch (TCC) release switch is part of the Automatic Transmission Fluid Pressure Manual Valve Position Switch (TFP Val. Position Sw.). The TFP Val. Position Sw. is mounted to the transmission valve body. The switch is normally-closed. The switch signals the Powertrain Control Module (PCM) that the TCC is released. This is accomplished by Torque Converter release fluid pressure acting on the switch contact, thus opening the switch. When the voltage is high on the circuit, the Powertrain Control Module recognizes that the TCC is no longer engaged.
When the PCM determines that the TCC release switch is open (indicating that the TCC is not applied) and the TCC slip speed indicates that the TCC is applied, then DTC P1887 sets.

Posted on Oct 11, 2008


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