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Home >> Cadillac >> 1991 >> Allante 4T60/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Self-Diagnostics >> How To Operate Diagnostics >> PCM Output Displays

PCM Output Displays

The PCM OUTPUTS option provides the ability to cycle PCM controlled Outputs. The DIC display identifies the solenoid or relay, and the state that the PCM is commanding that device. HI indicates that the solenoid or relay is energized, and LO indicates that the solenoid or relay is de-energized. The PCM ouputs tests can only by done at key "ON" engine "OFF". The PCM outputs available are as follows:

  1. EO00 - CYCLE NONE

    No outputs are cycled.
  2. EO01 - CAN PURGE

    Canister Purge Solenoid.
  3. EO02 - VCC SOL

    Viscous Converter Clutch Solenoid.
  4. EO04 - EGR SOL

    Electronic Vacuum Regulator Valve (EVRV).
  5. EO05

    Not Valid.
  6. EO06

    Not Valid.
  7. EO07 - ISC MOTOR

    ISC MOTOR.
  8. EO08 - CVS

    Cruise Vent Solenoid.
  9. EO09 - CVS

    Cruise Vacuum Solenoid.
  10. EO10 - 2-3 SHIFT SOLENOID

    2-3 SHIFT SOLENOID.
  11. EO11 - 3-4 SHIFT SOLENOID

    3-4 SHIFT SOLENOID
  12. EO20 - A/C RELAY

    A/C Clutch Control Relay.
  13. EO99 - CYCLE ALL

    Cycle All Outputs.