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When Monitored and Set Condition

  1. When Monitored: With the ignition on.
  2. Set Condition: Anytime the Powertrain Control Module (PCM) doesn't sense the proper voltage on the Speed Control Switch Off Signal circuit.
Possible Causes 
FUSE 10 OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
SPEED CONTROL SWITCH SIGNAL CIRCUIT SHORT TO GROUND
SPEED CONTROL SWITCH OFF SIGNAL CIRCUIT OPEN
SPEED CONTROL SWITCH
POWERTRAIN CONTROL MODULE

For a complete Powertrain Control Module Circuit Diagram, (Refer to ENGINE - SCHEMATICS AND DIAGRAMS) .