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Symptom: P1593-SPEED CONTROL SWITCH NO.1 STUCK When Monitored and Set Condition: P1593-SPEED CONTROL SWITCH NO.1 STUCK When Monitored: Ignition on. Set Condition: S/C Switche #1 is mechanically stuck in the On/Off, Resume/Accel, or Set position for too long. One trip fault. POSSIBLE CAUSES SPEED CONTROL SWITCH STATUS SPEED CONTROL SWITCHES (V37) S/C SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT (V37) S/C SIGNAL CIRCUIT SHORTED TO GROUND (V37) S/C SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE (V37) S/C SIGNAL CIRCUIT OPEN (K900) SENSOR GROUND CIRCUIT OPEN PCM TEST ACTION APPLICABILITY 1 Start the engine. t, monitor each switch function for the Speed Control Switches. Press and release each Speed Control Button. All Yes → Refer to the INTERMITTENT CONDITION Symptom (Diagnos- tic Procedure). No → Go To 2 249 DRIVEABILITY - NGC |