State Display Test Mode
STATE DISPLAY TEST MODEThe switch inputs to the Powertrain Control Module (PCM) have two recognized states: HIGH and LOW For this reason, the PCM cannot recognize the difference between a selected switch position versus an open circuit, a short circuit, or a defective switch. If the State Display screen shows the change from HIGH to LOW or LOW to HIGH, assume the entire switch circuit to the PCM functions properly. From the state display screen, access either State Display Inputs and Outputs or State Display Sensors.
STATE DISPLAY INPUTS AND OUTPUTS
Connect the DRB scan tool to the data link connector and access the State Display screen. Then access Inputs and Outputs. The following list contains the PCM system functions accessible through the Inputs and Outputs screen:
- Park/Neutral Switch
- Speed Control Resume
- Brake Switch
- Speed Control On/Off
- Speed Control Set
- S/C Vent Solenoid
- Actual S/C Vent Solenoid
- S/C Vacuum Solenoid
- Actual S/C Vacuum Solenoid
- S/C Cancel
- S/C Last Cutout
- S/C Working Status
- S/C Denied Status
- A/C Clutch Relay
- Actual A/C Clutch Relay
- EGR Solenoid
- Actual EGR Solenoid
- Automatic Shutdown Relay
- Actual Automatic Shutdown Relay
- Automatic Shutdown Relay Sense
- Radiator Fan Relay
- Actual Radiator Fan Relay
- Duty Cycle EVAP Purge Solenoid
- Actual EVAP Purge Solenoid
- Torque Converter Clutch Solenoid
- Power Steering Switch
- Closed Loop State
- Current CMP Edge
- Current CKP State
- Current Sync State
- Fuel Pump Relay
- Actual Fuel Pump Relay
- Ignition Sense (A21)
- Malfunction Lamp
- Limp-in Reason
STATE DISPLAY SENSORS
Connect the DRB scan tool to the vehicle and access the State Display screen. Then access Sensor Display. The following list contains the PCM system functions accessible through the Sensor Display screen:
- Battery Temperature
- Engine Coolant Temperature
- Engine Coolant Temp Sensor
- Throttle Position Volts
- Minimum Throttle
- Knock Sensor Volts
- Battery Voltage
- MAP Sensor Reading
- Idle Air Control Motor Position
- Adaptive Fuel Factor
- Barometric Pressure
- Engine Speed
- Module Spark Advance
- Speed Control Target
- Intake Air Temp Degrees
- Intake Air Temp Volts
- Charging System Goal
- Theft Alarm Status
- Map Sensor Voltage
- Vehicle Speed
- Throttle Opening (percentage)
- TPS Calculated
- Cam Timing Position
- Target Idle
- Time From Start To Run
- Run Time At Stall
- Injector Pulse-width
- Upstream O2S Volts
- Downstream O2S Volts
- Closed Loop Timer
- Short Term Adaptive
- Current Adaptive Cell
- Adaptive Memory Cell 0
- Adaptive Memory Cell 1
- Adaptive Memory Cell 2
- Adaptive Memory Cell 3
- Adaptive Memory Cell 4
- Adaptive Memory Cell 5
- Adaptive Memory Cell 6
- Adaptive Memory Cell 7
- Adaptive Memory Cell 8
- Adaptive Memory Cell 9
- Adaptive Memory Cell 10
- Adaptive Memory Cell 11
- Adaptive Memory Cell 12
- Adaptive Memory Cell 13
- Purge Free Idle Cell
- Purge Free Cell 2 (Corresponds To Memory Cell 2)
- Purge Free Cell 3 (Corresponds To Memory Cell 5)
- Target IAC Steps
- Retard Cylinder (1)
- Retard Cylinder (2)
- Retard Cylinder (3)
- Retard Cylinder (4)