Data List / Active Test [09/2020 - ]

HINT: 

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

1. Read the Data List according to the display on the Techstream.

   Body Electrical > Pre-Collision System > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Total Distance Traveled	-	-	-	Cannot be used
   Total Distance Traveled - Unit	-	-	-	Cannot be used
   PCS Function ON/OFF State	Pre-collision system on/off status	ON or OFF	ON: Pre-collision system on OFF: Pre-collision system off	-
   PBA Request	Pre-collision brake assist operation status	Not PBA Request, PBA Standby Request, PBA Request Level 1, PBA Request Level 2	Not PBA Request: Pre-collision brake assist not operating PBA Standby Request: Pre-collision brake assist operating and brake pedal not depressed PBA Request Level 1: Pre-collision brake assist operating and brake pedal depressed PBA Request Level 2: Pre-collision brake assist operating and brake pedal deeply depressed	The value varies according to the possibility of a collision. The pre-collision brake assist request only indicates the status that the assist preparation is necessary. Whether or not the assist control is actually performed is dependent upon how the driver depresses the brake pedal.
   VGRS Activation Request	-	-	-	Cannot be used
   Warning Brake Request	-	-	-	Cannot be used
   FPB Request	PCS brake request to skid control ECU (pre-collision braking)	ON or OFF	ON: Operating OFF: Not operating	-
   PB Request	Pre-collision brake operation status	ON or OFF	ON: Operating OFF: Not operating	-
   AVS Control Request	-	-	-	Cannot be used
   Prefill	PCS brake operation preparation to skid control ECU	ON or OFF	ON: Operating OFF: Not operating	-
   PBR Request	PBR operation status	ON or OFF	ON: Operating OFF: Not operating	-
   PBH Request	PBH operation status	ON or OFF	ON: Operating OFF: Not operating	-
   PCS PBA Invalid	Pre-collision brake assist function status	ON or OFF	ON: Pre-collision brake assist function invalid OFF: Pre-collision brake assist function valid	-
   PCS Warning Buzzer Invalid	PCS warning buzzer function status	ON or OFF	ON: PCS warning buzzer function invalid OFF: PCS warning buzzer function valid	-
   PCS PB Invalid	PCS brake function status	ON or OFF	ON: PCS brake function invalid OFF: PCS brake function valid	-
   Acceleration Suppression at Low Speed (A Control) Invalid	Acceleration suppression at low speed (A control) invalid status	ON or OFF	ON: Acceleration suppression at low speed (A control) function invalid OFF: Acceleration suppression at low speed (A control) function valid	Cannot be used
   Emergency Steering Assist Invalid 1	Emergency Steering Assist Invalid 1 status	ON or OFF	ON: Emergency steering assist invalid 1 function invalid OFF: Emergency steering assist invalid 1 function valid	-
   PCS Warning Display Request	PCS warning message status	Not Request, PCS Warning Display 1 Request, PCS Warning Display 2 Request, PCS Warning Display 3 Request	Not Request: Not displayed PCS Warning Display 1 Request: Displayed PCS Warning Display 2 Request: Not used PCS Warning Display 3 Request: Not used	"BRAKE!" is displayed on multi-information display
   PCS Warning Buzzer Request	PCS meter buzzer operation status	ON or OFF	ON: PCS warning buzzer sounding OFF: PCS warning buzzer not sounding	-
   Vehicle Information (Conv/HV/EV)	Vehicle information (Conv/HV/EV)	Unknown, Conv or HV/EV	Unknown: Vehicle information not confirmed Conv: Conventional HV/EV: Hybrid vehicle	-
   Vehicle Information (Transmission Type)	Vehicle information (transmission type)	MT, AT, CVT, MMT, SMT, HV/EV - AT or Unknown	Displays the type of transmission	-
   Power Steering Control Module Equipped Information	Power steering control module is installed or not	Absence or Presence	Absence: Not equipped Presence: Equipped	-
   VGRS ECU Equipped Information	Variable gear ratio steering system function availability	Unknown, Absence or Presence	Unknown: Vehicle information not confirmed Absence: Variable gear ratio steering system absence Presence: Variable gear ratio steering system presence	-
   PCS Function ON/OFF State Stored	Storage condition of PCS ON/OFF condition when the PCS function is off and the engine switch is turned from off to on (IG)	Stored or Not Stored	Stored: Pre-collision system maintains off Not stored: Pre-collision system always turns on	"PCS Function ON/OFF State Stored" is a customizable item which can be set using the Techstream.
   PCS Warning Timing State Stored 2	Storage condition of warning sensitivity setting when the PCS function is on and the engine switch is turned from off to on (IG)	Stored or Not Stored	Stored: Sensitivity settings are maintained as previous value Not stored: Sensitivity is reset to default setting	"PCS Function ON/OFF State Stored 2" is a customizable item which can be set using the Techstream.
   PCS Warning Timing State Stored 3	Storage condition of warning sensitivity setting when the PCS function is off and the engine switch is turned from off to on (IG)	Stored or Not Stored	Stored: Sensitivity settings are maintained as previous value Not stored: Sensitivity is reset to default setting	"PCS Function ON/OFF State Stored 3" is a customizable item which can be set using the Techstream.
   PCS Warning Timing State Stored 1	Storage condition of warning sensitivity setting when the PCS function is turned from off to on while the engine switch is on (IG)	Stored or Not Stored	Stored: Sensitivity settings are maintained as previous value Not stored: Sensitivity is reset to default setting	"PCS Function ON/OFF State Stored 1" is a customizable item which can be set using the Techstream.

HINT: 

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

1. Perform Active Test according to the display on the Techstream.

   Body Electrical > Pre-Collision System > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   PCS Warning Buzzer	Sounds the skid control buzzer	Active / Not Active	Test possible with engine switch on (IG), vehicle stopped