Toyota Yaris: Pre-collision System / Data List / Active Test

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Vehicle Interior / Pre-collision / Pre-collision System / Data List / Active Test

DATA LIST / ACTIVE TEST

HINT:

Using the GTS 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.

NOTICE:

Data List values may experience significant variations due to small differences in measurement, different measurement environments, changes in the vehicle over time, etc., making it difficult to display a clear standard value for judgment. Due to this, it is possible that malfunctions could exist even when values are within the specified ranges.

DATA LIST

(a) Use the Data List to determine whether parts are good or bad, and to narrow down the possible locations of malfunctions.

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	Status of the pre-collision system OFF switch	ON / OFF	ON: Pre-collision system enabled OFF: Pre-collision system disabled	-
PBA Request	Pre-collision brake assist operation status (While a control command is present, assist control operates when the driver depresses the brake pedal.)	Not PBA Request / PBA Standby Request / PBA Request Level 1 / PBA Request Level 2	Not PBA Request: Pre-collision brake assist not requested PBA Standby Request: Low pre-collision brake assist requested PBA Request Level 1: Medium pre-collision brake assist requested PBA Request Level 2: High pre-collision brake assist requested	The value changes in accordance with the possibility of a collision. This item indicates the pre-collision brake assist standby status. Whether pre-collision brake assist is applied or not is determined by the depression of the brake pedal.
VGRS Activation Request	VGRS control activation start	Not Request / VGRS 1 Request / VGRS 2 Request / VGRS 3 Request	Not Request: VGRS 1 Request: Request 1 VGRS 2 Request: Request 2 VGRS 3 Request: Request 3	This item is displayed on the GTS for vehicles without the VGRS system, but cannot be used
Warning Brake Request	Warning brake operational status	ON / OFF	ON: Operating OFF: Not operating	-
FPB Request	Skid control ECU (brake actuator assembly) PCS brake request (pre-braking)	ON / OFF	ON: Operating OFF: Not operating	-
PB Request	Pre-collision brake request status	ON / OFF	ON: Operating OFF: Not operating	-
AVS Control Request	AVS control activation status	ON / OFF	ON: AVS control activated OFF: AVS control not activated	This item is displayed on the GTS for vehicles without AVS, but cannot be used
Prefill	Skid control ECU (brake actuator assembly) PCS brake assist standby	ON / OFF	ON: Operating OFF: Not operating	-
PBR Request	PBR operation status	ON / OFF	ON: Operating OFF: Not operating	-
PBH Request	PBH operation status	ON / OFF	ON: Operating OFF: Not operating	-
LPB Request	LPB operation status	ON / OFF	ON: Operating OFF: Not operating	-
PCS PBA Invalid	Pre-collision brake assist function status	ON / OFF	ON: Pre-collision brake assist function invalid OFF: Pre-collision brake assist function valid	-
PCS Warning Buzzer Invalid	PCS warning buzzer status	ON / OFF	ON: PCS warning buzzer function invalid OFF: PCS warning buzzer function valid	-
PCS PB Invalid	PCS brake function status	ON / 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 / 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 / OFF	ON: Emergency steering assist invalid 1 function invalid OFF: Emergency steering assist invalid 1 function valid	Cannot be used
Emergency Steering Assist Invalid 2	Emergency Steering Assist Invalid 2 status	ON / OFF	ON: Emergency steering assist invalid 2 function invalid OFF: Emergency steering assist invalid 2 function valid	Cannot be used
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 / OFF	ON: Sounding OFF: Not sounding	-
Vehicle Information (Conv/HV/EV)	Vehicle information (Conv/HV/EV)	Unknown / Conv / HV/EV	Unknown: Vehicle information not confirmed Conv: Conventional HV/EV: Hybrid vehicle	-
Vehicle Information (Powertrain Type)	Vehicle information (powertrain type)	Unknown / Conv / S&S / HV / PHV / EV / 1Motor HV / FCV	Displays the type of powertrain	-
Vehicle Information (Transmission Type)	Vehicle information (transmission type)	MT / AT / CVT / MMT / SMT / HV/EV - AT / Unknown	Displays the type of transmission	-
PCS Function ON/OFF State Stored	Pre-collision system on/off setting when the pre-collision system is turned off and the ignition switch is turned off and then to ON.	Stored / Not Stored	Stored: PCS function remains OFF Not Stored: PCS function resets to ON	"PCS Function ON/OFF State Stored" is a customizable item which can be set using the GTS.
PCS Warning Timing State Stored 2	Sensitivity setting when the pre-collision system is turned on and the ignition switch is turned off and then to ON.	Stored / Not Stored	Stored: Warning sensitivity is maintained at the previous value Not Stored: Warning sensitivity resets to "Mid"	"PCS Warning Timing State Stored 2" is a customizable item which can be set using the GTS.
PCS Warning Timing State Stored 3	Sensitivity setting when the pre-collision system is turned off and the ignition switch is turned off and then to ON.	Stored / Not Stored	Stored: Warning sensitivity is maintained at the previous value Not Stored: Warning sensitivity resets to "Mid"	"PCS Warning Timing State Stored 3" is a customizable item which can be set using the GTS.
PCS Warning Timing State Stored 1	Sensitivity setting of the pre-collision system when the pre-collision system is turned off and the then on with the ignition switch ON.	Stored / Not Stored	Stored: Warning sensitivity is maintained at the previous value Not Stored: Warning sensitivity resets to "Mid"	"PCS Warning Timing State Stored 1" is a customizable item which can be set using the GTS.

ACTIVE TEST

HINT:

Using the GTS 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.

(a) Use the Active Test to determine whether parts are good or bad, and to narrow down the possible locations of malfunctions.

Body Electrical > Pre-Collision System > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
PCS Warning Buzzer	Sounds the meter buzzer	Start / Stop	Test possible with ignition switch ON, vehicle stopped

Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the pre-collision system, a message will be displayed on the multi-information display and the pre-collision system will be disabled depending on the malfunction...

Diagnostic Trouble Code Chart

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