Data List / Active Test

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. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / (desired system) / Data List.
5. According to the display on the Techstream, read the Data List.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Shift P Signal*	Shift position (P)/ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	Use this item to determine if the shift position switch is malfunctioning.
   Steering Unlock Switch	State of steering unlock sensor signal output from steering lock actuator assembly/ON or OFF	ON: Steering unlocked OFF: Steering locked	When the shift lever is in P (for Automatic Transaxle) and the engine switch is off, if any door is opened or closed, the steering is locked. When the electrical key transmitter is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off.
   Stop Light Switch1*	State of brake pedal/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is "OFF". When this item is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time.
   Start Switch1	Condition of engine switch contact 1/ON or OFF	ON: Engine switch pressed OFF: Engine switch not pressed	If the engine switch is pressed for a short time, the display may not change. Use this item to determine whether the engine switch input signal is malfunctioning.
   Start Switch2	Condition of engine switch contact 2/ON or OFF	ON: Engine switch pressed OFF: Engine switch not pressed	This is the backup for engine switch contact 1. This item behaves the same way as engine switch contact 1.
   Neutral SW/ Clutch SW	Shift position (P, N) (for Automatic Transaxle) or state of clutch pedal (for Manual Transaxle)/ON or OFF	ON: Shift lever in P or N (for Automatic Transaxle) or clutch pedal depressed (for Manual Transaxle) OFF: Shift lever not in P or N (for Automatic Transaxle) or clutch pedal released (for Manual Transaxle)	Use this item to help determine if the park/neutral position switch (for Automatic Transaxle) or clutch switch (for Manual Transaxle) is malfunctioning. The engine cannot be started when this item is "OFF".
   Latch Circuit	Condition of IG related backup circuit (IG hold circuit)/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	This item behaves in almost the same way as the IG1 and IG2 relays. This item displays "OFF" when the engine switch is on (ACC).
   IG1 Relay Monitor(Outside)	IG1 relay activation/ON or OFF	ON: IG1 relay on OFF: IG1 relay off	As this is the IG1 relay ON signal, this item displays "OFF" when the engine switch is on (ACC).
   IG1 Relay Monitor(Inside)	IG1 relay activation/ON or OFF	ON: IG1 relay on OFF: IG1 relay off	As this is the IG1 relay ON signal, this item displays "OFF" when the engine switch is on (ACC).
   IG2 Relay Monitor(Outside)	IG2 relay activation/ON or OFF	ON: IG2 relay on OFF: IG2 relay off	As this is the IG2 relay ON signal, this item displays "OFF" when the engine switch is on (ACC).
   IG2 Relay Monitor(Inside)	IG2 relay activation/ON or OFF	ON: IG2 relay on OFF: IG2 relay off	As this is the IG2 relay ON signal, this item displays "OFF" when the engine switch is on (ACC).
   Starter Request Signal	Condition of engine start command signal/ON or OFF	ON: Engine switch pressed and held while carrying electrical key transmitter with shift lever in P (for Automatic Transaxle) and brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle) depressed OFF: Engine switch released after approximately 1 second elapses	This item displays "ON" when cranking the engine. The engine cannot be started when this item is "OFF".
   ACC Relay Monitor	ACC relay activation/ON or OFF	ON: ACC relay on OFF: ACC relay off	This item displays "ON" when the engine switch is on (ACC). This item displays "OFF" when cranking the engine.
   Engine Condition	Condition of engine/Stop or Run	Run: Engine running Stop: Engine stopped	-
   Vehicle Speed Signal	Vehicle moving or stationary/Stop or Run	Run: Vehicle moving at 5 km/h (3 mph) or more Stop: Vehicle stopped	-
   Power Supply Condition	State of power supply/IG2 ON, ST ON, All OFF, IG1 ON or ACC ON	All OFF: Engine switch off (power supply off) ACC ON: Engine switch on (ACC) (ACC relay on) IG1 ON: Engine switch on (IG) (IG1 relay on) IG2 ON: Engine switch on (IG) (IG2 relay on) ST ON: Cranking engine (ST request signal on)	Since IG1 ON and IG2 ON turn "on" at approximately the same time, IG1 ON may not be displayed (IG1 ON turns on for a very short time).
   Powertrain Type	Vehicle identification/HV-AT, Cnv-MT, Cnv-AT, Cnv-MMT, S&S-MT, S&S-AT or S&S-MMT	Cnv-AT: Conventional A/T (A/T vehicle not equipped with hybrid system) Cnv-MT: Conventional M/T (M/T vehicle not equipped with hybrid system)	-
   IG1 Circuit	IG1 relay coil circuit malfunction/OK or NG	OK: Circuit normal NG: Circuit malfunctioning	Use this item when determining whether the IG1 relay is malfunctioning. The engine cannot be started when this item displays "NG".
   IG2 Circuit	IG2 relay coil circuit malfunction/OK or NG	OK: Circuit normal NG: Circuit malfunctioning	Use this item when determining whether the IG2 relay is malfunctioning. The engine cannot be started when this item displays "NG".
   Starter SW Sig Mismatch	Engine switch signal 1 and 2 mismatch/Yes or No	Yes: Switch malfunctioning (engine switch signal 1 and 2 do not match) No: Switch normal	The engine can be started even if this item displays "Yes".
   Park Signal Mismatch*	Shift position (P) signal malfunction/Yes or No	Yes: Signal malfunction (CAN communication and direct line signal do not match) No: Signal normal	The engine cannot be started when this item displays "Yes".
   Str Lock/Unlock Wait T-Out	Steering unlock malfunction/Yes or No	Yes: Unlock malfunctioning (Lock bar stuck, etc.) No: Unlock normal	The engine cannot be started when this item displays "Yes".
   Key Certif Wait T-Out	Verification malfunction/Yes or No	Yes: Verification error (detected when ID code from electrical key transmitter and ID stored in certification ECU [smart key ECU assembly] do not match) No: Verification normal	The engine cannot be started when this item displays "Yes".
   Number of Diagnosis Code	Number of DTCs/0 to 255	-	-

   • *: for Automatic Transaxle
   Fig 1: Power Control Data List (Automatic Transmission)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Get into the vehicle while carrying the electrical key transmitter. With the engine switch off and the shift lever in P, perform the following procedures and check the power source mode. 

   *1: Without depressing the brake pedal, press the engine switch and check that the power source mode turns on (ACC).

   *2: Without depressing the brake pedal, press the engine switch and check that the power source mode turns on (IG).

   *3: Depress the brake pedal (the stop light switch turns on).

   *4: With the brake pedal depressed, press the engine switch and check that the engine starts.

   *5: Press the engine switch and check that the power source mode turns off.

   *6: Release the brake pedal.

   *7: Open a door.

   Fig 2: Power Source Data List (Manual Transaxle)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Get into the vehicle while carrying the electrical key transmitter. With the engine switch off, perform the following procedures and check the power source mode. 

   *1: Without depressing the clutch pedal, press the engine switch and check that the power source mode turns on (ACC).

   *2: Without depressing the clutch pedal, press the engine switch and check that the power source mode turns on (IG).

   *3: Depress the clutch pedal (the clutch start switch turns on).

   *4: With the clutch pedal depressed, press the engine switch and check that the engine starts.

   *5: Press the engine switch and check that the power source mode turns off.

   *6: Release the clutch pedal.

   *7: Open a door.

   SMART KEY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Ignition Switch	State of certification ECU (smart key ECU assembly) IG power supply input/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	This item displays "OFF" when the engine switch is on (ACC).
   #Codes	Number of DTCs/0 to 255	-	-
   Immobilizer	State of immobilizer system determined by certification ECU (smart key ECU assembly)/Set or Unset	Set: Engine immobilizer set (engine switch off) Unset: Engine immobilizer unset (engine switch on [ACC] or on [IG])	When the immobilizer cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is part of the problem. The engine cannot be started when this item displays "Set". HINT:  The state of the immobilizer (whether it is set or unset) can be determined through the certification ECU (smart key ECU assembly). If this item displays "Set", the communication between the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) can be determined to be normal. The security indicator light operation is only linked with the state of the immobilizer (set/unset), and is not related to the steering lock operation (lock/unlock). When the immobilizer is set, the security indicator light blinks.
   Steering Lock Sleep Cond	Steering lock ECU sleep condition/Yes or No	-	-
   Steering Lock Start Cond	Transmission state of steering lock ECU wake up signal/Yes or No	Yes: Wake up signal transmitted No: Wake up signal not transmitted	-
   Engine Start Condition	State of engine start permission signal determined by steering lock actuator assembly (steering lock ECU) and sent to certification ECU (smart key ECU assembly)/OK or NG	OK: Engine start permitted NG: Engine start prohibited	When this item displays "OK", the certification ECU (smart key ECU assembly) has received an unlock confirmation signal from the steering lock ECU and has permitted fuel injection and engine combustion. The engine cannot be started when this item displays "NG".
   Sensor Value	Malfunction history of position sensor in steering lock actuator/OK or NG(Past)	OK: No record of lock/unlock sensor malfunction in steering lock actuator NG(Past): Record of lock/unlock sensors in steering lock actuator turning on at same time exists	When this item displays "NG", the sensor inside the steering lock actuator may be malfunctioning, or there may be a mechanical malfunction.
   Power Supply Short	Record of malfunction of signal sent to steering lock actuator assembly (motor) from power source control ECU (short circuit)/OK or NG(Past)	OK: No record of malfunction (short circuit) NG(Past): Record of malfunction (short circuit) exists	This item records malfunctions in the circuit between the power source control ECU and steering lock actuator assembly (motor).
   Power Supply Open	Record of malfunction of signal sent to steering lock actuator assembly (motor) from power source control ECU (open circuit) (DTC B2782 stored)/OK or NG(Past)	OK: No record of malfunction (open circuit) NG(Past): Record of malfunction (open circuit) exists	This item records malfunctions in the circuit between the power source control ECU and steering lock actuator assembly (motor).
   Motor Driver Short	Record of malfunction of motor activation circuit in steering lock actuator assembly (short circuit) (DTC B2781 stored)/OK or NG(Past)	OK: No record of malfunction (short circuit) NG(Past): Record of malfunction (short circuit) exists	This item records malfunctions in the motor activation circuit inside the steering lock actuator assembly (short circuit).
   Motor Driver Open	Record of malfunction of motor activation circuit in steering lock actuator assembly (open circuit) (DTC B2781 stored)/OK or NG(Past)	OK: No record of malfunction (open circuit) NG(Past): Record of malfunction (open circuit) exists	This item records malfunctions in the motor activation circuit inside the steering lock actuator assembly (open circuit).
   Lock/Unlock Receive	Reception state of steering lock or unlock request signal from certification ECU (smart key ECU assembly)/Yes or No	Yes: Record of receiving lock or unlock request signal exists No: No record of receiving lock or unlock request signal	-
   Lock Bar Stuck Error	Record of lock bar not properly unlocking after being commanded to unlock for certain amount of time/OK or NG(Past)	OK: No record of stuck lock bar NG(Past): Record of stuck lock bar exists	-
   Push Start Error	Record of malfunction of push-start function due to steering lock actuator/OK or NG(Past)	OK: No record of push-start function malfunction NG(Past): Record of push-start function malfunction exists	-
   IG2 Status	State of steering lock actuator assembly IG power supply input (direct line)/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	As this is the IG2 relay ON signal, this item displays "OFF" when the engine switch is on (ACC).
   IG(Lin)	State of IG signal from LIN communication recognized by steering lock actuator assembly/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	The display is the same as "IG2 Status".
   Engine Start Request	Reception state of engine start permission signal determined by steering lock actuator assembly and sent to certification ECU (smart key ECU assembly)/OK or NG	OK: Receiving signal NG: Not receiving signal	When this item displays "OK", the certification ECU (smart key ECU assembly) has received an unlock confirmation signal from the steering lock ECU and has permitted fuel injection and engine combustion. The engine cannot be started when this item displays "NG".
   S Code Check	Verification result between certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU)/OK or NG	OK: Verification result normal NG: Verification result abnormal	When a malfunction is present: The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is not registered or the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU) is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started).
   L Code Check	Verification result between ID code box (immobilizer code ECU) and steering lock actuator assembly/OK or NG	OK: Verification result normal NG: Verification result abnormal	When a malfunction is present: The ID code for the ID code box (immobilizer code ECU) or steering lock actuator assembly is not registered or the ID code box (immobilizer code ECU) or steering lock actuator is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started).
   Unlock Request Receive	Reception state of steering unlock command signal determined by certification ECU (smart key ECU assembly) and sent to ID code box (immobilizer code ECU)/OK or NG HINT:  The reception state is maintained for 10 seconds. When 10 seconds or more elapse after receiving the signal, the item changes to "NG".	OK: Within 10 seconds of turning engine switch on (IG) or on (ACC) or starting engine NG: Except above	If the unlock signal has not been received, the engine cannot be started. If this item does not change to "OK" even though the steering unlock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
   Lock Request Receive	Reception state of steering lock command signal determined by certification ECU (smart key ECU assembly) and sent to ID code box (immobilizer code ECU)/OK or NG HINT:  The reception state is maintained for 10 seconds. When 10 seconds or more elapse after receiving the signal, the item changes to "NG".	OK: Within 10 seconds of opening any door with engine switch off and shift lever in P (for Automatic Transaxle) NG: Except above	If this item does not change to "OK" even though the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
   S Code Check(Past)	Verification result between certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) (Past)/OK or NG(Past)	OK: Verification result normal NG(Past): Verification result abnormal (Past)	-
   L Code Check(Past)	Verification result between ID code box (immobilizer code ECU) and steering lock actuator assembly (Past)/OK or NG(Past)	OK: Verification result normal NG(Past): Verification result abnormal (Past)	-
   Steering Lock	State of whether steering lock ECU has determined steering is locked/Set or Unset	Set: Steering locked Unset: Steering unlocked	If this item displays "Unset", the steering does not lock.
   Steering Unlock	State of whether steering lock ECU has determined steering is unlocked/Set or Unset	Set: Steering unlocked Unset: Steering locked	If this item displays "Unset", the steering does not unlock (engine cannot be started).

   Fig 3: Steering Lock Data List Display Example

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Get into the vehicle while carrying the electrical key transmitter. With the engine switch off, the shift lever in P (for Automatic Transaxle) and all the doors closed, perform the following procedures and check the power source mode. 

   *1: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), press the engine switch and check that the power source mode turns on (ACC).

   *2: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), press the engine switch and check that the power source mode turns on (IG).

   *3: Press the engine switch and check that the power source mode turns off.

   *4: Without depressing the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle), open the driver side door and check that the steering locks.

   STARTING CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Starter SW	Starter activation request/ON or OFF	ON: Starter activation requested OFF: Starter activation not requested	When there is a malfunction, the engine cannot be cranked.
   Shift Position P or N	Condition of park/neutral position switch (for Automatic Transaxle) or state of clutch pedal (for Manual Transaxle)/ON or OFF	ON: Shift lever in P or N (for Automatic Transaxle) or clutch pedal depressed (for Manual Transaxle) OFF: Shift lever not in P or N (for Automatic Transaxle) or clutch pedal released (for Manual Transaxle)	When there is a malfunction, the engine cannot be cranked.
   Starter Relay	Starter relay voltage monitor/ON or OFF	ON: ST relay on OFF: ST relay off	When there is a malfunction, the engine cannot be cranked.
   Starting Control SW	Starter request signal monitor/ON or OFF	ON: Starting control switch on OFF: Starting control switch off	When there is a malfunction, the engine cannot be cranked.
   Ignition	State of IG2 according to power source control ECU/ON or OFF	ON: IG2 relay on OFF: IG2 relay off	This item displays "OFF" when the engine switch is on (ACC).
   Engine Speed	Engine speed/0 to 16383 r/min	Changes according to engine speed	-
   Number of DTCs	Number of DTCs/0 to 255	-	-

   Fig 4: Identifying Engine Start Graph

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   *: With the engine switch on (IG), the shift lever in P and the brake pedal (for Automatic Transaxle) or clutch pedal (for Manual Transaxle) depressed, press the engine switch and check that the engine starts.

   COMBINATION METER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Vehicle Speed Meter	Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost same as actual vehicle speed	-

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. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / (desired system) / Active Test.
5. According to the display on the Techstream, perform the Active Test.