Toyota Avalon (XX50): Check Mode Procedure. Data List / Active Test. Definition Of Terms

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Drivetrain / Ua80e Automatic Transmission / Transaxle / Automatic Transaxle System / Check Mode Procedure. Data List / Active Test. Definition Of Terms

Check Mode Procedure

CHECK MODE PROCEDURE

DESCRIPTION

(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all of the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic.

CHECK MODE PROCEDURE

(a) Make sure that the following conditions are met:

The battery voltage is 11 V or more.
The throttle valve is fully closed.
The shift lever is in P or N.
The air conditioning is off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Transmission / Utility / Check Mode.

Powertrain > Transmission > Utility

Tester Display
Check Mode

(f) Change the ECM to check mode and check that the MIL flashes as shown in the illustration.

NOTICE:

All DTCs and freeze frame data will be cleared if: 1) the Techstream is used to change the ECM from normal mode to check mode or vice versa; or 2) during check mode, the engine switch is turned from on (IG) to off.

Before entering check mode, make a note of the DTCs and freeze frame data.

(g) Start the engine. The MIL should turn off after the engine starts.

(h) Perform Monitor Drive Pattern for the ECT.

Click here

(Or, simulate the conditions of the malfunction described by the customer.)

(i) After simulating the malfunction conditions, use the Techstream to check for DTCs and freeze frame data.

Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

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.

(a) Warm up the engine.

(b) Turn the engine switch off.

(d) Turn the engine switch on (IG).

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Transmission / Data List.

(g) Read the Data List according to the display on the Techstream.

Powertrain > Transmission > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Total Distance Traveled	Total distance traveled	Min.: 0 Max.: 16777215	-	-
Total Distance Traveled - Unit	Unit for Total Distance Traveled	km or mile	-	-
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.
Engine Speed	Engine Speed	Min.: 0 rpm Max.: 16383 rpm	600 to 700 rpm: Engine idling (shift lever in N, engine warmed up and A/C off)	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Calculate Load	Load calculated by ECM	Min.: 0% Max.: 100%	-	This is the engine load calculated based on the estimated intake manifold pressure. Calculate Load = Actual intake manifold pressure / maximum intake manifold pressure x 100 (%) (For example, when the actual intake manifold pressure is the same as ambient pressure, Calculate Load is 100%.)
Coolant Temperature	Engine coolant temperature	Min.: -40°C (-40°F) Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. HINT: After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates higher than 135°C (275°F).
Intake Air Temperature	Intake air temperature	Min.: -40°C (-40°F) Max.: 140°C (284°F)	Equivalent to temperature at location of mass air flow meter sub-assembly	After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is lower than -40°C (-40°F), or higher than 128°C (262°F), the sensor circuit is open or shorted.
Ambient Temperature	Ambient temperature	Min.: -40°C (-40°F) Max.: 215°C (419°F)	Equivalent to ambient temperature	This is the ambient temperature. HINT: After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.
Engine Run Time	Engine run time	Min.: 0 seconds Max.: 65535 seconds	Time after engine start	-
Battery Voltage	Battery voltage	Min.: 0 Max.: 65.5 V	11 to 14 V: Engine switch on (IG)	If 11 V or less, characteristics of some electrical components may change.
BATT Voltage	Battery voltage	Min.: 0 Max.: 79.998 V	11 to 14 V: Engine switch on (IG)	-
Glow Indicator Supported	Glow indicator supported	Unsupp or Supp	-	-
Throttle Position Sensor No.1 Voltage %	Absolute No. 1 throttle position sensor	Min.: 0% Max.: 100%	10 to 22%: Accelerator pedal fully released 64 to 96%: Accelerator pedal fully depressed (engine running)	The No. 1 throttle position sensor output is converted using 5 V = 100%. HINT: If there are no throttle position sensor DTCs stored, it is possible to conclude that the throttle position sensor system is normal.
Starter SW	Starter signal	ON or OFF	ON: Starter operating OFF: Starter not operating	-
Neutral Position SW	Park/neutral position switch status	ON or OFF	ON: Shift lever in P or N OFF: Shift lever not in P or N	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
Stop Light SW	Stop light switch status	ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
Cruise Main SW	Cruise control main switch status	ON or OFF	ON: Cruise control main switch pushed OFF: Cruise control main switch not pushed	-
Complete Parts Monitor	Comprehensive component monitor	Not Avl or Avail	-	*1
Fuel System Monitor	Fuel system monitor	Not Avl or Avail	-	*1
Fuel System Monitor Result	Fuel system monitor	Compl or Incmpl	-	*1
Misfire Monitor	Misfire monitor	Not Avl or Avail	-	*1
EGR/VVT Monitor	EGR/VVT monitor	Not Avl or Avail	-	*1
EGR/VVT Monitor Result	EGR/VVT monitor	Compl or Incmpl	-	*1
A/F (O2) Sensor Heater Monitor	O2S (A/FS) heater monitor	Not Avl or Avail	-	*1
A/F (O2) Sensor Heater Monitor Result	O2S (A/FS) heater monitor	Compl or Incmpl	-	*1
A/F (O2) Sensor Monitor	O2S (A/FS) monitor	Not Avl or Avail	-	*1
A/F (O2) Sensor Monitor Result	O2S (A/FS) monitor	Compl or Incmpl	-	*1
Secondary Air Injection System Monitor	Secondary air injection system monitor	Not Avl or Avail	-	*1
Secondary Air Injection System Monitor Result	Secondary air injection system monitor	Compl or Incmpl	-	*1
EVAP Monitor	EVAP monitor	Not Avl or Avail	-	*1
EVAP Monitor Result	EVAP monitor	Compl or Incmpl	-	*1
Heated Catalyst Monitor	Heated catalyst monitor	Not Avl or Avail	-	*1
Heated Catalyst Monitor Result	Heated catalyst monitor	Compl or Incmpl	-	*1
Catalyst Monitor	Catalyst monitor	Not Avl or Avail	-	*1
Catalyst Monitor Result	Catalyst monitor	Compl or Incmpl	-	*1
Component Monitor ENA (Current)	Comprehensive component monitor	Unable or Enable	-	*2
Component Monitor Result (Current)	Comprehensive component monitor	Compl or Incmpl	-	*2
Fuel System Monitor ENA (Current)	Fuel system monitor	Unable or Enable	-	*2
Fuel System Monitor Result (Current)	Fuel system monitor	Compl or Incmpl	-	*2
Misfire Monitor ENA (Current)	Misfire monitor	Unable or Enable	-	*2
Misfire Monitor Result (Current)	Misfire monitor	Compl or Incmpl	-	*2
EGR/VVT Monitor ENA (Current)	EGR monitor	Unable or Enable	-	*2
EGR/VVT Monitor Result (Current)	EGR monitor	Compl or Incmpl	-	*2
O2 Sensor Heater ENA (Current)	O2S (A/FS) heater monitor	Unable or Enable	-	*2
O2 Sensor Heater Monitor Result (Current)	O2S (A/FS) heater monitor	Compl or Incmpl	-	*2
A/F (O2) Sensor Monitor ENA (Current)	O2S (A/FS) monitor	Unable or Enable	-	*2
A/F (O2) Sensor Monitor Result (Current)	O2S (A/FS) monitor	Compl or Incmpl	-	*2
Secondary Air Injection System Monitor ENA (Current)	Secondary air injection system monitor	Unable or Enable	-	*2
Secondary Air Injection System Monitor Result (Current)	Secondary air injection system monitor	Compl or Incmpl	-	*2
EVAP Monitor ENA (Current)	EVAP monitor	Unable or Enable	-	*2
EVAP Monitor Result (Current)	EVAP monitor	Compl or Incmpl	-	*2
Heated Catalyst Monitor ENA (Current)	Heated catalyst monitor	Unable or Enable	-	*2
Heated Catalyst Monitor Result (Current)	Heated catalyst monitor	Compl or Incmpl	-	*2
Catalyst Monitor ENA (Current)	Catalyst monitor	Unable or Enable	-	*2
Catalyst Monitor Result (Current)	Catalyst monitor	Compl or Incmpl	-	*2
TC Terminal	TC terminal Status	ON or OFF	-	-
MIL	MIL status	ON or OFF	ON: MIL ON	-
MIL ON Run Distance	MIL ON run distance	Min.: 0 km (0 mile) Max.: 65535 km (40723 mile)	Distance driven since DTC detected	-
Running Time from MIL ON	Running time from MIL ON	Min.: 0 min Max.: 65535 min	Equivalent to running time since MIL illuminated	-
Time after DTC Cleared	Time after DTC cleared	Min.: 0 min Max.: 65535 min	Equivalent to time since DTCs cleared	-
Distance from DTC Cleared	Distance after DTC cleared	Min.: 0 km (0 mile) Max.: 65535 km (40723 mile)	Equivalent to time since DTCs cleared	-
Warmup Cycle Cleared DTC	Warm-up cycle after DTC cleared	Min.: 0 Max.: 255	Number of warm-up cycles since DTCs cleared	-
OBD Requirements	OBD requirement	-	OBD II (California ARB)	-
Number of Emission DTC	Emission related DTCs	Min.: 0 Max.: 127	-	-
Accel Position from EFI	Absolute Accelerator Pedal Position	Min.: 0.0% Max.: 127.5%	-	-
NT Sensor Speed	Input shaft speed	Min.: 0 rpm Max.: 12750 rpm	Equal to engine speed: Lock-up on (after warming up engine) Nearly equal to engine speed: Lock-up off (engine idling with shift lever in N)	Data is displayed in increments of 50 rpm
NC Sensor Speed	Counter gear speed	Min.: 0 rpm Max.: 12750 rpm	-	-
Shift SW Status (P Range)	Park/neutral position switch status	ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
Shift SW Status (R Range)	Park/neutral position switch status	ON or OFF	ON: Shift lever in R OFF: Shift lever not in R	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
Shift SW Status (N Range)	Park/neutral position switch status	ON or OFF	ON: Shift lever in N OFF: Shift lever not in N	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
Shift SW Status (N,P Range)	Park/neutral position switch status	ON or OFF	ON: Shift lever in P or N OFF: Shift lever not in P or N	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
Shift SW Status (N,P Range) Supported	Status of park/neutral position switch (N or P) supported	Unsupp or Supp	Supp	-
Shift SW Status (S Range)	Sport (S) mode select switch status	ON or OFF	ON: Shift lever in S, "+" or "-" OFF: Shift lever not in S, "+" or "-"	-
Shift SW Status (D Range)	Park/neutral position switch status	ON or OFF	ON: Shift lever in D or S OFF: Shift lever not in D or S	When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the park/neutral position switch assembly or shift cable may be incorrect. HINT: If a malfunction still occurs even after adjusting these parts, refer to DTC P070513 or P070562*3.
A/T Oil Temperature No.1	ATF temperature sensor value	Min.: -40°C (-40°F) Max.: 150°C (302°F)	Approximately 80°C (176°F): After stall speed test Equal to ambient temperature: When engine is cold	If value is -40°C (-40°F) or 150°C (302°F), ATF temperature sensor circuit is open or shorted
ATF Thermal Degradation Estimate	Estimated value of ATF thermal degradation	Min.: 0 Max.: 65535	-	If 50000 or more is displayed, thermal degradation of the ATF is suspected. Perform ATF Thermal Degradation Estimate Reset after replacing the ATF.
NT Sensor Voltage	NT sensor voltage	Min.: 0.000 V Max.: 4.999 V	0.1 to 1.9 V: Engine idling	-
NC Sensor Voltage	NC sensor voltage	Min.: 0.000 V Max.: 4.999 V	0.1 to 1.9 V: Engine idling	-
Lock Up Status	Lock up	ON or OFF	ON: Lock-up operating OFF: Lock-up not operating	-
Shift Status	ECM gear shift command	1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th	Same as actual gear	-
Solenoid (SLT)	Solenoid (SLT) valve status	ON or OFF	ON: Solenoid (SLT) valve operating OFF: Solenoid (SLT) valve not operating	-
Solenoid (SLU)	Solenoid (SLU) valve status	ON or OFF	ON: Solenoid (SLU) valve operating OFF: Solenoid (SLU) valve not operating	-
Solenoid (SL1)	Solenoid (SL1) valve status	ON or OFF	ON: Solenoid (SL1) valve operating OFF: Solenoid (SL1) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL2)	Solenoid (SL2) valve status	ON or OFF	ON: Solenoid (SL2) valve operating OFF: Solenoid (SL2) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL3)	Solenoid (SL3) valve status	ON or OFF	ON: Solenoid (SL3) valve operating OFF: Solenoid (SL3) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL4)	Solenoid (SL4) valve status	ON or OFF	ON: Solenoid (SL4) valve operating OFF: Solenoid (SL4) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL5)	Solenoid (SL5) valve status	ON or OFF	ON: Solenoid (SL5) valve operating OFF: Solenoid (SL5) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL6)	Solenoid (SL6) valve status	ON or OFF	ON: Solenoid (SL6) valve operating OFF: Solenoid (SL6) valve not operating	The value of this item only changes when performing an Active Test.
Solenoid (SL)	Solenoid (SL) valve status	ON or OFF	ON: Solenoid (SL) valve operating OFF: Solenoid (SL) valve not operating	-

HINT:

*1:
- Avail: The monitor is available on the vehicle.
- Not Avl: The monitor is not available on the vehicle.
- Incmpl / Compl: The item changes from Incmpl to Compl if the monitor was completed at least once at some time in the past. This item does not change when the engine switch is turned off. However, the item changes back to Incmpl when DTCs are cleared or cable is disconnected from the negative (-) battery terminal.
- Monitor result (mode 06): The last judgment result is output. This is not cleared when the engine switch is turned off, but is cleared when DTCs are cleared.
*2:
- Enable: The monitor is available on the vehicle.
- Unable: The monitor is not available on the vehicle.
- Incmpl / Compl: The item changes from Incmpl to Compl if the monitor was completed during the current trip. The item changes back to Incmpl when the engine switch is turned off.
- Monitor result (mode 06): The last judgment result is output. This is not cleared when the engine switch is turned off, but is cleared when DTCs are cleared. Therefore, only when DTCs are cleared at the beginning of a trip does the system monitor (Test Result [Monitor Status]) and monitor result (mode 06) match.
*3: Refer to DTC P070513 or P070562.
Click here

(h) Enter the following menus: Powertrain / Engine / Data List.

(i) Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Sport Shift Up SW	Sport shift up switch status	ON or OFF	ON: Shift lever held in "+" or "+" shift paddle switch operated OFF: Shift lever not held in "+" and "+" shift paddle switch released	-
Sport Shift Down SW	Sport shift down switch status	ON or OFF	ON: Shift lever held in "-" or "-" shift paddle switch operated OFF: Shift lever not held in "-" and "-" shift paddle switch released	-
Shift SW Status (S Range)	Sport (S) mode select switch status	ON or OFF	ON: Shift lever in S, "+" or "-" OFF: Shift lever not in S, "+" or "-"	-

ACTIVE TEST

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.

(a) Warm up the engine.

(b) Turn the engine switch off.

(d) Turn the engine switch on (IG).

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Transmission / Active Test.

(g) Perform the Active Test according to the display on the Techstream.

Powertrain > Transmission > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Activate the TC Terminal	Connects and disconnects terminals TC and TE1 (For activation of fluid temperature detection mode)	ON or OFF	[Vehicle Condition] Engine switch on (IG) Shift lever in P or N
Control the Shift Position	Operates the solenoid valves to allow gears to be selected manually	1st/2nd/3rd/4th/5th/6th/7th/8th Start/Stop	Can be used to check operation of the solenoid valves. [Vehicle Condition] Vehicle speed: 50 km/h (30 mph) or less
Activate the Solenoid (SLU)	Operates the solenoid (SLU) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SLT)	Operates the solenoid (SLT) valve to raise the line pressure	ON or OFF HINT: OFF: Line pressure up (when Active Test "Activate the solenoid (SLT)" is performed, ECM commands SLT solenoid to turn OFF) ON: No action (normal operation)	[Vehicle Condition] Engine running
Activate the Lock Up Solenoid	Operates the solenoid (SLU and SL) valve to control the automatic transaxle lock-up condition	ON or OFF	Can be used to check the operation of the solenoid (SLU and SL) valve. [Vehicle Condition] Vehicle speed: 60 km/h (36 mph) or more
Activate the Solenoid (SL)	Operates the solenoid (SL) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL1)	Operates the solenoid (SL1) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL2)	Operates the solenoid (SL2) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL3)	Operates the solenoid (SL3) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL4)	Operates the solenoid (SL4) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL5)	Operates the solenoid (SL5) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N
Activate the Solenoid (SL6)	Operates the solenoid (SL6) valve	ON or OFF	[Vehicle Condition] Engine switch on (IG) Engine stopped Shift lever in P or N

HINT:

Performing the Active Test "Activate the Solenoid (SLT)" allows the change in line pressure to be checked with SST installed to the automatic transaxle. The same SST is used for the Hydraulic Test.
Click here
Note that the pressure readings for the Active Test and Hydraulic Test are different.

Definition Of Terms

DEFINITION OF TERMS

Term	Definition
Monitor description	Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details).
Related DTCs	Group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.
Typical enabling condition	Preconditions that allow the ECM to detect malfunctions. With all preconditions satisfied, the ECM stores a DTC when the monitored value(s) exceeds the malfunction threshold(s).
Sequence of operation	The priority order that is applied to monitoring if multiple sensors and components are used to detect the malfunction. While one sensor is being monitored, the next sensor or component will not be monitored.
Required sensor/Components	The sensors and components that are used by the ECM to detect malfunctions.
Frequency of operation	The number of times that the ECM checks for malfunctions per driving cycle. "Once per driving cycle" means that the ECM detects a malfunction only once during a single driving cycle. "Continuous" means that the ECM detects a malfunction every time the enabling conditions are met.
Duration	The minimum time for which the ECM must detect a continuous deviation in the monitored value(s) in order to store a DTC. Timing begins after the "typical enabling conditions" are met.
Typical malfunction thresholds	Value beyond which the ECM will determine that there is a malfunction and stores a DTC.
MIL operation	MIL illumination timing after a malfunction is detected. "Immediate" means that the ECM illuminates the MIL the instant the ECM determines that there is a malfunction. "2 driving cycles" means that the ECM illuminates the MIL if the same malfunction is detected again in the next driving cycle.
Component operating range	Normal operation range of sensors and solenoids under normal driving conditions. Use these ranges as a reference. The ranges cannot be used to judge if a sensor or solenoid is defective or not.

Automatic Transaxle System

Diagnosis System. Diagnostic Trouble Code Chart. Dtc Check / Clear

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