Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM100000001DW0B
Model Year Start: 2019 Model: Camry Prod Date Range: [08/2018 - 09/2019]
Title: A25A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY; 2019 MY Camry [08/2018 - 09/2019]

VEHICLE CONTROL HISTORY

DESCRIPTION (SFI SYSTEM)

  • Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
  • If the customer states that the engine stalled or will not start, it may be possible to diagnose the cause of the malfunction by checking the vehicle history information and freeze frame data.
  • The number of possible stored Freeze Frame Data sets, whether multi Freeze Frame Data is available, the number of freeze frame points, Freeze Frame Data items, the ECU internal range, etc., is different depending on the stored group.
  • The stored data items for Vehicle Control History Freeze Frame Data are different depending on the stored group. When the value of a data item does not change across all points, only the value of the detection point will be displayed. The contents of the Freeze Frame Data is almost the same as that of the Data List.

    Click here 2019 MY Camry [08/2018 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: DATA LIST / ACTIVE TEST

PRECAUTIONS (SFI SYSTEM)

  • As Vehicle Control History may be overwritten whenever the trigger conditions are met, make sure to save Vehicle Control History before performing any inspections.
  • As Vehicle Control History may be stored when performing an Active Test, learning, etc., make sure to clear the Vehicle Control History before returning the vehicle to the customer.

CHECK VEHICLE CONTROL HISTORY (SFI SYSTEM)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB).

Powertrain > Engine > Utility

Tester Display

Vehicle Control History (RoB)

HINT:

It is also possible to display Vehicle Control History during the Health Check, if "Store All Data" is selected.

Vehicle Control History Item

Code

Item

Trigger Description

Stored Group

Reference Inspection Procedure

Link

X0800

Engine Stall

Detection Condition (Engine Stall)

  • Prerequisite Conditions: The engine is running (after engine is judged to be difficult to start)
  • Detection Conditions: The engine speed is decreases to 200 rpm or less, or stops
  • Duration: 0.5 seconds or more

02

Flow chart [Engine Stalls] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Stalls

The engine stalled due to factors other than the operation of the ignition or starter switch assembly*1 or engine switch*2

X0803

Engine Stall (Compression Leakage)

It is judged that the engine stalled due to compression leakage

02

Flow chart [Engine Stalls] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Stalls

X0810

Engine Difficult to Start (Engine Starting Time Long)

Detection Condition (Engine Starting Time Long)

  • Prerequisite Conditions: STA signal is ON
  • Detection Conditions: The engine speed is less than 500 rpm for a long period of time (the starting time is long or the engine does not start)
  • Duration: Refer to Engine Difficult to Start Duration Judgment Region illustration

05

Flow chart [Engine Difficult to Start] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

The engine speed decreases or the engine stalls immediately after starting

X0811

Engine Difficult to Start (Engine Stall Immediately After Starting)

Detection Condition (Engine Stall Immediately After Starting)

  • Prerequisite Conditions: Within 2 seconds after the engine has started (engine speed is 500 rpm or more) and the engine coolant temperature is -15°C (5°F) or more
  • Detection Conditions: The engine speed decreases to 200 rpm or less (immediately after starting, the engine speed decreases or the engine stalls)
  • Duration: -

05

Flow chart [Engine Difficult to Start] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

The engine speed decreases or the engine stalls immediately after starting

X0812

Engine Difficult to Start (Immobiliser)

Engine difficult to start due to immobiliser

05

Flow chart [Engine Difficult to Start] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

X0821

Rough Idle #1

Detection Condition (Rough Idle)

  • Prerequisite Conditions: The engine is idling with the vehicle is stopped and the accelerator pedal is fully released
  • Detection Conditions: It is judged that combustion is unstable due to the instantaneous change in engine speed for each cylinder
  • Duration: Depending on the combustion status, between 2 and 10 seconds

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Idling is rough due to unstable combustion in the No. 1 cylinder

X0822

Rough Idle #2

Idling is rough due to unstable combustion in the No. 2 cylinder

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X0823

Rough Idle #3

Idling is rough due to unstable combustion in the No. 3 cylinder

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X0824

Rough Idle #4

Idling is rough due to unstable combustion in the No. 4 cylinder

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X082A

Rough Idle (Plural Cylinders)

Idling is rough due to multiple cylinders

As more than one cylinder is affected, the EGR system, fuel system, etc. is suspected

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X082D

Rough Idle (Compression Leakage)

Idling is judged to be rough due to compression leakage

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X082E

Rough Idle (Low Frequency)

Slight rough idle symptoms are detected 3 times in 10 trips

HINT:

As the rough idle symptoms are slight, if rough idle codes other than rough idle (low frequency) code X082E are stored, this code will not be stored.

03

Flow chart [Rough Idling] step 3

2018 - 2019 MY Camry [03/2017 - 09/2019]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

X0850

Engine Oil Pressure Low

The engine oil pressure is low

05

-

-

X0851

Engine Coolant Temperature High

The engine coolant temperature is high (overheating)

05

-

-

X0852

Engine RPM High

The engine speed is high (over revving)

05

-

-

X0854

Engine Coolant Temperature High (Low Voltage)

The engine coolant temperature is high (overheating) due to a low engine water pump assembly voltage causing the engine water pump assembly to stop

05

-

-
  • *1: w/o Smart Key System
  • *2: w/ Smart Key System
Engine Difficult to Start Duration Judgment Region (Engine Starting Time Long) (X0810)

Stored Data

Stored Group

Number of Records

Number of Freeze Frame Points

Multi Freeze Frame Data Sampling Period

Note

02

2 codes

HINT:

  • If the detection conditions for a code that is not currently stored are met, the code will be stored.
  • If the detection conditions for a code that is currently stored are met again in the same trip, the code will not be overwritten.
  • If the detection conditions for a code that is currently stored are met again in a different trip, the code will be overwritten.

12 points (1 point at detection + 8 points before detection + 3 points after detection)

HINT:

When the value of a data item does not change across all points, only the value at the detection point will be displayed.

0.5 seconds

The data can be cleared by using the Techstream or by disconnecting the cable from the negative (-) battery terminal.

03

1 code

HINT:

  • If the detection conditions for a code that is not currently stored are met, the code will be stored.
  • If the detection conditions for a code that is currently stored are met again in the same trip, the code will not be overwritten.
  • If the detection conditions for a code that is currently stored are met again in a different trip, the code will be overwritten.
  • If rough idle codes other than Rough Idle (Low Frequency) code X082E are stored, data for code X082E will not be overwritten.

7 points (1 point at detection + 6 points before detection)

HINT:

When the value of a data item does not change across all points, only the value at the detection point will be displayed.

0.5 seconds

The data can be cleared by using the Techstream or by disconnecting the cable from the negative (-) battery terminal.

05

4 codes

HINT:

  • If the detection conditions for a code that is not currently stored are met, the code will be stored.
  • If the detection conditions for a code that is currently stored are met again in the same trip, the code will not be overwritten.
  • If the detection conditions for a code that is currently stored are met again in a different trip, the code will be overwritten.
  • If 4 codes are stored and the detection conditions for a code that is not currently stored are met, the oldest code will be overwritten.
    • Example 1: If X0810, X0811, X0812 and X0850 are stored and X0811 is to be stored in a different trip, X0811 will be overwritten as it is the same code.
    • Example 2: If X0810, X0811, X0812 and X0850 are stored and X0852 is to be stored in a different trip, X0810 will be overwritten as it is the oldest code.

1 point (multi freeze frame data not available)

-
  • The data can be cleared by using the Techstream.
  • The data cannot be cleared by disconnecting the cable from the negative (-) battery terminal.

HINT:

  • Multi Freeze Frame Data makes it possible to display the engine condition (ECU data) both before and after the trigger detection point.
  • The number of available points differs depending on the stored group.
  • When the value of a data item does not change across all points, only the value at the detection point will be displayed.

HINT:

Only 1 measurement point can be displayed for stored group 05 Freeze Frame Data.

Vehicle Control History Freeze Frame Data

CLEAR VEHICLE CONTROL HISTORY (SFI SYSTEM)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Utility / Vehicle Control History (RoB) / Clear.

NOTICE:

By performing this procedure, all stored Vehicle Control History items will be cleared.

VEHICLE CONTROL HISTORY (AIRBAG SYSTEM)

HINT:

A part of the control history can be confirmed using the vehicle control history.

Click here 2018 - 2020 MY Camry [03/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: VEHICLE CONTROL HISTORY