FREEZE FRAME DATA
DESCRIPTION
The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
HINT:
If it is impossible to reproduce the symptoms even though a DTC is stored, confirm the freeze frame data.
PENDING FREEZE FRAME DATA
HINT:
Pending freeze frame data is stored when a 2 trip DTC is first detected during the first trip.
(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 and ECT / Trouble Codes.
Powertrain > Engine and ECT > Trouble Codes(e) Select a DTC in order to display its pending freeze frame data.
HINT:
LIST OF FREEZE FRAME DATA
Powertrain > Engine and ECT|
Tester Display |
|---|
|
Battery Voltage |
|
Alternator Output Duty |
|
Alt Vol - Non Active Test |
|
Alt Vol - Active Test |
Dtc Check / Clear
Data List / Active TestToyota CH-R Service Manual > Automatic Headlight Beam Level Control System: Freeze Frame Data
FREEZE FRAME DATA
FREEZE FRAME DATA
(a) Whenever an automatic headlight beam level control system DTC is stored,
the headlight ECU sub-assembly LH stores the current vehicle state as freeze frame
data.
CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition swi ...
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted
Air Conditioner Pressure Sensor): System Description
SYSTEM DESCRIPTION
GENERAL
The air conditioning system has the following controls.
Control
Outline
Neural Network Control
This control is capable of performing complex control by artificially
simulating the information processing method of the ...