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 > Electric Parking Brake System: Electric Parking Brake System AUTO Function Circuit
DESCRIPTION
The skid control ECU (brake actuator assembly) receives shift position information
from the ECM via CAN communication.
In addition, front seat inner belt information and driver seat door courtesy
switch information is received from the main body ECU (multiplex network body ECU).
T ...
Toyota CH-R Service Manual > Toyota Entune System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the Entune system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
...