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 |
Toyota CH-R Service Manual > Power Window Control System: Fail-safe Chart
FAIL-SAFE CHART
PULSE FAILURE
(a) If a pulse sensor built into the power window regulator motor assembly malfunctions,
the following power window operations will be prohibited.
Multiplex Network Master Switch Assembly, Power Window Regulator Switch Assembly,
Rear Power Window Regulator Switch ...
Toyota CH-R Service Manual > Main Body Ecu: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration)
that must be performed after parts are removed and installed, or replaced during
the main body ECU (multiplex network body ECU) removal/installation are shown below.
Necessary P ...