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 > Occupant Classification System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Occupant Classification System
DTC No.
Detection Item
Link
B1771
Passenger Side Buckle Switch Circuit Malfunction
B1780
Front Occupant Classification Sensor LH Circui ...
Toyota CH-R Service Manual > Power Door Lock Control System: All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the
power window regulator switch assembly on the front passenger door and activates
the door lock motor on each door according to these signals.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before r ...