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 > Safety Connect System: Dcm Activation
DCM ACTIVATION
DCM ACTIVATION
This function should be used to activate the DCM (Telematics Transceiver) after
a new DCM (Telematics Transceiver) has been installed. During the DCM Activation
process, the Techstream automatically provides the telematics service provider with
the new DCM (Tele ...
Toyota CH-R Service Manual > Smart Key System(for Start Function): ACC Monitor Malfunction (B2274)
DESCRIPTION
This DTC is stored when a malfunction in the ACC output circuit is detected.
The ACC output circuit is the circuit between terminal ACCD of the certification
ECU (smart key ECU assembly) and the ACC relay.
DTC No.
Detection Item
DTC Detection Condit ...