Toyota RAV4 manuals

Toyota Sienna Service Manual: Freeze frame data

1. DESCRIPTION

(a) 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 running or stopped, 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 duplicate the problem even though a DTC is detected, confirm the freeze frame data.

Freeze frame data

(b) The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using the intelligent tester, five separate sets of freeze frame data, including the data values at the time when the DTC was set, can be checked.

These data sets can be used to simulate the condition of the vehicle around the time of the occurrence of the malfunction. The data may assist in identifying of the cause of the malfunction, and in judging whether it was temporary or not.

2. LIST OF FREEZE FRAME DATA

LIST OF FREEZE FRAME DATA

LIST OF FREEZE FRAME DATA

LIST OF FREEZE FRAME DATA

LIST OF FREEZE FRAME DATA

Dtc check / clear
Notice:All the stored dtcs and freeze frame data are erased if: 1) the ecm is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from on to a ...

Check mode procedure
HINT: Intelligent tester only: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode. ...

Other materials:

Master Cylinder Pressure Sensor Malfunction
DTC C1246/46 Master Cylinder Pressure Sensor Malfunction DESCRIPTION Master cylinder pressure sensor is connected to the skid control ECU in the actuator. INSPECTION PROCEDURE 1 READ VALUE ON INTELLIGENT TESTER (MASTER CYLINDER PRESSURE SENSOR) (a) Connect the intelligent tester to the DL ...

Short to B+ in Door System Communication Bus Malfunction/ Short to GND in Door System Communication Bus Malfunction
DTC B1214 Short to B+ in Door System Communication Bus Malfunction DTC B1215 Short to GND in Door System Communication Bus Malfunction DESCRIPTION DTCs B1214 and B1215 are output when a short to +B or the body ground occurs on the communication bus. Detecting this condition disables all the ...

Disassembly
HINT: Overhaul the RH side by the same procedures as these of the LH side. 1. REMOVE REAR WHEEL 2. SEPARATE REAR DISC BRAKE CALIPER ASSEMBLY LH HINT: Do not disconnect the flexible hose from the brake caliper. 3. REMOVE REAR DISC (a) Release the parking brake, and remove the rear disc. H ...

В© 2011-2022 Copyright www.tsienna.net