Ecd System Freeze Frame Data

  1. DESCRIPTION

  1. LIST OF FREEZE FRAME DATA

Ecd System -- Freeze Frame Data



DESCRIPTION
  1. 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 air fuel ratio was lean or rich, as well as the other data recorded at the time of a malfunction.
    HINT:
    If it is impossible to duplicate the problem even though a DTC is stored, confirm the freeze frame data.

  1. Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.1Kd-Ftv Engine Control.Ecd System.Ecd System  Freeze Frame Data
    The ECM records engine conditions in the form of freeze frame data every 0.5 seconds. Using an intelligent tester, 5 separate sets of freeze frame data can be checked.
    1. 3 data sets from before the DTC was stored
    2. 1 data set from when the DTC was stored
    3. 1 data set from after the DTC was stored
    1. These data sets can be used to simulate the condition of the vehicle from around the time of the occurrence of the malfunction. The data may assist in identifying the cause of the malfunction, and in judging whether it was temporary or not.

LIST OF FREEZE FRAME DATA

Tester Display
Measurement Item
Diagnostic Note
Vehicle Speed
Vehicle speed
The speed indicated on the speedometer.
Target Idle Engine Speed
Target idling speed
-
Engine Speed
Engine speed
-
Calculate Load
Calculated load
The load calculated by the ECM.
MAF
Mass air flow volume
If approximately 0.0 g/sec.:
  1. The mass air flow meter power source circuit is open or shorted.
  2. The VG circuit is open or shorted.
  3. The E2G circuit is open.
Atmosphere Pressure
Atmospheric pressure
-
MAP
Absolute pressure inside intake manifold
-
Coolant Temp
Engine coolant temperature
If -40°C (-40°F), the sensor circuit is open.
If 140°C (284°F) or higher, the sensor circuit is shorted.
Intake Air
Intake air temperature
If -40°C (-40°F), the sensor circuit is open.
If 140°C (284°F) or higher, the sensor circuit is shorted.
Intake Air Temp (Turbo)
Intake air temperature after intercooler
If -40°C (-40°F), the sensor circuit is open.
If 190°C (374°F) or higher, the sensor circuit is shorted.
Engine Run Time
Accumulated engine running time
-
Initial Engine Coolant Temp
Engine coolant temperature at engine start
-
Initial Intake Air Temp
Intake air temperature at engine start
-
Battery Voltage
Battery voltage
-
Pre Glow
Pre-glow operation
-
After Glow
After-glow operation
-
Accel Position
Accelerator pedal position sensor
-
Accel Sens. No.1 Volt %
Accelerator pedal position No. 1 output voltage
-
Accel Sens. No.2 Volt %
Accelerator pedal position No. 2 output voltage
-
Target Throttle Position
Target throttle position
-
Actual Throttle Position
Actual throttle position
-
Diesel Throttle Learn Status
Diesel throttle learning status
-
Throttle Sensor Volt %
Throttle position sensor output voltage
-
Throttle Motor DUTY
Throttle actuator
-
Injection Volume
Injection volume
-
Inj. FB Vol. for Idle
Injection feedback value for idle speed control
-
Inj Vol Feedback Learning
Injection volume feedback learned value
-
Injection Feedback Val #1
Injection volume correction for cylinder 1
-
Injection Feedback Val #2
Injection volume correction for cylinder 2
-
Injection Feedback Val #3
Injection volume correction for cylinder 3
-
Injection Feedback Val #4
Injection volume correction for cylinder 4
-
Pilot 1 Injection Period
Pilot 1 injection period
-
Pilot 2 Injection Period
Pilot 2 injection period
-
Main Injection Period
Main injection period
-
After Injection Period
Post injection period
-
Pilot 1 Injection Timing
Pilot 1 injection timing
-
Pilot 2 Injection Timing
Pilot 2 injection timing
-
Main Injection Timing
Main injection timing
-
After Injection Timing
Post injection timing
-
Injector Memory Error
State of injector related EEPROM information stored in ECM
-
Reju Pilot Quantity Learning
Pilot quantity learning prohibition
-
Pilot Quantity Learning
Pilot quantity learning status
-
Target Common Rail Pressure
Target common rail pressure
-
Fuel Press
Fuel pressure
-
Fuel Temperature
Fuel temperature
-
Fuel Return Temp
Fuel return temperature
-
Intank Fuel Pump
In-tank fuel pump status
-
Target Pump SCV Current
Final pump current target value
-
Pump SCV Learning Value
Pump current learned value
-
Fuel Pressure Relief Valve
Fuel pressure relief valve operation prohibition
-
Target EGR Position
Target EGR valve position
-
Actual EGR Valve Pos.
Actual EGR valve position
-
EGR Close Lrn. Val.
EGR valve fully closed position learned value
-
EGR Close Lrn. Status
EGR valve fully closed position learning status
-
EGR Operation Prohibit
EGR operation prohibition
-
Target Booster Pressure
Target booster pressure
-
VN Turbo Command
VN turbo command
-
Actual VN Position
Actual VN turbo position
-
VN Position Sensor Out
VN position sensor output voltage
-
VN Motor Duty
VN turbo motor duty
-
VN Close Learn Value
VN turbo fully closed position learned value
-
VN Close Learn Status
VN turbo fully closed position learning status
-
Starter Signal
Starter signal
-
Power Steering Signal
Power steering switch status
-
Power Steer. Sig. Record
Power steering switch status history
-
Neutral Position SW Signal
Neutral position switch signal
-
Clutch Switch
Clutch switch
-
Reverse Switch
-
-
Stop Light Switch
Stop light switch
-
A/C Signal
Air conditioning signal
-
Immobiliser Communication
Immobiliser communication
-
Time after DTC Cleared
Cumulative time after DTC cleared
-
Distance from DTC Cleared
Accumulated distance after DTC cleared
-
Warmup Cycle Cleared DTC
Warmup cycles after DTC cleared
-
TC and TE1
TC and TE1 terminals of DLC3
-
Engine Start Time
-
-
Engine Speed (Starter Off)
-
-
Starter Count
-
-
Run Dist of Previous Trip
-
-
Electric Duty Feedback Value
-
-
A/C Duty Feedback Value
-
-
PS Duty Feedback Value
-
-
Idle Injection Volume (Min)
-
-
ACM Inhibit
VSV for engine mount status
-
Swirl Control Valve VSV
VSV for swirl control valve
-
ACT VSV
A/C cut status for Active Test
-
Electric Fan Motor
Electric fan motor
-
Received MIL from ECT
MIL status from ECT
-
Shift Position Sig from ECT
Shift position from ECT
-
A/T Oil Temp from ECT
ATF temperature from ECT
-
SPD (NO)
Output shaft speed
-
ECT Lock Up
ECT lock-up status
-
A/T Oil Temperature 1
ATF temperature sensor value
-