STOP AND START SYSTEM > FREEZE FRAME DATA



DESCRIPTION
The engine stop and start ECU 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, as well as other data recorded at the time of a malfunction.

NOTICE:
  1. Freeze frame data values will vary depending on the measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem even when the values are within specifications.
  2. Turn the ignition switch to ON and park the vehicle on level ground. Check the freeze frame data using the intelligent tester.

  1. Turn the ignition switch off.

  2. Connect the intelligent tester to the DLC3.

  3. Turn the ignition switch to ON.

  4. Turn the tester on.

  5. Check for DTCs and read the freeze frame data.


LIST OF FREEZE FRAME DATA

Stop and Start System 
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Coolant Temp
Engine coolant temperature:
Min.: 16°C (60.8°F), Max.: 127°C (260.6°F)
75 to 95°C (167 to 203°F): Idling after engine warmed up
This is sent from the ECM.
Engine Spd (ECM)
Engine speed signal from ECM through CAN communication:
Min.: 0 rpm, Max.: 12800 rpm
550 to 650 rpm: Idling after engine warmed up
This is sent from the ECM.
Engine Spd (NE Signal)
Engine speed signal (calculated from pulse signal):
Min.: 0 rpm, Max.: 25600 rpm
550 to 650 rpm: Idling after engine warmed up
The pulse signal is from NEO terminal of the ECM.
Battery Voltage
Battery voltage:
Min.: 0 V, Max.: 20 V
11 to 14 V: Idling
-
Battery Temp (Start)
Battery temperature:
Min.: -40°C (-40°F), Max.: 100°C (212°F)
Close to actual temperature
-
A/C Outlet Temp
A/C blower temperature:
Min.: -159°C (-254.2°F), Max.: 159°C (318.2°F)
Close to actual temperature
Measured by duct air temperature sensor (cooler thermistor)
D Courtesy Switch Signal
Driver door courtesy switch signal:
ON/OFF
ON: Driver door open
-
Hood Courtesy Switch
Hood courtesy switch signal:
ON/OFF
ON: Engine hood closed
-
Neutral Switch
Neutral position switch signal:
ON/OFF
ON: Shift lever in neutral
-
Clutch Upper SW
Clutch switch (upper) signal:
ON/OFF
ON: Clutch pedal fully released
-
Clutch Lower SW
Clutch start switch (lower) signal:
ON/OFF
ON: Clutch pedal fully depressed
-
Starter
Cranking operation status:
ON/OFF
ON: Cranking
-
TC Terminal
TC and CG terminals of DLC3:
ON/OFF
ON: TC and CG terminals of DLC3 are connected
-
Alternator L Terminal
Generator L terminal status:
ON/OFF
ON: No power being generated
-
Oil Pressure Switch
Oil pressure switch signal:
ON/OFF
ON: Engine stopped
-
Cancel Switch
Stop and start cancel switch signal:
ON/OFF
ON: Cancel switch pressed (ON)
-
IG Switch
Ignition switch signal:
ON/OFF
ON: Ignition switch ON
-
Idle
Engine idling status:
ON/OFF
ON: Throttle closed
This is sent from the ECM
Starter Input Signal
Starter input signal:
ON/OFF
ON: Starter relay being supplied with power
Starter drive signal at engine restart
Engine Start (IG SW)
Manual engine starting method:
ON/OFF
ON: Engine started by ignition switch operation
Starter operated due to driver key operation
Stop Light SW (ECM)
Stop light switch signal:
ON/OFF
ON: Stop lights ON
This signal is sent from the ECM.
Indicat. Light ECO OFF
ECO OFF indicator light:
ON/OFF
ON: Light ON (vehicle stopped, and any of the Stop and Start system control prohibit conditions have been met)
This indicator light is illuminated while Stop and Start system control is prohibited (the vehicle is stopped).
Buzzer
Buzzer status:
ON/OFF
ON: Buzzer ON
Refer to System Description (Click here)
Indicat. Light Oil
Oil pressure warning light status:
ON/OFF
ON: Engine stopped for any reason other than Stop and Start system control
-
Indicat. Light Eco
ECO warning light status:
ON/OFF
ON: ECO warning light ON or blinking
-
Starter Request
Starter operation request signal:
ON/OFF
ON: Starter operated by engine stop and start ECU
-
Starter Operation #
Number of starter operations (count record):
Min.: 0, Max.: 1048575
-
-
Vehicle Spd 1 (ABS/VSC)
Vehicle speed signal from skid control ECU (through CAN communication):
Min.: 0 km/h (0 mph), Max.: 327.67 km/h (203.6 mph)
0 km/h (0 mph): Vehicle stopped
-
Vehicle Spd 2 (Spd Signal)
Vehicle speed signal (calculated from pulse signal):
Min.: 0 km/h (0 mph), Max.: 512 km/h (318.1 mph)
0 km/h (0 mph): Vehicle stopped
The pulse signal from combination meter
Vehicle Spd 3 (Spd Signal)
Vehicle speed signal for diagnosis (calculated from pulse signal):
Min.: 0 km/h (0 mph), Max.: 255 km/h (158.4 mph)
0 km/h (0 mph): Vehicle stopped
The pulse signal from combination meter
Battery Current
Battery current:
Min.: -125 A, Max.: 124.99 A
Battery discharge current
-
Brake Boost Pressure
Brake booster pressure (absolute pressure):
Min.: 0 kPa (0 mmHg), Max.: 112 kPa (840 mmHg)
Approx. 100 kPa (750 mmHg): Ignition switch ON, brake pedal depressed several times (differs according to atmospheric pressure)
-
Brake Negative Pressure
Brake booster vacuum (negative pressure):
Min.: 0 kPa (0 mmHg), Max.: 640 kPa (4800 mmHg)
0 kPa (0 mmHg): Ignition switch ON, brake pedal depressed several times
This item cannot be checked if an error occurs in communication with the ECM.
Ambient Temp Sensor
Ambient temperature:
Min.: 0°C (32°F), Max.: 80°C (176°F)
Close to ambient air temperature
-
Stop&Start of Eng State
Stop and Start system control status:
IG / Run / Stopreq / Stop / Restart
  1. IG: Before engine started
  2. Run: Engine running
  3. Stopreq: Engine stop requested
  4. Stop: Engine stopped
  5. Restart: Engine restarted
-
Integrated Current
Battery integrated current calculated from the battery current sensor signal:
Min.: -268434.45 A-sec, Max.: 268435.45 A-sec
Differs according to the vehicle condition (charge/discharge conditions)
Refer to "Regarding Battery Integrated Current" in Data List/Active Test for details (Click here).
Cranking Time
Engine cranking time (in present trip):
Min.: 0 ms, Max.: 134215 ms
0.3 to 3.5 seconds: Accumulated starter on time due to Stop and Start system control
-
Min Voltage (Cranking)
Minimum battery voltage while engine cranking (in present trip):
Min.: 0 V, Max.: 327.67 V
6 to 10 V
Lowest battery voltage measured in a 5 second period after the starter starts operating
State of BBC
Backup boost converter status (diagnostic result):
Cycle Err / Overvol / Overload / Normal / Low Vol / Duty Err
Normal: Backup boost converter operating normally
  1. Duty Err:
    1. Inappropriate DDON duty value is detected.
  2. Cycle Err:
    1. DDON duty cycle deviates beyond the allowable range.
  3. Low Vol:
    1. A decrease in the voltage of the control IC power source within the backup boost converter is detected when ignition switch is ON.
  4. Overload:
    1. Overcurrent is detected such as an audio excessive volume.
  5. Overvol:
    1. When the ignition switch is ON:
      1. Overvoltage is detected at the control IC power source within the backup boost converter.
      2. Overheating is detected at the control IC power source within the backup boost converter.
    2. When boosting:
      1. Error is detected in the feedback circuit in the backup boost converter.
      2. Too high or low output voltage.
Refer to DTC P323B
(Click here)
BBC Check Result
Backup boost converter over-load status (fuse function status):
Normal/Abnormal
Normal: Backup boost converter operating normally
Excessive amperage load when the backup boost converter is boosting the voltage during engine start.
Atmosphere Pressure
Atmospheric pressure (calculated value):
Min.: 0 kPa (0 mmHg), Max.: 255 kPa (1913 mmHg)
Approx. 100 kPa (750 mmHg): Ignition switch ON (close to actual atmospheric pressure)
ECM calculated value
EPS Load
Electric power steering current:
Min.: -327.68 A, Max.: 327.67 A
Approx. 0 A: EPS assist is not activated
-
Accelerator Position
Accelerator pedal opening:
Min.: 0 deg, Max.: 56.5 deg
0 deg: Accelerator pedal fully released
ECM calculated value
Engine OFF Request
Engine stop request:
ON/OFF
ON: Stop and Start system control activated
ON is shown when fuel cut is performed due to Stop and Start system control, engine start is not requested, engine is stopped, or starter is forced to operate.
Wrong Operation (Start)
Wrong operation for engine start:
ON/OFF
ON: Shift lever operated without depressing clutch pedal while the engine is stopped due to Stop and Start system control
-
Vehicle Speed Zero
Vehicle speed status:
ON/OFF
ON: Vehicle stopped
-
Engine Reverse Rev.
Engine reverse revolution status:
ON/OFF
ON: Engine turning in reverse direction
This is sent from the ECM.
Stop and Start Cancel
Stop and start control prohibition status by cancel switch:
ON/OFF
ON: Stop and Start system control prohibited by stop and start cancel switch
-
Starter Check
Starter circuit malfunction detection monitor status:
Compl/Incompl
Compl: Before vehicle stopped after starter drive circuit check completes
Compl is displayed only when starter drive circuit check completes normally. The starter drive circuit check is performed from when the vehicle speed becomes low (10 km/h (6.5 mph) or less) until the vehicle stops.
Blower Switch
A/C blower switch status:
ON/OFF
ON: Blower fan operating
-
Clutch Upper SW History
Clutch switch (upper) status record:
ON/OFF
ON: Clutch switch (upper) OFF record is detected (remains ON until next Stop and Start system control or the shift lever is moved to any drive range)
Checked each drive cycle
Neutral Switch History
Neutral position switch status record:
ON/OFF
ON: Neutral position switch OFF record is detected (remains ON until next Stop and Start system control)
Checked each drive cycle
N/Clutch Lower SW Abnoml
Neutral position switch and clutch start switch (lower) malfunction detection status:
ON/OFF
ON: Neutral position switch or clutch start switch (lower) malfunction
-
N/Clutch Upper SW Abnoml
Neutral position switch and clutch switch (upper) malfunction detection status:
ON/OFF
ON: Neutral position switch or clutch switch (lower) malfunction
-
Permit Idling Stop
Engine stop standby:
ON/OFF
ON: Stop and Start system control is available
-
Running History
Vehicle driving record:
ON/OFF
ON: The history of the vehicle was driven at 2 km/h (1.2 mph) or more (with no DTC stored)
ON remains displayed until next engine restart
Auto A/C
Whether vehicle is equipped with auto or manual air conditioning:
Without/With
Without: Not equipped with auto or manual air conditioning
With: Equipped with auto or manual air conditioning
A/C information needs to be registered after ECU replacement (Click here).
A/C Request
Engine start request from A/C system:
ON/OFF
ON: A/C needs engine running to maintain required blow-off port temperature etc.
Measured by duct air temperature sensor (cooler thermistor)
Neutral Switch
Neutral condition for stop and start control:
ON/OFF
ON: Transmission shift lever in neutral
-
Idling
Engine idling condition for stop and start control:
ON/OFF
ON: Engine running (engine speed is 1000 rpm or less), and throttle valve fully closed
-
Vehicle Speed Zero
Vehicle speed condition for stop and start control:
ON/OFF
ON: Vehicle stopped
ON is shown after the vehicle remains stopped for a certain period.
Stop&Start Precondition
Preconditions for stop and start control:
ON/OFF
ON: Preconditions for Stop and Start system control have been met
For details on the preconditions, refer to System Description (Click here).
ECM 1
Precondition for stop and start control (engine system condition):
ON/OFF
ON: Engine control conditions for Stop and Start system control have been met and no malfunctions in SFI system
-
ECM 2
Precondition for stop and start control (engine system condition):
ON/OFF
ON: Engine control conditions for Stop and Start system control have been met
This is sent from the ECM through CAN communication.
ECM 3
Precondition for stop and start control (engine system condition):
ON/OFF
ON: Engine control permits fuel cut, or Active Test (forced permission) is performed
-
IG Switch
Precondition for stop and start control (ignition switch condition):
ON/OFF
ON: Ignition switch ON for 5 seconds or more
-
Detect DTC
Precondition for stop and start control (DTC detection):
ON/OFF
ON: DTCs detected
-
Brake Negative Pressure
Precondition for stop and start control (brake booster condition):
ON/OFF
ON: Brake vacuum is more than about 45 kPa (338 mmHg) for 1 second
-
Rest Time (Stop and Start)
Precondition for stop and start control (engine running time):
ON/OFF
ON: More than 5 seconds pass after engine restarted due to Stop and Start system control
-
Driver side Door Close
Precondition for stop and start control (driver door condition):
ON/OFF
ON: Driver door closed
-
Engine Hood Close
Precondition for stop and start control (engine hood condition):
ON/OFF
ON: Engine hood closed
-
Air Conditioning ECU
Precondition for stop and start control (A/C condition):
ON/OFF
ON: No request to start engine from A/C, or Active Test (forced permission) is performed
-
After Running
Precondition for stop and start control (vehicle drive condition after first ignition switch turned ON):
ON/OFF
ON: After driving at a speed of more than 7 km/h (4.3 mph)
ON is shown until the ignition switch turned to OFF.
Neutral Switch History
Precondition for stop and start control (neutral position switch status record):
ON/OFF
ON: Neutral position switch OFF record is detected (remains ON until next Stop and Start system control)
Checked each drive cycle
Clutch Upper SW History
Precondition for stop and start control (clutch switch (upper) status record):
ON/OFF
ON: Clutch switch (upper) OFF record is detected (remains ON until next Stop and Start system control)
Checked each drive cycle
Battery
Precondition for stop and start control (battery condition):
ON/OFF
ON: Stop and Start system control is permitted due to battery condition, or Active Test (forced permission) is performed
-
Battery Voltage Cond 1
Precondition for stop and start control (battery voltage):
ON/OFF
ON: Battery temperature 0°C (32°F) or less and minimum battery voltage 7.2 V or higher when engine running
If two or more from Battery Voltage Cond 1, 2, 3, and 4 are ON, Stop and Start system control is permitted.
Battery Voltage Cond 2
Precondition for stop and start control (battery voltage):
ON/OFF
ON: Battery temperature higher than 0°C (32°F) and minimum battery voltage 7.2 V or higher when engine running
If two or more from Battery Voltage Cond 1, 2, 3, and 4 are ON, Stop and Start system control is permitted.
Battery Voltage Cond 3
Precondition for stop and start control (battery voltage):
ON/OFF
ON: Battery temperature 0°C (32°F) or less and minimum battery voltage 7.2 V or higher when engine starting
If two or more from Battery Voltage Cond 1, 2, 3, and 4 are ON, Stop and Start system control is permitted.
Battery Voltage Cond 4
Precondition for stop and start control (battery voltage):
ON/OFF
ON: Battery temperature higher than 0°C (32°F) and minimum voltage 7.2 V or higher when engine starting
If two or more from Battery Voltage Cond 1, 2, 3, and 4 are ON, Stop and Start system control is permitted.
Battery Current
Precondition for stop and start control (battery current):
ON/OFF
ON: Battery discharge current of 50 A or less
Power management ECU calculated value
Battery Integrated Current
Precondition for stop and start control (battery integrated current):
ON/OFF
ON: Accumulated battery current (electrical discharge current value) below a certain level
(2246 A-sec)
The status depends on the value of "Integrated Current", and ON/OFF threshold differs according to the battery temperature.
Refer to "Regarding Battery Integrated Current" in Data List/Active Test for details (Click here).
Power Management
Precondition for stop and start control (power source system condition):
ON/OFF
ON: Power management system normal
If any malfunction occurs in the power management system, the engine may not restart due to Stop and Start system control. Therefore, Stop and Start system control is prohibited.
Jump Start
Precondition for stop and start control (engine hood open condition when engine starts):
ON/OFF
ON: Engine started with the engine hood open and the ignition switch turned to the START position
If "Jump Start" is detected, Stop and Start system control is prohibited for that trip.
Manual Start
Precondition for stop and start control (engine start condition):
ON/OFF
ON: Engine started due to any operation other than key operation or Stop and Start system control (manual start)
If manual engine start is detected, Stop and Start system control is prohibited for that trip.
  1. Conditions for Manual Start:
    1. Clutch start switch (lower) OFF or vehicle speed signal (pulse signal) input
    2. Neutral position switch OFF
    3. Starter signal OFF
Alternator Gen Rate
Precondition for stop and start control (generator condition):
ON/OFF
ON: Generator is not generating a large amount of power
If the generator is generating a large amount of power, Stop and Start system control is prohibited.
After Starting
Precondition for stop and start control (engine running time condition):
ON/OFF
ON: A maximum of 4 minutes have elapsed after engine restarted
-
Input Vehicle Speed
Vehicle speed condition for engine start request:
ON/OFF
ON: Vehicle speed signal input while engine stopped due to Stop and Start system control
If a vehicle speed signal is detected during idle stop, the engine is restarted.
Brk Negative Pressure Low
Brake booster vacuum condition for engine start request:
ON/OFF
ON: Brake booster vacuum insufficient while engine stopped due to Stop and Start system control
  1. OFF is usually displayed.
  2. ON is displayed when the engine is started due to decreased brake booster vacuum caused by depressing the brake pedal several times.
Battery Condition
Battery voltage condition for engine start request:
ON/OFF
ON: Battery voltage low while engine stopped due to Stop and Start system control
-
IG Switch
Engine start request from ignition switch operation:
ON/OFF
ON: Ignition switch turned to START during Stop and Start system control
-
ECM
Engine start request from ECM:
ON/OFF
ON: Engine stop and start ECU operates starter relay when engine start request signal received from ECM via CAN
-
Air Conditioning
A/C condition for engine start request:
ON/OFF
ON: A/C needs engine running to maintain required temperature while engine stopped due to Stop and Start system control
-
EPS
Power steering condition for engine start request:
ON/OFF
ON: Power steering is operated while engine stopped due to Stop and Start system control
-
Power Management
Power management system condition for engine start request:
ON/OFF
ON: Malfunction occurs in power management system or backup boost converter during Stop and Start system control
-
Detect DTC
DTC detection status for engine start request:
ON/OFF
ON: Any DTCs detected during Stop and Start system control
-
Clutch Pedal
Clutch pedal status for engine start request:
ON/OFF
ON: Clutch pedal depressed without wrong shift operation
-
Engine Hood Open
Engine hood switch condition:
ON/OFF
ON: Engine hood open (with clutch start switch (lower) signal ON and neutral position switch signal ON) while engine stopped due to Stop and Start system control
-
Battery
Battery status for engine start request:
ON/OFF
ON: Engine start requested due to low battery voltage while engine stopped due to Stop and Start system control
-
Battery Voltage Low 1
Low battery voltage:
ON/OFF
ON: Battery voltage drops when the engine is stopped due to Stop and Start system control
-
Battery Voltage Low 2
Low battery voltage:
ON/OFF
ON: Urgent engine start request due to low battery voltage while engine stopped due to Stop and Start system control
-
Before Running
Before driving condition and after ignition switch is turned to ON:
ON/OFF
OFF: Before driving at more than 7 km/h (4.3 mph) after ignition switch ON
-
Steering Action
Power steering condition for stop and start control:
ON/OFF
OFF: Usually
-
ABS Running
ABS condition for stop and start control:
ON/OFF
ON: ABS operating
-
BBC Abnoml
Backup boost converter malfunction detection status:
ON/OFF
OFF: System normal
Refer to DTC P323B
IG SW Abnoml
Ignition switch circuit malfunction detection status:
ON/OFF
OFF: System normal
Refer to DTC P2531
Battery Abnoml
Battery malfunction detection status:
ON/OFF
OFF: System normal
Refer to DTC P0562
Starter Circuit Malfunction
Starter circuit malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
Refer to DTC P1644
Spd Sensor Malfunction 1
Vehicle speed signal malfunction:
ON/OFF
OFF: System normal
Vehicle speed signal is interrupted (0 km/h (0 mph) is detected).
NE Sensor Circuit Open 2
Engine speed signal malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
ON: No pulse signal from ECM while the engine is cranking (Stop and Start system control will be prohibited).
NE Sensor Circuit Open 3
Engine speed signal malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
ON: Difference between the NE signal (pulse signal from ECM) and the engine speed information (through CAN communication) is more than a threshold.
Refer to DTC P0335.
Brk Boost Sen Malfunction
Brake booster pressure signal malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
Refer to DTC P1540, P1541.
Spd Sensor Malfunction 2
Vehicle speed signal malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
ON: Difference between the vehicle speed signal (pulse signal from combination meter) and vehicle speed information (through CAN communication) is more than a threshold.
Refer to DTC P0500.
Starter Circuit Open
STA signal circuit malfunction detection status for fail-safe function:
ON/OFF
OFF: System normal
Refer to DTC P1545.
Starter Count Error
Starter operation counter status for fail-safe function:
ON/OFF
OFF: Number of starter operations below specified value
Refer to DTC P1545.