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Home › Subaru › 2018 › Forester 2.5i, Standard Trans › Repair and Diagnosis › Steering › Power Steering › Power Steering System (Diagnostics) › Subaru Select Monitor › Operation › Freeze Frame Data

Freeze Frame Data

  1. On [Start] display, select [Diagnosis].
  2. On [Vehicle selection] display, enter vehicle information and select [OK].
  3. On [Main Menu] display, select [Each System].
  4. On [Select System] display, select [Power Steering].
  5. On [Select Function] display, select [DTC].
  6. On [DTC] display, select [FFD].
Display Contents to be displayed Range Unit
Torque sensor main output Main torque sensor output voltage is displayed. 0 - 5 V
Torque sensor sub output Sub torque sensor output voltage is displayed. 0 - 5 V
Torque sensor reference voltage Torque sensor standard voltage is displayed. 0 - 5 V
Power current The current flowing to Control Module is displayed. -128 - 127 A
Vehicle Speed Sensor Vehicle speed is displayed. (CAN communication data) 0 - 255 km/h
Engine Speed Engine speed is displayed. (CAN communication data) 0 - 12750 rpm
CU Sensing Current(q) The current flowing to the motor relay is displayed. -128 - 127 A
3-phase motor current (U-phase) The U phase actual current value as calculated by the microcomputer from the torque sensor input is displayed. -128 - 127 A
3-phase motor current (V-phase) The V phase actual current value as calculated by the microcomputer from the torque sensor input is displayed. -128 - 127 A
Motor angular speed Data from the resolver sensor is displayed. -4096 - 4064 rpm
ECM Temperature The thermistor temperature of the steering control module is displayed. -50 - 205 Celsius
Power Supply Voltage Battery voltage is displayed. 0 - 25.5 V
Torque sensor power supply voltage The power supply voltage output to the torque sensor is displayed. 0 - 10.2 V
IG voltage The power supply voltage supplied to the ECM is displayed. 0 - 25.5 V
CAN bus status Either Active/Passive/Bus Off is displayed. - -
EPS operating condition Either Normal/Assist Stop/Assist Limitation is displayed. - -
CU Target current(q) The motor target current value required for assist is displayed. -128 - 127 A
Steering angle Steering angle of steering wheel is displayed. -640 - 635 deg
Reading assist MAP Either MAP1/MAP2/MAP3 is displayed. - -
Overheating protection intervention history Number of interventions to the overheat protection control (assist limitation for protecting the power steering from overheating)(1) 0 - 250 Time
IG Count after ECU Overheat Protection(latest) Number of times the ignition switch is ON from the intervention to overheat protection control (most recent) until now(2) 0 - 65000 Time
IG Count after ECU Overheat Protection(Previous) Number of times the ignition switch is ON from the intervention to overheat protection control (previous) until now(2) 0 - 65000 Time
IG Count after ECU Overheat Protection(Before Previous) Number of times the ignition switch is ON from the intervention to overheat protection control (before previous) until now(2) 0 - 65000 Time
Assist limit history (low voltage, high voltage) Number of intervention to assist limit when the power supply voltage is low or high(1) 0 - 250 Time
IG OFF Number while Driving Number of times the ignition switch is turned OFF while driving(1) 0 - 250 Time
(1) When the value exceeds the maximum of 250 times, 250 is displayed.

(2) When there is no intervention of the overheating protection control, "65535" is displayed. If an error such as control unit memory error, etc. occurs, "65534" is displayed.

Freeze frame data stored at the time of trouble occurrence is shown on the display.
Information of the first trouble occurrence is stored as the freeze frame data in memory.
One freeze frame data is stored.
For detailed operation procedures, refer to "Application help".
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