CONSULT Function
FUNCTION
CONSULT can display each diagnostic item using the diagnostic test modes shown following
Diagnostic test mode |
Function |
ECU identification | The part number stored in the control unit can be read. |
Self diagnostic result | Self-diagnostic results and freeze frame data can be read and erased quickly.* |
Data monitor | Input/Output data in the EPS control unit can be read. |
*: The following diagnosis information is erased by erasing.
ECU IDENTIFICATION
Displays the part number stored in the control unit.
SELF-DIAG RESULTS MODE
Refer to STC-13, "DTC Index".
When “CRNT” is displayed on self-diagnosis result.
When “PAST” is displayed on self-diagnosis result.
FREEZE FRAME DATA (FFD)
The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.
Item name |
Display item |
IGN COUNTER (0 – 39) | The number of times that ignition switch is turned ON after the DTC
is detected is displayed.
NOTE: Each time when ignition switch is turned OFF to ON, numerical number increases in 1→2→3...38→39. When the operation number of times exceeds 39, the number do not increase and “39” is displayed until selfdiagnosis is erased. |
DATA MONITOR MODE
NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
Monitor item (Unit) |
Remarks |
BATTERY VOLT (V) | Displays the power supply voltage for EPS control unit. |
TORQUE SENSOR (Nm) | Displays steering wheel turning force detected by torque sensor. |
MOTOR CURRENT (A) | Displays the current value consumed by EPS motor.*1 |
MOTOR SIG (A) | Displays the current commanded value to EPS motor. |
ASSIST TORQUE (Nm) | Displays assist torque of EPS motor being output by the electric power steering. |
C/U TEMP (°C) or (°F) | Displays the temperature of the EPS control unit. |
ASSIST LEVEL (%) | Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls. However, it return to 100% when left standing.*2 |
VEHICLE SPEED (km/h) or (MPH) | Vehicle speed is displayed from vehicle speed signal via CAN communication.*3 |
WARNING LAMP (On/Off) | EPS warning lamp control status is displayed. |
ENGINE STATUS (Stop/Run) | Engine speed is displayed from engine status signal via CAN communication. |
*1: Almost in accordance with the value of “MOTOR SIG”. It is not a
malfunction though these values are not
accorded when steering quickly.
*2: Normally displays 100%. In case of an excessive stationary steering, the
assist curvature gradually falls.
However, it returns to 100% when left standing.
*3: It is not a malfunction, though it might not be corresponding just after
ignition switch in turned ON.
DTC/circuit diagnosis
U1000 CAN COMM CIRCUIT
Description
Refer to LAN-8, "System Description".
DTC Logic
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
CAN COMM CIRCUIT
[U1000]
When IPDM E/R cannot communicate with CAN communication
sig ...
Ground
Ground Distribution
MAIN HARNESS
ENGINE ROOM HARNESS
ENGINE CONTROL HARNESS
BODY HARNESS
BODY NO. 2 HARNESS
...
C1142 press sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1142
PRESS SEN CIRCUIT
When a malfunction is detected in master cylinder
pressure sensor
Stop lamp switch system
ABS actuator and electric unit
...