CONSULT Function
FUNCTION
CONSULT can display each diagnostic item using the diagnostic test modes
shown following. 
*: 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 "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. 
DATA MONITOR MODE

*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.
ECU DIAGNOSIS INFORMATION
EPS SystemEPS SYSTEM : System Description EPS control unit performs an arithmetical operation on data, such as steering wheel turning force (sensor signal) from the torque sensor, vehicle speed signal, ...

Reference Value VALUES ON THE DIAGNOSIS TOOL CAUTION: The output signal indicates the EPS control unit calculation data. The normal values will be displayed even in the event that the output cir ...
U0100 Lost communication (ECM A)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U0100
Lost Communication With
ECM/PCM "A"
When the ignition switch is ON,
TCM is unable to receive the
CAN communications signal
from ECM continuously for 2
...
P074C Unable to engage 4GR
Description
This malfunction is detected when the A/T does not shift into 4GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...