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 ...
P1148 closed loop control
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to
A/F sensor 1.
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause ...
Mainshaft and gear
Exploded View
1. Mainshaft front bearing 2. Mainshaft 3. 1st main gear
4. 1st inner baulk ring 5. 1st synchronizer cone 6. 1st outer baulk ring
7. 1st-2nd synchronizer hub 8. 1st-2nd coupling sleeve 9. Spring
10. Insert key 11. 2nd outer baulk ring 12. 2nd synchronizer cone
13. 2nd inner b ...