Nissan Juke Service and Repair Manual : Diagnosis system (EPS control unit)
Consult-III Function
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
*: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
ECU IDENTIFICATION
Displays the part number stored in the control unit.
SELF-DIAG RESULTS MODE
Refer to STC-14, "DTC Index".
When “CRNT” is displayed on self-diagnosis result.
• The system is presently malfunctioning.
When “PAST” is displayed on self-diagnosis result.
• System malfunction in the past is detected, but the system is presently normal.
FREEZE FRAME DATA (FFD)
The following vehicle status is recorded when DTC is detected and is displayed on CONSULT-III.
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.
*4: Displays NORMAL in models without Nissan Dynamic Control System.
System
EPS 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, etc ...
ECU diagnosis information
EPS control unit
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 t ...
Other materials:
To protect your vehicle from corrosion
• Wash and wax your vehicle often to keep the vehicle clean.• • Always check
for minor damage to the paint and repair it as soon as possible.• • Keep drain
holes at the bottom of the doors open to avoid water accumulation.• • Check the
underbody for accumulation of sand, dirt or salt. If ...
P0172 fuel injection system function
DTC Logic
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to correct th ...
P1544 EGT sensor 2
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1544 is displayed with DTC P0115, first perform trouble diagnosis for
DTC P0115. Refer to EC-907,
"DTC Logic".
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground ...
