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:
P0190 FRP sensor
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or ...
Inspection
INSPECTION AFTER REMOVAL
Appearance
Check the propeller shaft for bend and damage. If damage is detected, replace
propeller shaft assembly.
Propeller Shaft Runout
Check propeller shaft runout at measuring points with a dial indicator.
If runout exceeds specifications, replace propeller sh ...
Camshaft valve clearance
Inspection and Adjustment
INSPECTION
Perform inspection as follows after removal, installation or replacement of
camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-53, "Exploded View".
2. Measure ...
