Nissan GT-R (R35) · Service Manual SUSPENSION

DIAGNOSIS SYSTEM (E-SUS CONTROL UNIT)

Bilstein DampTronic

 
 FUNCTION

The CONSULT‐III performs the following functions using the CAN combination of data reception, command instruction, and transmission from E-SUS control unit via the communication line.

Diagnostic test mode
Function
ECU identification
E-SUS control unit part number can be read.
Self-diagnosis result
Self-diagnostic results can be read and erased quickly. *
Data monitor
Input/Output data in the E-SUS control unit can be read.
Active test
CONSULT-III drives some actuators via E-SUS, and changes some command signal values within the specified range.
*: If the memory in E-SUS control unit is erased, the DTC diagnosis result is also erased.

 
 ECU IDENTIFICATION

Displays the part number stored in the control unit.
 
 SELF-DIAGNOSIS RESULT
 
 Display Item List

Refer to DTC Index.
 
 DATA MONITOR
 
 Display Item List

Monitor item (Unit)
 		Remarks
VEHICLE SPEED (km/h) or (MPH)
 		Vehicle speed recognized by E-SUS control unit
SIDE G-SENSOR (G)
 		Side G recognized by E-SUS control unit
ST ANGLE SPD (deg/s)
 		Steering angle speed recognized by E-SUS control unit
ESTIMATED TRQ (Nm)
 		Estimated torque recognized by E-SUS control unit
REQUESTED TRQ (Nm)
 		Required torque recognized by E-SUS control unit
ENGINE SPEED (rpm)
 		Engine speed recognized by E-SUS control unit
F G-SEN OUT VOL (V)
 		Output voltage from front vertical G sensor
R G-SEN OUT VOL (V)
 		Output voltage from rear vertical G sensor
F G-SEN VOLTAGE (V)
 		Power supply voltage for front G sensor
R G-SEN VOLTAGE (V)
 		Power supply voltage for rear G sensor
FR ACTUATOR CRNT (A)
 		Control current for front RH wheel shock absorber actuator operation
FL ACTUATOR CRNT (A)
 		Control current for front LH wheel shock absorber actuator operation
RR ACTUATOR CRNT (A)
 		Control current for rear RH wheel shock absorber actuator operation
RL ACTUATOR CRNT (A)
 		Control current for rear LH wheel shock absorber actuator operation
BATTERY VOLT (V)
 		Battery voltage supplied to E-SUS control unit
MODE SW UP (V)
 		Signal voltage for mode change switch UP operation
MODE SW DOWN (V)
 		Signal voltage for mode change switch DOWN operation
BRK FLD PRESS (bar)
 		Fluid pressure recognized by E-SUS control unit when brake is applied
STP LAMP SW (On/Off)
 		Brake pedal operation status recognized by E-SUS control unit
ABS SIGNAL (On/Off)
 		ABS operation status recognized by E-SUS control unit
FAIL MODE SIG (On/Off)
 		E-SUS control unit is in fail-safe status.
R MODE LAMP (On/Off)
 		Illumination status of R mode lamp
COMF MODE LAMP (On/Off)
 		Illumination status of COMFORT mode lamp
IGN (On/Off)
 		Ignition switch status recognized by E-SUS control unit
CONTROL MODE (R/SPORT/COMF)
 		Each control mode status
R: R mode
SPORT: SPORT mode
COMF: COMFORT mode

 
 ACTIVE TEST

■ CAUTION ■
  • Always perform while the vehicle is stopped.
  • When the shock absorber actuator active test is performed, a DTC may be detected, therefore be always erase the malfunction history after the operation is completed.

  • Shock absorber actuatorThe control signal from CONSULT-III forces activation of the shock absorber actuator. The check can be performed by confirming the operation noise.
    Test item
    		Display Item
    		Display
    Operation half cycle
    SHOCK ABSORBER ACTUATOR
    		FRONT RIGHT ACTUATOR
    		0.1 seconds– 1 second (cycles 0.1 seconds)
    FRONT LEFT ACTUATOR
    REAR RIGHT ACTUATOR
    REAR LEFT ACTUATOR

  • Mode lampThe control signal from CONSULT-III forces activation of the mode lamp (ON/OFF) for check.
    Test item
    		Display Item
    		Display
    Illumination status
    ON
    		OFF
    MODE LAMP
    		R
    		ON
    		OFF
    COMF