1998 NISSAN GT-R ECO mode

ANTI-LOCK BRAKE SYSTEM
Self-diagnosis (Cont'd)
Example: Code No. 25 Front left wheel sensor (open-ccrcuit)
lnd~cat~on
s:arl
Start code No. i2
Unit: seconds BRG1185D
ABS warnq lamp ON -
A9S warnrng lamp OFF
Self-d~agnosis complete , C ABS warning lamp !
I i I I I
................ &. j(j(?.:e~o"dd~i!~?!!f!!. . -----... .-.---.--. iiii rase 1 12.5 seconds I mode
Malfunct~on
memory Malfunction memory is Nn. erase mode starts. Is erased BRG0057C
Tens d~g~ts Un~ts digits Code No 25 I I - I
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(Malfunction codes)
r--------- -T---t----t-l-T-l-
1. Turn the ignition switch "ON" and start the engine.
-.
---------- -I--I--t--l-i-"I
2. Drive the vehicle at approx. 30 kmh for approx. 1 minute to
check that there is no other malfunction.
ST
3. Stop the vehicle.
4. Turn the ignition switch "OFF'.
5. Ground the self-diagnostic check terminal. RS'
6. Turn the ignition switch "ON" to start the self-diagnostic results
-
-.
3 06 0.9 03C303 3.3 06 0.6 0.6 09 050303030305030303
-----
mode.
CAUTION:
c--
Do not depress the brake pedal during self-diagnosis. Do not
start the engine. (The self-diagnosis
would not start.)
7. The ABS warning lamp starts to blink 3 or 4 seconds after the EL
self-diagnostic results mode is started.
8. Under the self-diagnostic results mode, the malfunction $jD
memory erase mode starts when the check terminal is discon-
nected from the ground.
9. Ground the check terminal 3 times or more in succession
within 12.5 seconds after the erase mode starts. (Each ground-
ing must
be 1 second or longer.)
10. Disconnect the grounding cable from the check terminal to
erase the malfunction memory and complete the
self-diagno-
sis. The ABS warning lamp
, then, turns off.
11. Turn the ignition switch
"OFF'.

TCSfABS SYSTEM
CONSULT for
TCSfABS Control
Unit Control
System (Cont'd)
Diagnostic item
LAN CIRCUIT
1
LAN CIRCUIT 2
Diagnostic item is detected when ... I Check item
NOTE:
If "NO FAILn is displayed as a result of the CONSULT self-diagnosis when the ABS warning lamp is lit, inspect the engine speed
signal circuit.
If "ABSn is not displayed on "SELECT SYSTEM" screen, check ABS control unit and data link connector circuit, and make sure of the CONSULT card number. If "ENGINE SYSTEM", "LAN SIGNAL 1". "LAN SIGNAL 2", "LAN SIGNAL 3, "LAN CIRCUIT 1" or "LAN CIRCUIT 2" is displayed
on the screen, perform the self-diagnosis for the
ECM.TCM
or ECM.
If "THROlTLE CONTROLLER COMMUNICATIONn is displayed on the screen, perform the self-diagnosis for throttle control unit.
Total control signal (multiple signal) for engine, All and TCSIABS is abnormal (open or
shorted communication harness,-faulty connections, abnormal TCSIABS control unit or
ECM.TCM
or ECM).
ECM.TCM
or ECM power is cut
off or decreased for 2 seconds or longer.
Total control signal (multiple signal) for engine,
ArT and TCSIABS is suspected to be
interrupted (open or shorted communication harness, faulty connections, abnormal
TCS/ABS
control unit or ECM TCM or ECM).
ECM.TCM or ECM power is cut off or decreased for 2 seconds or longer.
DATA
a
1.
2.
3.
4.
5.
a
signal 1, 2
(multiple sig-
nal) for
and
TCSI
ABS
MONITOR PROCEDURE
Refer to CONSULT Instruction Manual for details on data
monitor function.
Turn ignition switch OFF.
Connect CONSULT connector to data link connector for
CON-
SU LT.
Turn ignition switch
ON.
Touch "START" on CONSULT screen.
Touch "ABS" on CONSULT screen.
If "START" is touched immediately after engine is started
or ignition switch is turned ON, "ABS" may not be dis-
played on "SELECT SYSTEM" screen. To display "ABS",
repeat the data monitor procedure from the beginning.
Touch "DATA MONITOR".
Touch "SETTING" to set recording condition.
Touch "AUTO TRIG", "LONG TIME" and then
"ENTER".
Return to "SELECT MONITOR ITEM" screen and touch "C/U
INPUT ITEM",
"ALL SIGNALS" or "SELECTION FROM
MENU". Refer to "DATA MONITOR MODE" on the next page.
10. Touch "START".
11. Display data monitor.
12. If necessary, sequentially touch "REC START, "REC STOP",
"DATA DISPLAY", "NUMBER PRINT" and "PRINT" to print out
the data.

TCS/ABS SYSTEM
Self-diagnostic check ter (Terminal 4 of data link c
Data link connector for CONSULT
Self-diagnosis for TCSfABS Control Unit
Control System
SELF-DIAGNOSIS PROCEDURE
1. Collect information on the concern from the customer, and then
perform basic inspections.
2. Drive vehicle at approx. 30 km/h for approx. 1 minute.
3. Stop vehicle and start diagnosis.
4. Turn ignition switch "OFF.
5. Ground the self-diagnostic check terminal 4 on the data link
connector for CONSULT.
6. Turn ignition switch "ON" to start the self-diagnostic results
mode.
CAUTION:
Keep terminal 4 grounded during self-diagnosis. Do not
depress brake pedal. Do not start engine. (Self-diagnosis
would
not start.)
When SLlP indicator lamp does not start blinking, check
TCSfABS
control unit power supply circuit and ground
circuit.
7. The SLlP indicator lamp starts blinking to indicate the malfunc-
tion code No.
3 or 4 seconds after the self-diagnostic results
mode is started.
The indication terminates after 5 minutes. Turning the igni-
tion switch from
"OFF" to "ON" resumes blinking the indi-
cation.
During the SLIP indicator lamp operation shown above,
TCS
OFF indicator lamp and ABS warning lamp are lit.
8. Vsrify the location of the malfunction with "MALFUNCTION
CODUSYMPTOM
CHART", BR-36. Then make the necessary
repairs.
9. After the malfunctions are repaired, erase the malfunction
codes stored
in the control unit. Refer to "HOW TO ERASE
SELF-DIAGNOSTIC RESULTS on the next page.
10. Rerun the self-diagnostic results mode to verify that the mal-
function codes have been erased.
When the malfunction codes have been erased, the start
code is only indicated.
11. Disconnect the check terminal from the ground. The self-diag-
nostic results mode is now complete.
12. Drive vehicle at approx. 30 km/h for approx. 1 minute, and then
check that the
TCS OFF indicator lamp, the SLlP indicator
lamp and the ABS warning lamp are OFF.
HOW TO READ SELF-DIAGNOSTIC RESULTS
(Malfunction codes)
Determine the code No. by observing the time and the fre-
quency that the SLlP indicator lamp flashes ON and OFF.
Refer to the next page.
When multiple malfunctions occur at a time, up to three code
numbers can
be stored; the latest malfunction will be indicated
first.
The indication begins with the start code No. 12. After that a
maximum of three code numbers appear in the order of the
latest one first. The indication then returns to the start code No.
12 to repeat.
The start code No.
12 is only indicated repeatedly when there
is no malfunction.

TCS/ABS SYSTEM
Self-diagnosis for TCS/ABS Control Unit
control System (Cont'd)
Example: Code No. 25 Front left wheel sensor (open-circutt)
lnd~cat~on
start Start code No.
12
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(Malfunction codes)
1. Turn the ianition switch "ON" and start the engine.
ABS warnlng lamp - ON
ABS warning lamp
OFF
2. Drive the iehicle at approx. 30 km/h for appfox. 1 minute to
check that there
is no other malfunction.
3. Stop the vehicle and turn the ignition switch "OFF'. I88
4. Ground the self-diagnostic check terminal 4 on the data link
connector for CONSULT.
5. Turn the ignition switch "ONn to start the self-diagnostic results /,%@A
mode.
I---------- -------------- -?-I 3 06 0.9 03C303 3 3 06 3.6 06 09 030303030303030303
Unit: seconds BRG1185D
Tens drglts Units drgits Code No. 25
I -----l
7. Under the self-diagnostic results mode, the malfunction
memory erase mode starts when the check terminal
is discon-
nected from the ground.
8. Ground the check terminal 3 times or more in succession
-.
self-d~agnosts complete
SLlP ndicator lamp i
I ON r
f OFF - c 4 i
ground J Erase -- - - - - - - - - -i - - - - ---f2.i geconds-- - - - - - - .. t mode
Malfunct~on
memory
Malfunct~on
memory
IS erase mode starts. 1s erased. BRZOO~~D
within 12.5 seconds after the erase mode starts. (Each ground-
ing must be
2 seconds or longer.)
9. Disconnect the grounding cable from the check terminal to
erase the malfunction memory and complete the
self-diagno-
-----
CAUTION:
Keep terminal 4 grounded during self-diagnosis. Do not EL
depress the brake pedal during self-diagnosis. Do not start the
engine.
6. The SLIP indicator lamp starts blinking to indicate the malfunc- SD
tion code No. 3 or 4 seconds after the self-diagnostic results
mode is started.
The indication terminates after 5 minutes. Turning the igni-
tion switch from
"OFF" to "ON" resumes blinking the indi-
cation. During the SLlP indicator lamp operation shown
above,
TCS OFF indicator lamp and ABS warning lamp are
lit.
sis.
10. Rerun the self-diagnostic results mode to verify that the mal-
function codes have been erased.
0 When the malfunction codes have been erased, the start
code No.
12 is only indicated.
11. Disconnect the check terminal from the ground. The self-diag-
nostic results mode is now complete.
12. Drive vehicle at approx. 30 kdh for approx. 1 minute, and then
check that the
TCS OFF indicator lamp, the SLlP indicator
lamp
and the ABS warning lamp are OFF.
13. Turn the ignition switch "OFF.

TCSIABS SYSTEM
CONSULT for Throttle Control Unit Control
System (Cont'd)
SELF-DIAGNOSTIC RESULTS MODE
- - Diagnostic item I Diagnostic item is detected when ... I Check item
THROTTLE
POSl
SEN
THROTTLE MOTOR Throttle
position sensor signal output is abnormally high or
continues to stay low for a certain period of time.
I
Throttle motor sensor signal output is abnormally high or con-
tinues to stay low for
a certain period of time. 1 Throttle motor sensor and circuit
Throttle
position sensor circuit
THRTL OPEN TRGET
THROTTLE ACTUATOR
RLY 1 Throttle motor relay is short-circuited.
[SHORT] Circuit
for throttle motor target angle signal (DKR line) is open
or shorted. TCS/ABS control unit
is abnormal.
Circuit for the communication
line between the throttle control
Throttle motor operation
does not accord with the throttle
motor target angle.
Throttle motor and circuit
I
ENGINE START SIG unit
and the TCSIABS control
unit
1 THROTTLE MOTOR
THROlTLE MOTOR RLY
[OPEN]
I Start signal is not correctiy entered due to short.
Overcurrent
is applied to the throttle motor drive circuit. I
Start signal circuit and
ECM-TCM or
ECM
Throttle motor relay is open.
Throttle motor relay and circuit
connector for
NEUTRAL POSl SW
DATA MONITOR PROCEDURE
Refer to CONSULT Instruction Manual for details on data
monitor function.
Turn ignition switch OFF.
Connect CONSULT connector to data link connector for
CON-
SU LT.
Turn ignition switch ON.
Touch "START' on CONSULT screen.
Touch ''THROTTLE CONTROL" on CONSULT screen.
Touch "DATA MONITOR".
Touch "SETTING" to set recording condition.
Touch one key from
"AUTO TRIG", "MANUAL TRIG" and
"SPECIAL", and then touch "LONG
TIME".
With "AUTO TRIG" selected, the data is automatically recorded
if a malfunction occurs during the data monitor. With "SPE-
CIAL" selected, the data is automatically recorded when TCS
is activated.
Touch "ENTER".
Return to
"SELECT MONITOR ITEM" screen and touch "ALL
SIGNALS". Display data monitor.
If necessary, sequentially touch "REC START', "REC STOP",
"DATA DISPLAY", "NUMBER
PRINT'
and "PRINT' to print
out
the data.
Bb38
Parkheutral position switch signal is not correctly entered due
to open or shorted circuit.
--
Neutral position switch circuit
and PNP switch circuit

ELECTRIC SUPER HICAS
Preliminary
Check
1. Check HICAS actuator for improper attachment and condi-
tions.
Check the actuator for loose fasteners, damage in actuator
body, rods and dust boots, and grease leaks.
@
2. Check suspension system for improper attachment of links and
excessive play in axles.
3. Check all connectors for improper connections. yp 'SU 4. Conduct inspection using self-diagnosis function.
Trouble Diagnosis with CONSULT AT
DESCRIPTION
The trouble diagnoses have four modes: Self-diagnosis, Data B8
monitor, Active test and ECM Part Number modes.
Mode
SELF-D'AGNoSTIC
RESULTS
DATA MONITOR
ACTIVE TEST
ECM PART NUMBER
SELF-DIAG RESULTS I + DATA MONITOR
ACTIVE
TEST
ECM PART NUMBER
u
Function
Displays results of self-diagnosis.
Used to find main causes of trouble,
based on the result of self-diagnosis.
0 Monitors, records and prints the input and
output of
HICAS control unit.
Used to find main causes of trouble,
based on the result of data monitor.
Used to check the operation of actuator
by sending driving signals to it.
a Displays the part number of control unit.
I
SELF-DIAGNOSIS PROCEDURE
$ SELECT DlAG MODE u] r
After connecting CONSULT to data link connector, start the
engine.
Mode switching
Mode is switched simply by
touching the CONSULT
screen.
Touch START (on CONSULT display).
Touch
HICAS.
Touch SELF-DIAG RESULTS.
Refer to CONSULT operation manual
iiHICASJ' for details.
Display
RS
Qkl
The CONSULT screen dis-
plays the data.
EL

ELECTRIC SUPER HICAS
Trouble Diagnosis
with CONSULT (Cont'd)
connector for
'@g SELECT DlAG MODE
SELF-DIAG RESULTS i
DATA MONITOR
ACTIVE TEST
ECM PART NUMBER
u
1 I lhil SELECT MONITOR ITEM I 1
SELECTION FROM MENU
I Il
I
START I
ACTIVE TEST PROCEDURE
After connecting CONSULT to data link connector, start the
engine.
Touch "START", "HICAS and "ACTIVE TEST".
Touch 'SIMULATE" and "SELECT MONITOR ITEM".
Turn the steering wheel right or left to make the rear actuator
operate.
Reference values in normal condition
-- -
0" (Neutral) I 2.4V I 2.4V I No (Approx OV)
Steering angle
sensor
ECM PART NUMBER
Rear steering
angle main sensor
--
R 90"
L 90"
After connecting CONSULT to data link connector, turn ignition
switch ON.
Touch "START', "HICAS" and "ECM PART NUMBER7'.
Part number printed on the control unit label and part number
shown on the CONSULT screen are as follows:
2-door model: 28505
AAI
00
4-door model: 28505 AAll 0
Trouble Diagnosis with Self-diagnosis
Rear steering
angle sub-sensor
4.4V
0.4V
DESCRIPTION
If the system detects some error while vehicle is running, it notifies
the driver of a malfunction
by turning ON the HICAS warning lamp,
and at the same time, it halts the normal control and enters the
fail-safe mode.
Motor current
SELF-DIAGNOSIS PROCEDURE
4.4V
0.4V
1. Start the engine.
2. Within 10 seconds after the engine has started, turn the steer-
ing wheel more than
20" right-to-left and repeat this
5 times or
more, and then depress the brake pedal
5 times or more.
Yes (Variable)

ELECTRIC SUPER HICAS
Trouble
Diagnosis with Self-diagnosis (Cont'd)
DIAGNOSTIC ITEM INPUT
1. Move the vehicle one or two meters at a very low speed.
2. Turn the steering wheel more than 20" right-to-left once or
more.
Example: Motor power supply and steering
angle neutral signal are abnormal.
1s ,
2H z
ON
OFF
/ r Second / / I I display
Tens Units Tens
Units starts.
Example: Motor power supply and steering
angle neutral signal are abnormal.
1s- ,
0.8s A - ,2S , ,1.8S -
ON I-- '1 7, OFF- -.-- -
5s 55 1s 1.8s v".2S I_
/ -j- &lnd,
display
Tens Units Tens Units starts.
/
(12) (23) STE0109D
DISPLAY OF SELF-DIAGNOSTIC RESULTS
The results of self-diagnosis are shown by flash patterns of HlCAS BR
warning lamp.
Display when past data shows that fail-safe function
has been activated previously
Only an abnormal item is indicated by the pattern shown in the ~8 left figure. The pattern is repeated.
Display when past data shows that fail-safe function
has not been activated previously EL
If all items are normal, HlCAS warning lamp flashes at a fre-
quency of
4 Hz. sD
If system is in fail-safe mode, only an abnormal item is indi-
cated by the pattern shown in the left figure. The pattern
is
repeated.
MALFUNCTION CODE CHART
Malfunction code No. 1 Diagnostic item
11 I Control unit
2
1 [ ~ze speed signal
12
13
22 I Steering angle signal
Motor
power supply
Motor output --
23 ]Steering angle neutral signal
24 I Rear steering angle main sensor signal
2
5 I Rear steering angle sub-sensor signal
33
I Engine speed signal
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
If past record shows that fail-safe function has been activated
previously, use CONSULT, or leave the battery disconnected for
more than
30 minutes to clear the memory.