stop start NISSAN GT-R 1998 Owner's Manual

TCS/ABS SYSTEM
Self-diagnosis for TCSfABS Control Unit
Control System (Cont'd)
MALFUNCTION CODE/SYMPTOM CHART I I I
75, 'I:
'2: '3: '4:
'5:
Fail-safe operation is not activated. A signal from control unit suspends TCS and ABS control operation. Brakes operate
conventionally and the vehicle operates in the same manner as a vehicle without the TCS. After specified battery voltage
resumes, the TCS
OFF indicator lamp and the ABS warning lamp go off, allowing for TCS and ABS control operation.
TCS operation only stops and fail-safe operation is activated, allowing for ABS control operation.
Malfunction is detected only when TCS is in operation.
When there are malfunctions in the self-diagnostic check terminal circuit (terminal
4 of the data link connector for CONSULT)
and SLlP indicator lamp circuit, fail-safe operation is not activated.
Some malfunctions in the
TCS/ABS
control unit cause the SLlP indicator lamp and the
ABS warning lamp to go off sepa-
rately.
Malfunc-
tion code
No.
12
21 22
25
26
31
32
35
36
41
42
45
46
55
56
57
58
61
63
71
75
80
83
84
85
86
NO indi-
cation
(no blink-
ing)
NOTE:
When the
80, 83,
84, 85 or 86 is indicated, perform the self-diaqnosis for ECM-TCM or ECM.
Check
item
Normal
Front right wheel sensor (open-circuit)
Front right wheel sensor (short-circuit)
Front left wheel sensor (open-circuit)
Front left wheel sensor (short-circuit)
Rear right wheel sensor (open-circuit)
Rear right wheel sensor (short-circuit)
Rear left wheel sensor (open-circuit)
Rear left wheel sensor (short-circuit)
Front right outlet solenoid valve and circuit
Front right inlet solenoid valve and circuit
Front left outlet solenoid valve and circuit
Front left inlet solenoid valve and circuit
Rear outlet solenoid valve and circuit
Rear right inlet solenoid valve and circuit
Battery voltage (low)
Throttle control unit system or circuit for the corn-
munication
line between TCSIABS control unit
and
throttle control unit
Actuator motor and motor relay circuit
Actuator relay circuit
TCSIABS
control
unit
Total control signal (multiple signal) for engine,
IVT
and TCS/ABS
Engine speed signal
Monitoring of total control signal (multiple signal) for
engine,
AfT and TCS/ABS
Engine system component fuel condition
Incomplete start process of total control signal (mul-
tiple signal) for engine,
AfT and TCSIABS
Continuous start process of total control signal
(multiple signal) for engine, and
TCS/ABS
Remains OFF: Data link connector circuit
Remains ON: SLIP indicator lamp circuit shorted,
TCSIABS
control unit or self-diagnostic check termi-
nal circuit open
malfunction code No. 58 is indicated, perform the Detection
Engine
running
-
0 -
0
-
0 -
0 -
0
0
0
0
0
0
0
0
0
0
0
0
-
0
0
0
0
0
0
throttle control time
In driving
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 -
0'3
0
0
0
0
0
0
unit
a Fail-safe
operation
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-'I
0
0
0
0
0
0
0
0
0
0
-'4
-'4
code Nos.
ABS
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-*2
0
0
05
-
-
-
-
-
-
-
0
self-diagnosis. Lamp
ON
TCS OFF
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
0
When the SLlP
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0'5
0
0
0
0
0
0
-
0
malfunction

TCS/ABS SYSTEM
CONSULT for Throttle Control Unit Control
System
CONTROL UNIT PART NUMBER
The part number that is shown on the control unit label and CON-
SULT 23790 AA500
SELF-DIAGNOSIS PROCEDURE
Collect information on the concern from the customer, and then
perform basic inspections.
Turn ignition switch OFF and connect CONSULT connector to
data link connector for CONSULT on the vehicle.
sir
Start engine and drive vehicle at approx. 30 kmlh for approx.
1 minute.
Stop vehicle with engine running and touch "START',
Rs
"THROTTLE CONTROL" and "SELF-DIAG RESULTS"
sequentially on the CONSULT screen.
If "START" is touched immediately after engine is started !iIA
or ignition switch is turned on, "THRORLE CONTROL"
may not be displayed on "SELECT
SYSTEM" screen. To a
display "THROTTLE CONTROL", repeat the self-diagnosis
procedure from the beginning.
Self-diagnosis results are displayed on the screen. (Touch 8~ "PRINT" to print out the self-diagnosis results, if necessary.)
If "NO FAIL" is displayed, inspect SLIP indicator lamp, TCS
OFF indicator lamp, and ABS warning lamp. Refer to BR-26.
Perform appropriate inspection from the self-diagnostic results
mode and repair or replace faulty parts.
Start engine and drive vehicle at approx. 30
krn/h for approx.
1 minute to ensure that there is no other malfunction in the
system.
Turn ignition switch OFF to prepare for erasing the trouble
stored in memory.
Start engine and touch "START', "THROTTLE CONTROL",
"SELF-DIAG RESULTS" and "ERASE sequentially on the
CONSULT screen to erase the trouble stored in memory.
If the malfunction stored in memory is not erased, repeat
step
6.
10. Drive vehicle at approx. 30 km/h for approx. 1 minute and then !
confirm that TCS OFF indicator lamp and SLIP indicator lamp
is 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

COMBINATION METER
Component Parts Inspection (Cont'd)
If the measured resistance is out of the specification with the
thermal transmitter on vehicle, remove the thermal transmitter
from the vehicle and measure resistance as
shown left.
Water temperature "C 1 Resistance R
Approx. 60 I Approx. i70 - 21 0
Approx. 65 I Approx. 140 - 170
Approx. 80 I Approx. 76 - 90
I
- - -- Appro~. 100 Approx. 47 - 53
OIL PRESSURE SENSOR (OIL PRESSURE WARNING
LAMP SWITCH)
Check continuity between oil pressure sensor and body ground.
Terminal No.
OIL PRESSURE SENSOR
Engine is stopped.
Engine is started.
Check the resistance between the oil pressure sensor and body
ground.
Condition
Terminal No.
I Oil pressure MPa (kgkmq-1 Resistance R
Oil pressure
MPa (kg/cm2) 1 Continuity
Less than
0.01 - 0.024
(0.1 - 0.25)
More than 0.01 - 0.024
(0.1 - 0.25)
0.2 (2.0) Approx. 37 - 45
Yes
No