Nissan Silvia. Instruction — part 11
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(WITHOUT CONSULT-II)
NMAT0206S05
1.
If the ignition switch stays “ON” after repair work, be sure to
turn ignition switch “OFF” once. Wait for at least 5 seconds and
then turn it “ON” again.
2.
Perform “SELF-DIAGNOSTIC PROCEDURE (Without CON-
SULT-II)’’. Refer to AT-37.
3.
Turn ignition switch “OFF”. (The self-diagnostic results will be
erased.)
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Diagnostic Procedure Without CONSULT-II (Cont’d)
AT-41
SAT631IB
Introduction
NMAT0019
SAT632I
SEF234G
The TCM receives a signal from the vehicle-speed sensor, throttle
(accelerator) position sensor or inhibitor switch and provides shift
control or lock-up control via solenoid valves.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good
operating condition and be free of valve seizure, solenoid valve
malfunction, etc.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this
case, careful checking of suspected circuits may help prevent the
replacement of good parts.
A visual check only may not find the cause of the problems. A road
test with CONSULT-II or a circuit tester connected should be per-
formed. Follow the “Work Flow”. Refer to AT-46.
Before undertaking actual checks, take a few minutes to talk with
a customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such problems, espe-
cially intermittent ones. Find out what symptoms are present and
under what conditions they occur. A “Diagnostic Worksheet” like the
example (AT-44) should be used.
Start your diagnosis by looking for “conventional” problems first.
This will help troubleshoot driveability problems on an electronically
controlled engine vehicle.
Also check related Service bulletins.
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction
AT-42
DIAGNOSTIC WORKSHEET
=NMAT0019S01
Information From Customer
NMAT0019S0101
KEY POINTS
WHAT . . Vehicle & A/T model
WHEN. . Date, Frequencies
WHERE. . Road conditions
HOW. . Operating conditions, Symptoms
Customer name
MR/MS
Model & Year
VIN
Trans. model
Engine
Mileage
Incident Date
Manuf. Date
In Service Date
Frequency
l
Continuous
l
Intermittent (
times a day)
Symptoms
l
Vehicle does not move.
(
l
Any position
l
Particular position)
l
No up-shift
(
l
1st
,
2nd
l
2nd
,
3rd
l
3rd
,
O/D)
l
No down-shift
(
l
O/D
,
3rd
l
3rd
,
2nd
l
2nd
,
1st)
l
Lockup malfunction
l
Shift point too high or too low.
l
Shift shock or slip
(
l
N
,
D
l
Lockup
l
Any drive position)
l
Noise or vibration
l
No kickdown
l
No pattern select
l
Others
(
)
POWER indicator lamp
Blinks for about 8 seconds.
l
Continuously lit
l
Not lit
Malfunction indicator lamp (MIL)
l
Continuously lit
l
Not lit
GI
MA
EM
LC
EC
FE
CL
MT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction (Cont’d)
AT-43
Diagnostic Worksheet
=NMAT0019S0102
1.
l
Read the Fail-safe and listen to customer complaints.
2.
l
A/T FLUID CHECK
l
Leakage (Follow specified procedure)
l
Fluid condition
l
Fluid level
3.
l
Perform STALL TEST and LINE PRESSURE TEST.
l
Stall test — Mark possible damaged components/others.
l
Torque converter one-way clutch
l
Reverse clutch
l
Forward clutch
l
Overrun clutch
l
Forward one-way clutch
l
Low & reverse brake
l
Low one-way clutch
l
Engine
l
Line pressure is low
l
Clutches and brakes except high clutch and
brake band are OK
l
Line pressure test — Suspected parts:
4.
l
Perform all ROAD TEST and mark required procedures.
4-1.
Check before engine is started.
l
SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
l
Vehicle speed sensor·A/T (Revolution sensor), AT-89.
l
Vehicle speed sensor·MTR, AT-95.
l
Throttle position sensor, AT-98.
l
Shift solenoid valve A, AT-106.
l
Shift solenoid valve B, AT-111.
l
Overrun clutch solenoid valve, AT-116.
l
Torque converter clutch solenoid valve, AT-120.
l
A/T fluid temperature sensor and TCM power source, AT-125.
l
Engine speed signal, AT-132.
l
Line pressure solenoid valve, AT-136.
l
Control unit (RAM), control unit (ROM), AT-142.
l
Control unit (EEPROM), AT-144.
l
PNP, overdrive control, A/T mode and throttle position switches, AT-189.
l
Battery
l
Others
4-2.
Check at idle
l
1. POWER Indicator Lamp Does Not Come On, AT-149.
l
2. POWER or SNOW Indicator Lamp Does Not Come On, AT-150.
l
3. O/D OFF Indicator Lamp Does Not Come On, AT-151.
l
4. POWER Indicator Lamp Does Not Come On, AT-152.
l
5. Engine Cannot Be Started In “P” And “N” Position, AT-153.
l
6. In “P” Position, Vehicle Moves Forward Or Backward When Pushed, AT-154.
l
7. In “N” Position, Vehicle Moves, AT-155.
l
8. Large Shock. “N”
,
“R” Position, AT-157.
l
9. Vehicle Does Not Creep Backward In “R” Position, AT-159.
l
10. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position, AT-162.
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction (Cont’d)
AT-44
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