Infiniti I35 (A33). Manual — part 15
A/T CHECK indicator lamp:
12th judgement flicker is longer than others.
SAT554K
CAN communication line is damaged.
⇒
Go to CAN COMMUNICATION LINE, AT-104.
Lamp comes off.
SAT555K
Park/neutral position (PNP) switch, 3rd position switch, closed
throttle position signal or wide-open throttle position signal cir-
cuit is disconnected or TCM is damaged.
⇒
Go to TCM Self-diagnosis Does Not Activate, AT-265.
Flickers as shown below.
SAT556K
Battery power is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors. — This is not a problem.)
t
1
= 2.5 seconds t
2
= 2.0 seconds t
3
= 1.0 second t
4
= 1.0 second
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Diagnostic Procedure Without CONSULT-II (Cont’d)
AT-57
SAT631IA
Introduction
NHAT0024
SAT632I
SEF234G
The TCM receives a signal from the vehicle speed sensor, electric
throttle control actuator (throttle position sensor) or park/neutral
position (PNP) switch and provides shift control or lock-up control
via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is
capable of diagnosing malfunctioning parts while the ECM can
store malfunctions in its memory.
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 an incident that occurs inter-
mittently rather than continuously. Most intermittent incidents 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 incidents. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow”. Refer to AT-62.
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 incidents, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSITC WORKSHEET” like
the example (AT-59) should be used.
Start your diagnosis by looking for “conventional” incidents first.
This will help troubleshoot driveability incidents on an electronically
controlled engine vehicle.
Also check related Service bulletins for information.
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction
AT-58
DIAGNOSTIC WORKSHEET
=NHAT0024S01
Information from Customer
NHAT0024S0101
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
(
)
A/T CHECK 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
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction (Cont’d)
AT-59
Diagnostic Worksheet
=NHAT0024S0102
1.
l
Read the Fail-safe and listen to customer complaints.
2.
l
CHECK A/T FLUID
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
A/T CHECK Indicator Lamp Does Not Come On, AT-222.
l
SELF-DIAGNOSTIC PROCEDURE - Mark detected items.
l
Park/neutral position (PNP) switch, AT-108.
l
A/T fluid temperature sensor, AT-114.
l
Vehicle speed sensor·A/T (Revolution sensor), AT-120.
l
Engine speed signal, AT-125.
l
Power train revolution sensor, AT-211.
l
Torque converter clutch solenoid valve, AT-157.
l
Line pressure solenoid valve, AT-172.
l
Shift solenoid valve A, AT-178.
l
Shift solenoid valve B, AT-183.
l
Accelerator pedal position sensor (throttle position sensor), AT-188.
l
Overrun clutch solenoid valve, AT-194.
l
Park/neutral position (PNP) & 3rd position switches, closed throttle position signal and wide-open
throttle position signal, AT-265.
l
A/T fluid temperature sensor and TCM power source, AT-199.
l
Vehicle speed sensor·MTR, AT-206.
l
CAN communication line, AT-104.
l
Control unit (RAM), Control unit (ROM), AT-216.
l
Control unit (EEP ROM), AT-218.
l
Battery
l
Others
4-2.
Check at idle
l
Engine Cannot Be Started In P and N Positions, AT-224.
l
In P Position, Vehicle Moves Forward or Backward When Pushed, AT-226.
l
In N Position, Vehicle Moves, AT-227.
l
Large Shock. N
,
R Position, AT-229.
l
Vehicle Does Not Creep Backward In R Position, AT-231.
l
Vehicle Does Not Creep Forward In D, 2nd or 1st Position, AT-234.
TROUBLE DIAGNOSIS — INTRODUCTION
Introduction (Cont’d)
AT-60
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст