Nissan Almera Tino V10. Manual — part 83
AT-56
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
TROUBLE DIAGNOSIS — INTRODUCTION
PFP:00000
Introduction
ECS00971
The TCM receives a signal from the vehicle speed sensor, throttle
position sensor or 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 EURO-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 oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, 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 replace-
ment of good parts.
A visual check only, may not find the cause of the problems. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow”. Refer to
.
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a drive ability complaint. The cus-
tomer can supply good information about such problems, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” like the exam-
ple (
) should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot drive ability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
SAT631IA
SAT632I
SEF234G
TROUBLE DIAGNOSIS — INTRODUCTION
AT-57
[EURO-OBD]
D
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AT
DIAGNOSTIC WORKSHEET
Information from Customer
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
❏
Continuous
❏
Intermittent (
times a day)
Symptoms
❏
Vehicle does not move.
(
❏
Any position
❏
Particular position)
❏
No up-shift
(
❏
1st
→
2nd
❏
2nd
→
3rd
❏
3rd
→
O/D)
❏
No down-shift
(
❏
O/D
→
3rd
❏
3rd
→
2nd
❏
2nd
→
1st)
❏
Lockup malfunction
❏
Shift point too high or too low.
❏
Shift shock or slip
(
❏
N
→
D
❏
Lockup
❏
Any drive position)
❏
Noise or vibration
❏
No kick down
❏
No pattern select
❏
Others
(
)
O/D OFF indicator lamp
Blinks for about 8 seconds.
❏
Continuously lit
❏
Not lit
Malfunction indicator (MI)
❏
Continuously lit
❏
Not lit
AT-58
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.
❏
Read the Fail-safe and listen to customer complaints.
AT-57, "Infor-
mation from
Customer"
2.
❏
CHECK A/T FLUID
❏
Leakage (Follow specified procedure)
❏
Fluid condition
❏
Fluid level
3.
❏
Perform STALL TEST and LINE PRESSURE TEST.
❏
Stall test — Mark possible damaged components/others.
❏
Torque converter one-way clutch
❏
Reverse clutch
❏
Forward clutch
❏
Overrun clutch
❏
Forward one-way clutch
❏
Low & reverse brake
❏
Low one-way clutch
❏
Engine
❏
Line pressure is low
❏
Clutches and brakes except high clutch and
brake band are OK
❏
Line Pressure test — Suspected parts:
4.
❏
Perform all ROAD TEST and mark required procedures.
4-
1.
Check before engine is started.
AT-70, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
❏
SELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCE-
DURE. — Mark detected items.
❏
PNP switch,
.
❏
A/T fluid temperature sensor,
.
❏
Vehicle speed sensor·A/T (Revolution sensor),
.
❏
Engine speed signal,
.
❏
Torque converter clutch solenoid valve,
.
❏
Line pressure solenoid valve,
.
❏
Shift solenoid valve A,
.
❏
Shift solenoid valve B,
.
❏
Accelerator pedal position (APP) sensor,
.
❏
Overrun clutch solenoid valve,
.
❏
PNP & overdrive control switches, and throttle position sensor,
.
❏
Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source),
.
❏
Vehicle speed sensor·MTR,
.
❏
CAN communication line,
.
❏
Control unit (RAM), control unit (ROM),
.
❏
Control unit (EEP ROM),
.
❏
Battery
❏
Others
4-
2.
Check at idle
❏
1. O/D OFF Indicator Lamp Does Not Come On,
.
❏
2. Engine Cannot Be Started In “P” And “N” Position,
.
❏
3. In “P” Position, Vehicle Moves Forward Or Backward When Pushed,
.
❏
4. In “N” Position, Vehicle Moves,
.
❏
5. Large Shock. “N”
→
“R” Position,
.
❏
6. Vehicle Does Not Creep Backward In “R” Position,
.
❏
7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position,
.
TROUBLE DIAGNOSIS — INTRODUCTION
AT-59
[EURO-OBD]
D
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AT
4.
4-
3.
Cruise test
AT-74, "3.
CRUISE
TEST"
AT-78,
"Cruise Test
— Part 1"
Part-1
❏
8. Vehicle Cannot Be Started From D
1
,
.
❏
9. A/T Does Not Shift: D
1
→
D
2
Or Does Not Kickdown: D
4
→
D
2
,
.
❏
10. A/T Does Not Shift: D
2
→
D
3
,
.
❏
11. A/T Does Not Shift: D
3
→
D
4
,
.
❏
12. A/T Does Not Perform Lock-up,
.
❏
13. A/T Does Not Hold Lock-up Condition,
.
❏
14. Lock-up Is Not Released,
.
❏
15. Engine Speed Does Not Return To Idle (Light Braking D
4
→
D
3
),
.
Part-2
❏
16. Vehicle Does Not Start From D
1
,
.
❏
9. A/T Does Not Shift: D
1
→
D
2
Or Does Not Kickdown: D
4
→
D
2
,
.
❏
10. A/T Does Not Shift: D
2
→
D
3
,
.
❏
11. A/T Does Not Shift: D
3
→
D
4
,
.
Part-3
❏
17. A/T Does Not Shift: D
4
→
D
3
When Overdrive Control Switch “ON”
→
“OFF”,
.
❏
15. Engine Speed Does Not Return To Idle (Light Braking D
4
→
D
3
),
.
❏
18. A/T Does Not Shift: D
3
→
2
2
, When Selector Lever “D”
→
“2” Position,
.
❏
15. Engine Speed Does Not Return To Idle (Light Braking D
4
→
D
3
),
.
❏
19. A/T Does Not Shift: 2
2
→
1
1
, When Selector Lever “2”
→
“1” Position,
.
❏
20. Vehicle Does Not Decelerate By Engine Brake,
.
❏
21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position
Sensor Circuit Checks),
.
❏
SELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCE-
DURE — Mark detected items.
❏
PNP switch,
.
❏
A/T fluid temperature sensor,
.
❏
Vehicle speed sensor·A/T (Revolution sensor),
.
❏
Engine speed signal,
.
❏
Torque converter clutch solenoid valve,
.
❏
Line pressure solenoid valve,
.
❏
Shift solenoid valve A,
.
❏
Shift solenoid valve B,
.
❏
Accelerator pedal position (APP) sensor,
.
❏
Overrun clutch solenoid valve,
.
❏
PNP & overdrive control switches, and throttle position sensor,
.
❏
A/T fluid temperature sensor and TCM power source,
.
❏
Vehicle speed sensor·MTR,
.
❏
CAN communication line,
❏
Control unit (RAM), control unit (ROM),
.
❏
Control unit (EEP ROM),
.
❏
Battery
❏
Others
5.
❏
For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.
AT-50, "Diag-
nostic Proce-
dure Without
CONSULT-II"
6.
❏
Perform all ROAD TEST and re-mark required procedures.
7.
❏
Perform DTC CONFIRMATION PROCEDURE for following MI indicating items and check out NG items.
Refer to
EC-55, "Emission-related Diagnostic Information"
.
EC section
❏
DTC (P0731) A/T 1st gear function,
.
❏
DTC (P0732) A/T 2nd gear function,
.
❏
DTC (P0733) A/T 3rd gear function,
.
❏
DTC (P0734) A/T 4th gear function,
.
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