Throttle SUZUKI SX4 2006 1.G Service Owners Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2006, Model line: SX4, Model: SUZUKI SX4 2006 1.GPages: 1556, PDF Size: 37.31 MB
Page 651 of 1556

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-3
General Description
A/T DescriptionS6RW0D5101001
This automatic transaxle is electronic control full automatic transaxle with forward 3-speed plus overdrive (O/D) and
reverse 1-speed.
The torque converter is a 3-element, 1-step and 2-phase type and is equipped with an automatically controlled lock-up
mechanism.
The gear change device consists of a ravigneau type planetary gear unit, 3 multiple disc type clutches, 3 multiple disc
type brakes and 2 one-way clutches.
The hydraulic pressure control device consists of a valve body assembly, pressure control solenoid valve (linear
solenoid), 2 shift solenoid valves, TCC solenoid valve (TCC pressure control solenoid valve) (linear solenoid) and a
timing solenoid valve. Optimum line pressure complying with engine torque is produced by the pressure control
solenoid valve in dependence upon control signal from transmission control module (TCM). This makes it possible to
control the line pressure with high accuracy in accordance with the engine power and running conditions to achieve
smooth shifting characteristics and high efficiency.
A clutch-to-clutch control system is provided for shifting between 3rd gear and 4th gear. This clutch-to-clutch control
system is made to function optimally, so that hydraulic pressure controls such as shown below are conducted.
• When upshifting from 3rd gear to 4th gear, to adjust the drain hydraulic pressure at releasing the forward clutch, a
timing solenoid valve is used to switch a hydraulic passage with an orifice to another during shifting.
• When downshifting from 4th gear to 3rd gear, to adjust the line pressure applied to the forward clutch at engaging
the forward clutch, a timing solenoid valve is used to switch a hydraulic passage with an orifice to another during
shifting.
• When upshifting from 3rd gear to 4th gear with engine throttle opened, to optimize the line pressure applied to the
forward clutch at releasing the forward clutch, the learning control is processed to compensate the switching timing
of the timing solenoid at every shifting.
• When downshifting from 4th gear to 3rd gear with engine throttle opened, to optimize the line pressure applied to
the forward clutch at engaging the forward clutch, the learning control is processed to compensate the line pressure
at every shifting.
Employing the ravigneau type planetary gear unit and this clutch-to-clutch control system greatly simplifies the
construction to make possible a lightweight and compact transaxle.
A line pressure learning control is conducted to provide optimum shifting time at every upshifting with engine throttle
opened. If long upshifting time is detected, the subsequent line pressure applied during upshifting is intensified. On the
contrary, if short upshifting time is detected, the subsequent line pressure applied during upshifting is weakened.
Page 657 of 1556

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-9
CAN Communication System DescriptionS6RW0D5101006
Refer to “CAN Communication System Description in Section 1A” for CAN communication System description. TCM
communicates control data with each control module as follows.
TCM Transmission Data
TCM Reception Data
DATA TCMTransmit
Transmission oil temperarure
signal
Torque request signal
Vehicle speed pulse signal
Transmission warning light
signal
MIL control signal
Transmission actual gear position
signal
A/T select lever position signal
Transmission diagnostic trouble
code (DTC)
ECMCombination
meterBCM
4WD control
module
(if equipped)
I6RW0D510001-01
Engine torque signal
Accelerator pedal position signal
Engine speed signal
Throttle position signal
A/C compressor clutch signal
Engine coolant temperature signal
Vehicle speed pulse signal
Brake pedal switch signal
Driving cycle active
Warm up cycle active Reception data from ECM
I6RW0D510002-02
Page 660 of 1556

Downloaded from www.Manualslib.com manuals search engine 5A-12 Automatic Transmission/Transaxle:
Automatic Gear Shift TableS6RW0D5102002
Automatic gear shift schedule is shown in the following table. Test-drive the vehicle on a flat road in the D position.
M16A Engine Model
1.Shift Point in D, 3 and/or 2 position
2. Lock-up point in D and/or 3 positionThrottle opening (%) Shift Vehicle speed km/h (mph) Remark
UP shiftOver 85%1st → 2nd 48 – 53 (30 – 33) D, 3, 2 range
2nd → 3rd 98 – 103 (61 – 64) D, 3 range
3rd → 4th 158 – 163 (98 – 101) D range
50%1st → 2nd 35 – 40 (22 – 25) D, 3, 2 range
2nd → 3rd 69 – 74 (43 – 46) D, 3 range
3rd → 4th 106 – 111 (66 – 69) D range
10%1st → 2nd 11 – 16 (7 – 10) D, 3, 2 range
2nd → 3rd 23 – 28 (14 – 17) D, 3 range
3rd → 4th 51 – 56 (32 – 35) D range
DOWN shiftOver 85%4th → 3rd 144 – 149 (89 – 93) D range
3rd → 2nd 91 – 96 (57 – 60) D, 3 range
2nd → 1st 42 – 47 (26 – 29) D, 3, 2 range
50%4th → 3rd 73 – 78 (45 – 48) D range
3rd → 2nd 36 – 41 (22 – 25) D, 3 range
2nd → 1st 11 – 16 (7 – 10) D, 3, 2 range
10%4th → 3rd 30 – 35 (19 – 22) D range
3rd → 2nd 15 – 20 (9 – 12) D, 3 range
2nd → 1st 6 – 11 (4 –7) D, 3, 2 range
Lock-up
clutch statusThrottle
opening (%)Vehicle speed km/h (mph) Remark
3rd gear lock-upONOver 85% 123 – 128 (76 – 80) D, 3 range
50% 90 – 95 (56 – 59) D, 3 range
OFFOver 90% 105 – 110 (65 – 68) D, 3 range
50% 76 – 81 (47 – 50) D, 3 range
4th gear lock-upONOver 85% 158 – 163 (98 – 101)•D range
• Except throttle opening shift from low
to high at vehicle speed 160 km/h
(100 mph) or more with Lock-up ON
condition.
50% 132 – 137 (82 – 85) D range
OFFOver 90% 144 – 149 (89 – 93) D range
50% 122 – 127 (76 – 79) D range
Page 661 of 1556

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-13
M15A Engine Model
1.Shift Point in D, 3 and/or 2 position
2. Lock-up point in D and/or 3 positionThrottle opening (%) Shift Vehicle speed km/h (mph) Remark
UP shiftOver 90%1st → 2nd 50 – 55 (31 - 34) D, 3, 2 range
2nd → 3rd 100 – 105 (62 - 65) D, 3 range
3rd → 4th 162 – 167 (101 - 104) D range
50%1st → 2nd 34 – 39 (21 - 24) D, 3, 2 range
2nd → 3rd 76 – 81 (47 - 50) D, 3 range
3rd → 4th 120 – 125 (75 - 78) D range
10%1st → 2nd 15 – 20 (9 - 12) D, 3, 2 range
2nd → 3rd 45 – 50 (28 - 31) D, 3 range
3rd → 4th 66 – 71 (41 - 44) D range
DOWN shiftOver 95%4th → 3rd 144 – 149 (89 – 93) D range
3rd → 2nd 87 – 92 (54 – 57) D, 3 range
2nd → 1st 44 – 49 (27 – 30) D, 3, 2 range
50%4th → 3rd 66 – 71 (41 – 44) D range
3rd → 2nd 26 – 31 (16 – 19) D, 3 range
2nd → 1st 6 – 11 (4 – 7) D, 3, 2 range
10%4th → 3rd 53 – 58 (33 – 36) D range
3rd → 2nd 15 – 20 (9 – 12) D, 3 range
2nd → 1st 6 – 11 (4 – 7) D, 3, 2 range
Lock-up
clutch statusThrottle
opening (%)Vehicle speed km/h (mph) Remark
3rd gear lock-upONOver 90% 138 – 143 (86 – 89) D, 3 range
50% 118 – 123 (73 – 76) 3 range
OFFOver 95% 128 – 133 (80 – 83) D, 3 range
50% 108 – 113 (67 – 70) 3 range
4th gear lock-upONOver 90% 162 – 167 (101 – 104)•D range
• Except throttle opening shift from low
to high at vehicle speed 160 km/h
(100 mph) or more with Lock-up ON
condition.
50% 132 – 137 (82 – 85) D range
OFFOver 95% 152 – 157 (94 – 98) D range
50% 113 – 118 (70 – 73) D range
Page 663 of 1556

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-15
6. Output shaft speed sensor (VSS) 14. Transmission range sensor
EngineTorque converter with
torque converter clutch
Oil pumpRegulator valves
in valve body
Planetary gear
unit
Clutches and
brakes
Control valves
in valve body
Shift solenoid valves,
TCC solenoid valve and
Timing solenoid valve Pressure control
solenoid valve
Final gear
reduction unit
Engine control module (ECM)
Body control module (BCM)
Combination meter
· Engine torque signal
· Engine speed signal
Transmission control module (TCM)
· Torque request signal
· Throttle position signal
· Accelerator pedal position signal
· Engine coolant temperature signal
· Brake pedal switch signal
· Driving cycle active
· Warm up cycle active
Accelerator pedal
position sensor
Crank shaft
position sensor
Engine coolant
temperature sensor
Input shaft speed sensor
Brake light switch
“3” position switch
Transmission range sensor
Transmission fluid
temperature sensor
Output shaft speed
sensor (VSS)
Power transmission
Fluid pressure circuit
Electric signal
Data link connector
· Transmission diagnostic trouble code (DTC) · Vehicle speed pulse signal
· Transmission warning light signal
· A/T select lever position signal
· Transmission actual gear position signal
· Transmission oil temperature signal · MIL control signal
ABS control module
· A/C compressor clutch signal
I6RW0D510005-01
Page 666 of 1556

Downloaded from www.Manualslib.com manuals search engine 5A-18 Automatic Transmission/Transaxle:
Step 2. DTC / Freeze Frame Data Check, Record and
Clearance
First, referring to “DTC Check”, check DTC and pending
DTC. If DTC exists, print or write down DTC and freeze
frame data and then clear malfunction DTC(s) by
referring to “DTC Clearance”. Malfunction DTC indicates
malfunction in the system but it is not possible to know
from it whether the malfunction is occurring now or it
occurred in the past and normal condition has been
restored. In order to know that, check symptom in
question according to Step 5 and then recheck DTC
according to Step 6.
Diagnosing a trouble based on the DTC in this step only
or failure to clear the DTC in this step may result in an
faulty diagnosis, trouble diagnosis of a normal circuit or
difficulty in troubleshooting which is otherwise
unnecessary.
Step 3 and 4. Visual Inspection
As a preliminary step, be sure to perform visual check of
the items that support proper function of the engine and
automatic transaxle referring to “Visual Inspection”.
Step 5. Trouble Symptom Confirmation
Check trouble symptoms based on information obtained
in “Step 1. Customer Complaint Analysis: ” and “Step 2.
DTC / Freeze Frame Data Check, Record and
Clearance: ”.
Also, reconfirm DTC according to “DTC Confirmation
Procedure” described in each DTC flow.
Step 6 and 7. Rechecking and Record of DTC and
Freeze Frame Data
Refer to “DTC Check” for checking procedure.Step 8. A/T Basic Check and A/T Symptom
Diagnosis
Perform basic check of A/T according to “A/T Basic
Check” first. When the end of the flow has been reached,
check the parts of the system suspected as a possible
cause referring to “A/T Symptom Diagnosis” and based
on symptoms appearing on the vehicle (symptoms
obtained through steps of customer complaint analysis,
trouble symptom confirmation and/or A/T basic check)
and repair or replace faulty parts, if any.
Step 9. Troubleshooting for DTC
Based on the DTC indicated in Step 6 / 7 and referring to
“applicable DTC flow”, locate the cause of the trouble,
namely in a sensor, switch, wire harness, connector,
actuator, TCM or other part and repair or replace faulty
parts.
Step 10. Check for Intermittent Problem
Check parts where an intermittent trouble is easy to
occur (e.g. wire harness, connector, etc.), referring to
“Intermittent and Poor Connection Inspection in Section
00” and related circuit of DTC recorded in Step 2.
Step 11. Final Confirmation Test
Confirm that the problem symptom has gone and the
vehicle is free from any abnormal conditions. If what has
been repaired is related to the malfunction DTC, clear
the DTC once and check to ensure that no malfunction
DTC is indicated.
Visual InspectionS6RW0D5104002
Visually check the following parts and systems.
Inspection item Referring
• A/T fluid ----- level, leakage, color “Automatic Transaxle Fluid Level Inspection in
Section 0B”
• A/T fluid hoses ----- disconnection, looseness, deterioration “A/T Fluid Cooler Hoses Replacement”
• Throttle cable (if equipped) ----- play (under warm engine),
installation
• A/T select cable ----- installation “Select Cable Removal and Installation”
• Engine oil ----- level, leakage “Engine Oil and Filter Change in Section 0B”
• Engine coolant ----- level, leakage “Engine Coolant Change in Section 0B”
• Engine mountings ----- play, looseness, damage “Engine Assembly Removal and Installation in
Section 1D”
• Suspension ----- play, looseness “Suspension, Wheels and Tires Symptom
Diagnosis in Section 2A”
• Drive shafts ----- damage “Front Drive Shaft Assembly On-Vehicle Inspection
in Section 3A”
• Battery ----- indicator condition, corrosion of terminal “Battery Inspection in Section 1J”
• Connectors of electric wire harness ----- disconnection, friction “Electronic Shift Control System Components
Location”
• Fuses ----- burning
• Parts ----- installation, damage
• Bolts ----- looseness
• Other parts that can be checked visually