2006 SUZUKI SWIFT power battery

Downloaded from www.Manualslib.com manuals search engine 6C-12 Power Assisted Steering System:
Scan Tool Data Definitions
Battery Voltage
This parameter indicates battery positive voltage.
TQS Power Supply (Torque Sensor Power Supply, V)
This parameter indicates the power supply voltage which
the P/S control module supplies to the torque sensor.
TQS Main Torque (Torque Sensor Main Torque, N ⋅m)
The torque sensor is installed to detect the steering force
and the steering directio n. It consists of two
potentiometers and the main torque sensor is one of
these.
TQS Sub Torque (Torque Sensor Sub Torque, N ⋅m)
The torque sensor is installed to detect the steering force
and the steering directio n. It consists of two
potentiometers and the sub-torque sensor is one of
these. Its output characteristics are compared with those
of the main torque sensor.
Assist Torque (N ⋅m)
This parameter is an internal parameter of the P/S
control module. It is obtained by computing the torque
sensor input signal. Motor Control (Motor Control Current, A)
Based on the input signal, the P/S control module
determines the assist amount
and controls the current to
the motor suitable for that a ssist amount. This parameter
indicates that control value.
Motor Monitor (Motor Monitor Current, A)
This parameter indicates the actually measured value of
the current flowing to the motor. The motor circuit
condition is diagnosed by co mparing this parameter with
“Motor Control” parameter described previously.
Vehicle Speed (km/h, MPH)
Vehicle speed signal is fed from BCM. P/S control
module determines the amount of power assist based on
this vehicle speed signal and the torque sensor signal.
Engine Speed (rpm)
Engine speed signal is fed from the ECM so that it can
be used for trouble diagnos is of the electric power
steering system.
Motor Volt (V)
This parameter indicates the voltage between motor
terminals.
Ignition switch (ON, OFF)
This parameter indicates the condition of the power
supply through the ignition switch.
Visual InspectionS7RS0B6304007
Visually check the following pats and system.
P/S System Symptom DiagnosisS7RS0B6304008
This section describes trouble diagnosis of the P/S system parts whose trouble is not indicated by the on-board
diagnostic system (self-diagnostic functi on). When no malfunction is indicated by the on-board diagnostic system
(self-diagnosis function) and those stee ring basic parts as described in “Steering Symptom Diagnosis in Section 6A”
are all in good condition, check the following power steer ing system parts which may be a possible cause for each
symptom of the steering. Inspection Item Referring section
Battery Level, leakage, color “Batte ry Description in Section 1J”
Connectors of electric wire
harness Disconnection friction “Intermittent and Poor
Connection Inspection in Section 00”
Fuses Burning “Cautions in Body Electric al System Servicing in Section 9A”
Parts Installation, damage
Other parts that can be checked visually
Condition Possible cause Correction / Reference Item
Steering wheel feels
heavy (Perform “Steering
Force Check” before
diagnosis.) Steering wheel installed improperly
(twisted)
Install steering wheel correctly.
Poor performance of torque sensor Check torque sensor referring to “Torque
Sensor and Its Circuit Inspection”.
Poor performance of P/S motor Check motor referring to “P/S Motor and Its
Circuit Inspection”.
Steering gear case assembly faulty Replace.
Poor performance of vehicle speed
signal from ECM Check vehicle speed signal circuit referring to
“DTC C1121 / C1123 / C1124: VSS Circuit
Failure”.

Downloaded from www.Manualslib.com manuals search engine 6C-32 Power Assisted Steering System:
DTC C1153: P/S Control Module Power Supply Circuit Voltage LowS7RS0B6304020
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
MBLK
REDE51-1
E51-2
12V
5
[A ]
12 3
4 5 67
89
11
10
12 13
141516
17 18 19 20
[B ]
1
2
LT GRN
/BLKE52-1 E49-1
GRNGRNWHTBLK
WHY
6
3
4
4
4
4
1 2
E49-2BLK
I7RS0B630011-01
[A]: Connector “E52” (viewed from harness side)
2. Ignition switch5. P/S control module
[B]: Connector “E49” (viewed from harness side) 3. Junction block assembly 6. Individual circuit fuse box No.1
1. Main fuse box 4. Fuse
DTC detecting condition Trouble area
Power supply voltage of P/S control module is less than 9
V for 5 seconds continuously
(1 driving cycle detection logic) • P/S control module power supply circuit
• Undercharged Battery
• P/S control module
Step
Action YesNo
1 Was “EPS System Check” performed? Go to Step 2.Go to “EPS System
Check”.
2 Battery voltage check
1) Check circuit fuse for P/S control module.
2) If OK, measure voltage between positive battery terminal
and vehicle body ground with engine running.
Is voltage 10 V or more? Go to Step 3.
Check charging system
referring to “Generator
Test (Undercharged
Battery Check) in
Section 1J”.
3 P/S control module power supply circuit check
1) Check power supply circuit and ground circuit for P/S
control module referring to “P/S Control Module Power
Supply and Ground Circuit Check”.
Is check result in good condition? Substitute a known-
good P/S control
module and recheck.
Repair defective circuit.

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DTC C1155: P/S Control Module FailureS7RS0B6304021
Wiring Diagram
Refer to “DTC C1153: P/S Control Module Power Supply Circuit Voltage Low”.
DTC Detecting Condition and Trouble Area
DTC Troubleshooting DTC detecting condition Trouble area
Internal memory (EEPROM) is data error.
(In this case, MIL does not light up)
or
Internal circuit is faulty.
or
Power supply voltage of P/S control module exceeded
17.5 V.
(1 driving cycle detection logic) • Overcharged Battery
• P/S control module
Step
Action YesNo
1 Was “EPS System Check” performed? Go to Step 2.Go to “EPS System
Check”.
2 P/S control module power supply and ground circuit
check
Check power supply circuit and ground circuit for P/S control
module referring to “P/S Control Module Power Supply and
Ground Circuit Check”.
Is check result in good condition? Go to Step 3.
Repair or replace
defective circuit.
3 Battery voltage check
1) Check voltage between positive (+) battery terminal and
vehicle body ground with engine speed at 3000 rpm.
Is voltage 15.5 V or less? Replace P/S control
module.
Check charging system
referring to “Generator
Test (Overcharged
Battery Check) in
Section 1J”.

Downloaded from www.Manualslib.com manuals search engine 6C-36 Power Assisted Steering System:
Voltage Check1) Remove console box.
2) Check for voltage at each terminal with co nnectors connected to the P/S control module.
NOTE
As each terminal voltage is affected by the battery voltage, confirm if the battery voltage is 11 V or
more when ignition switch is ON.
*: The voltage of this circuit may not be checked by voltmeter. If so, use oscilloscope.

Terminal Wire colorCircuit Normal voltage Remarks
E49-1 GRN Main power supply for
internal memory and P/S
motor 10 – 14 V
—
E49-2 BLK Ground for P/S control
module Below 0.3 V
—
E51-1 BLK Motor output 1 *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ”, “Reference
waveform No.2:
”and “Reference
waveform No.3: ”) • Engine idling and steering wheel at
straight position
• Voltage between “E51-1” and vehicle body ground
E51-2 RED Motor output 2 *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.1: ”, “Reference
waveform No.2: ” and “Reference
waveform No.3: ”) • Engine idling and steering wheel at
straight position
• Voltage between “E51-2” and vehicle body ground
E52-1 LT GRN/BLK Ignition switch signal for P/S
control module 10 – 14 V Ignition switch ON
E52-2 — —— —
E52-3 — —— —
E52-4 PPL Vehicle speed signal *0 – 1 V
↑↓
8 – 14 V
(“Reference
waveform No.9”
under “Inspection of
ECM and Its Circuits in Section 1A”.) • Ignition switch ON
•Front left tire tu
rned quickly with right
tire locked
E52-5 GRY “EPS” warning light 0 V “EPS” warning light OFF
E52-6 BLU Torque sensor signal (Sub) About 0 – 2.5 V
• Steering wheel with left turn
• Out put voltage varies linearly
depending on steering force
About 2.5 V Steering wheel at free
About 2.5 – 6 V • Steering wheel with right turn
• Out put voltage varies linearly
depending on steering force
E52-7 — —— —
E52-8 GRN Main power supply for torque
sensor About 12 V• Ignition switch ON
• Check voltage between “E52-8” and
“E52-9” terminals
E52-9 BRN Ground for torque sensors Below 0.3 V —
E52-10 — —— —

Downloaded from www.Manualslib.com manuals search engine 6C-46 Power Assisted Steering System:
P/S Control Module Removal and InstallationS7RS0B6306011
Removal1) Disconnect negative cable at battery.
2) Remove console box.
3) Disconnect connectors (1) from P/S control module (2).
4) Disconnect connector from yaw rate / G sensor
(ESP ® model).
5) Remove P/S control module (2) with bracket (3) from floor panel.
6) Separate P/S control module and bracket.
Installation
Reverse removal procedure for installation noting the
following.
• Tighten each screw to the specified torque. Tightening torque
P/S control module bracket screw (ABS model)
(a): 9 N·m (0.9 kgf-m, 6.5 lb-ft)
P/S control module bracket screw (ESP ® model)
(a): 7 N·m (0.7 kgf-m, 5.0 lb-ft)
P/S control module mounting screw (b): 5 N·m (
0.5 kgf-m, 3.7 lb-ft)
Torque Sensor and Its Circuit InspectionS7RS0B6306012
1) Remove console box.
2) With ignition switch turned OFF, connect scan tool to DLC or connect voltage tester between “E52-18” –
“E52-9” (main sensor) or “E52-6” – “E52-9” (sub
sensor) with connected connector (1) to P/S control
module. 3) Set torque wrench to stee
ring wheel referring to
“Steering Force Check” for checking steering force.
4) Turn ON ignition switch without engine running and select scan tool “Data list” mode due to check of
“TQS Main Torque”, “TQS Sub Torque” and “Assist
Torque” display on scan tool when steering wheel
turned left and right (if used).
5) Check that characteristic of torque sensor (main and sub) output voltage or scan tool data and steering
force is as following graph when steering wheel is
turned left and right. If sensor voltage or scan tool
data is out of specified value or does not vary linearly
as the following graph, check P/S control module
and its circuit.
If they are OK, replace steering gear case assembly.
1
(a)
2
3
(b)
I7RS0A630020-01
[A]: Steering force at left turn
[B]: Steering force at right turn
[C]: Steering wheel at free
[D]: “TQS Main Torque”, “TQS Sub Torque” and “Assist Torque” in “Data List” displayed on scan tool
E52
18
9
6
9
6 18
1
I6RS0C630024-01
I3RM0A630022-01
0
[C] [N.m]
MAX MAX
[B]
[A]
2.33 - 2.68 [V]
[D]
0.65 - 0.72
(0 - 0.4)
4.21 - 4.41
(5.1 - 5.6)
6.86
-6.86
0
6.86
- 6.86
I6RS0C630021-04

Downloaded from www.Manualslib.com manuals search engine Power Assisted Steering System: 6C-49
Special Tools and Equipment
Recommended Service MaterialS7RS0B6308001
NOTE
Required service material is also described in the following.
“Steering Gear Case Assembly Components”

Special ToolS7RS0B6308002
Material SUZUKI recommended product or Specification Note
Grease SUZUKI Super Grease E P/No.: 99000–25050)
Silicone sealant Silicone sealant P/No.: 99000–31120)
Thread lock cement Thread Lock Cement Super 1322 P/No.: 99000–32110 )
09943–5501009944–18310
Boot clamp plier Pinion torque checking
socket
))
SUZUKI scan tool
—
This kit includes following
items. 1. Tech 2, 2. PCMCIA
card, 3. DLC cable, 4. SAE
16/19 adapter, 5. Cigarette
cable, 6. DLC loop back
adapter, 7. Battery power
cable, 8. RS232 cable, 9.
RS232 adapter, 10. RS232
loop back connector, 11.
Storage case, 12. ) / )

Downloaded from www.Manualslib.com manuals search engine 7B-62 Air Conditioning System: Automatic Type
DTC B1541: HVAC Control Module Back-Up Power Supply MalfunctionS7RS0B7224017
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting11
Position sensor circuit check
1) Check air flow control actuator position sensor circuit
referring to Step 1 to Step 5 and Step 10 to Step 11 of
“DTC B1512: Air flow Control Actuator (Position Sensor)
and/or Its Circuit Malfunction”.
Is it in good condition? Go to Step 12. Repair circuit.
12 Air flow control actuator check
1) Check air flow control actuator referring to “Air Flow
Control Actuator Inspection”.
Is it in good condition? HVAC control module
faulty.
Air flow control actuator
faulty.
Step Action Yes No
WHT/RED
2 17812910
65 431516 14 13 12 11
G52
789101920121112
65 431718 16 15 14 13
G51
3
G52-16
I5RS0A722015-01
1. HVAC control module
2. Junction block assembly 3. Circuit fuse
DTC Detecting Condition Trouble Area
Back-up power supply voltage is lo wer than specified value continuously. • Battery voltage supply circuit
• HVAC control module
StepAction YesNo
1 DTC check
1) Turn ON ignition switch for 20 sec. or more.
2) Ignition switch turned OF F and connect scan tool to
DLC.
3) Turn ON ignition switch and check DTC.
Is there DTC B1541? Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
2 Battery voltage supply circuit check
1) Disconnect connector from HVAC control module with
ignition switch turned OFF.
2) Check for proper connection to HVAC control module connector at “G52-16” terminal.
3) If OK, measure voltage between “G52-16” terminal of HVAC control module connector and vehicle body
ground.
Is voltage 10 – 14 V? HVAC control module
faulty.
Circuit fuse blown and/
or “WHT/RED” wire
circuit open or short.

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Compressor Drive Belt Removal and
Installation
S7RS0B7226032
Refer to “Compressor Drive Belt Removal and
Installation”.
Compressor Assembly Removal and
Installation
S7RS0B7226033
Refer to “Compressor Assembly Removal and
Installation”.
Compressor Assembly ComponentsS7RS0B7226034
Refer to “Compressor Assembly Components”.
Magnet Clutch Removal and InstallationS7RS0B7226035
Refer to “Magnet Clutch Removal and Installation”.
Magnet Clutch InspectionS7RS0B7226036
Refer to “Magnet Clutch Inspection”.
Relief Valve InspectionS7RS0B7226039
Refer to “Relief Valve Inspection”.
Special Tools and Equipment
Special ToolS7RS0B7228001
SUZUKI scan tool
—
This kit includes following
items. 1. Tech 2, 2. PCMCIA
card, 3. DLC cable, 4. SAE
16/19 adapter, 5. Cigarette
cable, 6. DLC loop back
adapter, 7. Battery power
cable, 8. RS232 cable, 9.
RS232 adapter, 10. RS232
loop back connector, 11.
Storage case, 12.) / )