Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-41
DTC C1057: ESP® Control Module Power Supply Circuit FailureS7RS0B4604053
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
[A]
E85
161
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3233
34
35
36
37
38
39
40
41
42
43
44
45
46
47
WHT/BLU
1
2
3
12V
E85-1
BLKE85-16
E85-47BLK
I6RS0B460023-02
[A]: ESP
® control module connector (viewed from terminal side) 2. Main fuse box
1. Battery 3. ESP ® hydraulic unit / control module assembly
DTC Detecting Condition Trouble Area
• ESP ® control module power supply voltage is too high.
• ESP ® control module power supply voltage is too low. • ESP
® control module power supply circuit
• ESP ® control module
Step Action YesNo
1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2.Go to “Electronic
Stability Program
System Check”.
2 Check power supply circuit from battery
1) Disconnect ESP ® hydraulic unit / control module
connector with ignition switch turned OFF.
2) Check for proper connection to ESP ® control module
connector at terminals “E83-1”, “E85-16” and “E85-47”.
3) If OK, then turn ignition switch to ON position and measure voltage between terminals “E85-1” and “E85-
16”, “E85-47”.
Are voltage 9.7
± 0.3 V or more? Go to Step 5. Go to Step 3.
3 Check ESP ® control module ground circuit
1) Measure resistance between each terminal of “E85-16”, “E85-47” and vehicle body ground.
Is resistance less than 2
Ω? Go to Step 4. “BLK” wire circuit in
open or high resistance.
4 Check power supply circuit from battery
1) Measure voltage between positive battery terminal and
vehicle body ground with engine running.
Is voltage 9.7
± 0.3 V or more? Imperfect short between
“WHT/BLU” wire circuit
and vehicle body
ground.
Check charging system
referring to “Generator
Test (Undercharged
Battery Check) in
Section 1J”.
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DTC C1061: Pump Motor and/or Motor Driver Circuit FailureS7RS0B4604054
Wiring Diagram
DTC Detecting Condition and Trouble Area5
Check power supply circuit from battery
1) Measure voltage between terminals “E85-1” and “E85-
16”, “E85- 47" with engine running.
Are voltage 18
± 1.0 V or less? Poor connection of
“E85-1”, “E85-16” and/
or “E85-47” terminals. If
the terminals are in
good condition,
substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. Check charging system
referring to “Generator
Test (Overcharged
Battery Check) in
Section 1J”.
Step Action Yes No
[A]
E85
161
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3233
34
35
36
37
38
39
40
41
42
43
44
45
46
47
4
51
2
WHT/RED3
12V
M
12V
BLK
BLK
E85-16
E85-47
E85-32
I6RS0B460024-02
[A]: ESP
® control module connector (viewed from
terminal side) 2. Main fuse box 4. Pump motor
1. Battery 3. Pump motor driver (transistor) 5. ESP® hydraulic unit / control module assembly
DTC Detecting ConditionTrouble Area
Defective pump motor and/or motor power supply voltage
is too low. • Pump Motor and/or Motor Driver power supply circuit
• ESP
® control module
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DTC Troubleshooting
DTC C1063: Solenoid Valve Power Supply Driver Circuit FailureS7RS0B4604055
Wiring Diagram
DTC Detecting Condition and Trouble AreaStep Action Yes No
1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2. Go to “Electronic
Stability Program
System Check”.
2 Check ESP ® control module power supply circuit
1) Turn Ignition switch to OFF position.
2) Disconnect ESP ® control module connector.
3) Check for proper connection to ESP ® control module
connector at terminal “E85-32”.
4) If OK, then measure voltage between terminal “E85-32” of module connector and body ground.
Is it 10 – 14 V? Go to Step 3. “WHT/RED” circuit
open.
3 Check ESP ® control module ground circuit
1) Measure resistance between terminal “E85-16” and “E85-47” ESP ® control module connector and vehicle
body ground.
Are resistance less than 1
Ω? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. Ground circuit for ESP
®
control module open or
high resistance.
3 4 12V
GRN/ORNGRN
7
5V12V
WHTE85-35
E85-1WHT/BLU5
6
8
1
2
[A]
E85
161
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3233
34
35
36
37
38
39
40
41
42
43
44
45
46
47
I6RS0B460025-02
[A]: ESP ® control module connector (viewed from
terminal side) 3. Ignition switch 6. Power control unit
1. Battery 4. Junction block assembly 7. Solenoid valve power supply driver (transistor)
2. Main fuse box 5. ESP® hydraulic unit / control
module assembly 8. To solenoid valve
DTC Detecting Condition
Trouble Area
• Mismatching solenoid output and solenoid monitor is detected.
• Solenoid valve circuit is shorted to power or ground circuit in ESP ® control module • Solenoid valve power supply circuit
• ESP
® control module
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DTC Troubleshooting
DTC 1071: ESP® Control Module Internal DefectS7RS0B4604056
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
1) Turn ignition switch to OFF position.
2) Check for proper connection from harness to ESP ® control module.
3) If OK, substitute an ESP ® hydraulic unit / control module assembly with correct part number.
4) Recheck system.
Step
Action YesNo
1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2.Go to “Electronic
Stability Program
System Check”.
2 Check power supply circuit from battery
1) Check battery voltage.
Is it about 11 V or higher? Go to Step 3.
Check charging system
referring to “Battery
Inspection in Section
1J” and “Generator Test
(Undercharged Battery
Check) in Section 1J”.
3 Check fuse
1) Check main fuse for solenoid and its terminal.
Is it in good condition? Go to Step 4.
Replace fuse and check
for short circuit to
ground.
4 Check solenoid valve power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect control module connector.
3) Check for proper connection to ESP® control module at
terminal “E85-1”.
4) If OK, then measure voltage between connector terminal “E85-1” and vehicle body ground.
Is it 10 – 14 V? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. “WHT/BLU” circuit
imperfect short to
ground.
DTC Detecting Condition
Trouble Area
ESP ® control module internal defect is detected. • ESP ® control module
Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-1
Transmission / Transaxle
Automatic Transmission/Transaxle
Precautions
Precautions in Diagnosing TroubleS7RS0B5100001
• Do not disconnect couplers from TCM, battery cable from battery, TCM ground wire harness from engine or
main fuse before checking the diagnostic information
(DTC, freeze frame data, etc.) stored in TCM memory.
Such disconnection will clea r memorized information
in TCM memory.
• Diagnostic information stored in TCM memory can be cleared as well as checked by using SUZUKI scan
tool or generic scan tool. Before using scan tool, read
its Operator’s (Instruction) Manual carefully to have
good understanding as to what functions are available
and how to use it.
It is indistinguishable wh ich module turns on MIL
because not only ECM but also TCM turns on MIL.
Therefore, check both ECM and TCM for DTC when
MIL lights on.
When checking TCM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by TCM.
– Generic scan tool displays DTC detected by each of ECM and TCM simultaneously.
• Using SUZUKI scan tool the diagnostic information stored in TCM memory can be checked and cleared
as well. Before its use, be sure to read Operator’s
Manual supplied with it carefully to have good
understanding of its functions and usage.
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• TCM replacement
– When substituting a known-good TCM, check that all relays and actuators have resistance of
specified value.
Neglecting this check may result in damage to good
TCM.
• Communication of ECUs , ECM, TCM, ABS control
module, keyless start control module and BCM is
established by CAN (Controller Area Network).
Therefore, handle CAN communication line with care
referring to “Precaution for CAN Communication
System in Section 00”.
Precautions for Disassembly and ReassemblyS7RS0B5100002
When repairing automatic transaxle, it is necessary to
conduct the on-vehicle test to investigate where the
cause of the trouble lies first.
Then whether overhaul should be done or not is
determined. If the transaxle is disassembled without
such preliminary procedure, not only the cause of the
trouble would be unknown, but also a secondary trouble
may occur and often time would be wasted.
As the automatic transaxle consists of high precision
component, the following cautions should be strictly
observed when handling its parts in disassembly and
reassembly.
• Disassembling valve body assembly is prohibited
essentially. However, a few parts can be
disassembled. When disassembling valve body
component parts, confirm whether their parts are
allowed to disassemble or not referring to “Valve Body
Assembly Disassembly and Reassembly”.
• When component part of forward clutch, direct clutch, 2nd brake and/or O/D and 2nd coast brake, namely
clutch disc, brake disc, retaining plate and/or
separator plate, have been replaced, all learned
contents, which have been stored in TCM memory by
executing learning control, should be initialized
referring to “Learning Control Initialization”.
• Make sure to wash dirt off from the transaxle so that no such dirt will enter the transaxle during
dismounting and remounting.
• Select a clean place free from dust and dirt for overhauling.
• Place a rubber mat on the work bench to protect parts from damage.
• Work gloves or shop cloth should not be used. (Use a nylon cloth or a paper towel.)
• When separating the case joint, do not pry with a screwdriver or such but tap with a plastic hammer
lightly.
• Make sure to wash dirt off from the transaxle so that no such dirt will enter the transaxle during
disassembly and reassembly.
• Wash the disassembled parts in ATF (Automatic Transaxle Fluid) or kerosene (using care not to allow
ATF or kerosene to get on your face, etc.) and confirm
that each fluid passage is not clogged by blowing air
into it. But use kerosene to wash the discs, resin
washers and rubber parts.
• Replace each gasket, oil seal and O-ring with a new one.
• Apply ATF to sliding or rotating parts before
reassembly.
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Visual InspectionS7RS0B5104002
Visually check the following parts and systems.
Malfunction Indicator Lamp (MIL) CheckS7RS0B5104003
Refer to the same item in “Malfunction Indicator Lam p (MIL) Check in Section 1A” for checking procedure.
Transmission Warning Light CheckS7RS0B5104004
1) Turn ignition switch ON.
2) Check that transmission warning light lights for about 2 – 4 sec. and then goes OFF.
If anything faulty is found, advance “Transmission Warn ing Light Circuit Check – Light Does Not Come “ON” at
Ignition Switch ON” or “Transmission Warning Light Circu it Check – Light Remains “ON” at Ignition Switch ON”.
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”
• A/T select cable ----- installation “S elect 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
Also check the following items at engine start, if possible.
• Transmission warning light (if equipped) ----- Operation “Transmission Warning Light Check”
• Malfunction indicator lamp ----- Operation “Malfunction Indicator Lamp (MIL) Check”
• Charge warning lamp ----- Operation “Generator Symptom Diagnosis in Section 1J”
• Engine oil pressure warning lamp ----- Operation “Oil Pressure Warning Ligh t Symptom Diagnosis in
Section 9C”
• Engine coolant temp. meter ----- Operation “Engine Coolant Temperature (ECT) Meter
Symptom Diagnosis in Section 9C”
• Other parts that can be checked visually
I4RS0A510008-01
Downloaded from www.Manualslib.com manuals search engine 6C-4 Power Assisted Steering System:
Schematic and Routing Diagram
EPS System Wiring Circuit DiagramS7RS0B6302001
M
5V
BRNRED/
BLU
BLK
RED
WHT
BLU
GRN
BRN YEL
E52-11
E52-14E52-12
E23-4
E23-26
E23-25 E51-1
E51-2
E52-18
E53-5
E53-7
E52-6
E52-8
E53-2
E52-9
E52-16
E52-19
GRY
PPL/WHT
[A ]
[E ]
12 3
4 5 67
89
11
10
12 13
141516
17 18 19 20
1
2
[B ][C ]
1210 9 8 7654 3 21
16 15 14 13 12 11
26 25 24 2322 21 20 19 18 17
32 31 30 29 28 27
[D]
5V
PPL
E52-4
11
12
13 14
15
10
9
16
12V
5V
5V
12V
REDE52-20E53-6
E53-4
E53-1
7654321
5
REDRED/
BLKWHT
6WHTWHT/BLKWHTBLK
12V
12V
17BLK
GRY
LT GRN
/BLK
E52-1
E52-5
E49-1
GRNGRNWHTBLK
WHY
G28-25G28-31
RED/BLK
18
3
4
4
7 8
4
4
1 2
4
E49-2BLK
I7RS0B630002-01
[A]: Connector “E52” (viewed from harness side) 4. Fuse 12. P/S motor
[B]: Connector “E49” (viewed from harness side ) 5. Left-front wheel speed sensor 13. Shield
[C]: Connector “E51” (viewed from harness side) 6 . Right-front wheel speed sensor 14. Torque sensor
[D]: Connector “G28” (viewed from harness side) 7. Combination meter 15. Torque sensor amplifier
[E]: Connector “E53” (viewed from harness side) 8. “EPS” warning light16. To ECM, BCM, Air bag SDM and ABS control module assembly
1. Main fuse box 9. Date link connector (DLC) 17. ABS/ESP ® control module
2. Ignition switch 10. ECM18. Individual circuit fuse box No.1
3. Junction block assembly 11. P/S control module
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”.