2006 SUZUKI SWIFT High voltage

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4Check ESP ® control module power supply circuit
1) Turn ignition switch to OFF position.
2) Check for proper connection to ESP ® control module
connector at terminals “E85-1” and “E85-32”.
3) If OK, then turn ignition switch to ON position and measure voltage between each terminal of “E85-1”,
“E85-32” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5. “WHT/BLU” and/or
“WHT/RED” wire circuit
open.
5 Check ESP ® control module ground circuit
1) Turn ignition switch to OFF position.
2) Check for proper connection to ESP ® control module
connector at terminals “E85-16” and “E85-47”.
3) If OK, measure resistance between each terminal of “E85-16”, “E85-47” and vehicle body ground.
Are resistance less than 2
Ω? Go to Step 6. Ground circuit for ESP
®
control module open or
high resistance.
6 Check serial data circuit
1) Check if communication is possible by trying
communication with other c ontroller (ECM, BCM, P/S
control module or SDM).
Is it possible to commun icate with other controller? Go to Step 7. Repair open in common
section of serial data
circuit (“PPL/WHT” wire
circuit) used by all
controllers or short to
ground or power circuit
which has occurred
somewhere in serial
data circuit (“PPL/WHT”
wire circuit).
7 Check DLC power supply circuit
1) Turn ignition switch to ON position.
2) Measure voltage between terminal B of data link
connector and vehicle body ground.
Is voltage 10 – 12 V? Go to step 8. Terminal B circuit open
or shorted to ground.
8 Check DLC ground circuit
1) Turn ignition switch to OFF position.
2) Measure resistance between the following terminals;
• Terminal G of data link connector and vehicle body ground.
• Terminal G1 of data link connector and vehicle body ground.
Is each resistance 1
Ω or less? Go to step 9. Terminal G and/or G1
circuit open or high
resistance.
Step Action Yes No

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DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC C1028: Master Cylinder Pressure Sensor Circuit FailureS7RS0B4604031
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC Detecting Condition Trouble Area
Mechanical switch failure, fa ilure in switch wiring is
shorted to ground. • ESP
® OFF switch
• ESP ® OFF switch 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 ESP ® OFF switch condition
Is ESP
® OFF switch is OFF condition? Go to Step 3. ESP
® OFF switch
turned OFF condition
and recheck.
3 Check ESP ® OFF switch
1) Turn ignition switch to OFF position.
2) Remove ESP® OFF switch referring to “ESP ® OFF
Switch Removal and Installation”.
3) Check for proper connection at each terminal of ESP ®
OFF switch.
4) If OK, then check ESP ® OFF switch referring to “ESP ®
OFF Switch Inspection”.
Is it good condition? Go to Step 4. Replace ESP
® OFF
switch.
4 Check ESP ® OFF switch circuit
1) Disconnect ESP ® control module connector.
2) Check for proper connection to ESP ® control module
connector at “E85-7” terminal.
3) If OK, then check resistance between “E85-7” terminal and vehicle body ground.
Is resistance infinity? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. “LT GRN/RED” wire
circuit is shorted to
ground.
DTC Detecting Condition
Trouble Area
Input signal voltage from master cylinder pressure sensor
in ESP ® control module is too high or low. • Leakage or air in the hydraulic brake system
• Clearance between brake pad and disc too high
Step
Action YesNo
1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2.Go to “Electronic
Stability Program
System Check”.
2 Check brake system
1) Check brake system as follows.
• Leakage or air in the hydraulic brake system
• Clearance between brake pad and disc too high
Are they in good condition? Go to Step 3.
Repair, replace or
adjust.
3 Check sensor calibration
1) Calibrate master cylinder pressure sensor referring to
“Sensor Calibration”.
2) Clear all DTC(s) and recheck DTC.
Is DTC C1028 still detected? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly recheck. Master cylinder
pressure sensor
calibration was
incompleted.

Downloaded from www.Manualslib.com manuals search engine 4F-36 Electronic Stability Program:
DTC C1034: Yaw Rate / G Sensor Assembly Power Supply FailureS7RS0B4604032
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 [B]
E84
3
521
46
1
E85-16
E85-47
12V
12VE85-32
E85-1
E85-35GRNWHT
WHT/RED
WHT/BLU
E85-29E85-25
E85-37
E85-31
E84-3
E84-5
RED/BLK
BLK
BLK
WHT/BLKE84-2E84-1 12V
GRN/BLK
BLU/RED
23
5
6 4
7
6
GRN/ORN
I7RS0B460009-01
[A]: ESP ® control module connector (viewed from terminal side ) 2. Main fuse box 5. Yaw rate / G sensor assembly
[B]: Yaw rate / G sensor assembly connector (viewed from harness side) 3. Ignition switch 6. CAN driver
1. Battery 4. Junction block assembly 7. ESP ® hydraulic unit / control module assembly
DTC Detecting Condition Trouble Area
• Power supply voltage of yaw rate / G sensor assembly is too high when ignition switch OFF.
• Power supply voltage of yaw rate / G sensor assembly is too low when ignition switch ON. • Yaw rate / G sensor assembly power supply circuit
• ESP
® control module power supply circuit
• Yaw rate / G sensor assembly
• 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 yaw rate / G sensor assembly ground circuit
1) Turn ignition switch to OFF position.
2) Disconnect yaw rate / G se nsor assembly connector.
3) Check for proper connection to yaw rate / G sensor assembly connector terminals at “E84-3” and “E84-5”.
4) If OK, then measure voltage between connector terminal “E84-3” and vehicle body ground.
Is it 0 V? Go to Step 3.
Go to Step 4.
3 Check yaw rate / G sensor assembly power supply
circuit
1) Measure voltage between connector terminal “E84-3”
and “E84-5” with ignition switch turned ON.
Is it 10 – 14 V? Substitute a known-
good yaw rate / G
sensor assembly and
recheck.
Go to Step 4.

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DTC C1037: Steering Angle Sensor Power Supply FailureS7RS0B4604033
Wiring Diagram
DTC Detecting Condition and Trouble Area4
Check yaw rate / G sensor assembly 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 terminals at “E85-31” and “E85-37”.
4) If OK, then measure voltage between connector terminal “E85-37” and vehicle body ground.
Is it 0 V? Go to Step 5. “BLU/RED” wire circuit
is shorted to power
circuit.
5 Check yaw rate / G sensor assembly power supply
circuit
1) Measure resistance between the following points.
• Between terminal “E85-37” of module connector and terminal “E84-3” of sensor terminal.
• Between terminal “E85-31” of module connector and terminal “E84-5” of sensor terminal.
Are resistance less than 2
Ω? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly recheck. “BLU/RED” and/or
“GRN/BLK” wire circuit
open or high resistance.
Step
Action YesNo
[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
[C] G37
E46
124
53
67
891011121314124
53
67
891011
1213141516171819202122
WHTGRN
3
E85-13
E85-44REDWHT65E46-1E46-2
4 8
6
BLK/ORN
REDWHT
REDWHT
G37-4G37-2
G50-10G50-9
G50-2
6
2
1
7 910
G50-1
G50-3
GRN/ORN
WHT/RED
WHT
[B]
G50
109 321
I6RS0B460020-01
[A]: ESP® control module connector (viewed from
terminal side) 3. Ignition switch 8. ESP
® hydraulic unit control module assembly
[B]: Steering angle sensor connector (viewed from harness side) 4. Junction block assembly 9. Junction connector
[C]: BCM connector (viewed from harnes s side) 5. BCM (included in junction block
assembly) 10. To Combination meter and keyless start control
module
1. Battery 6. CAN driver
2. Main fuse box 7. Steering angle sensor
DTC Detecting Condition Trouble Area
Power supply voltage to steering angle sensor is to o low. • Steering angle sensor power supply circuit
• Steering angle sensor
• ESP® control module

Downloaded from www.Manualslib.com manuals search engine 4F-38 Electronic Stability Program:
DTC Troubleshooting
DTC C1038: Steering Angle Sensor Detect Rolling Counter Failure from ESP® Control ModuleS7RS0B4604034
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 fuse
1) Check circuit fuses for steering angle sensor and its
circuit.
Is it good condition? Go to Step 3. Replace fuse and check
for short circuit to
ground.
3 Check steering angle sensor power supply circuit
1) Turn ignition switch to OFF position.
2) Disconnect steering angle sensor connector.
3) Check for proper connection to steering angle sensor
connector terminals at “G50-1”, “G50-2” and “G50-3”.
4) If OK, then measure voltage between connector terminal “G50-3” and vehicle body ground.
Is it 10 – 14 V? Go to Step 4. “WHT/RED” wire circuit
open.
4 Check steering angle sensor power supply circuit
1) Measure voltage between connector terminal “G50-1”
and vehicle body ground with ignition switch turned ON.
Is it 10 – 14 V? Go to Step 5. “GRN/ORN” wire circuit
open.
5 Check steering angle sensor ground circuit
1) Turn ignition switch to OFF position.
2) Measure resistance between connector terminal “G50-2”
and vehicle body ground.
Is resistance less than 2
Ω? Go to Step 6. “BLK/ORN” wire circuit
open or high resistance.
6 Check steering angle sensor
1) Connect steering angle sensor connector.
2) Check steering angle sensor referring to “Steering Angle
Sensor On-Vehicle Inspection”.
Is it good condition? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. Substitute a known-
good steering angle
sensor and recheck.
DTC Detecting Condition
Trouble Area
ESP ® control module rolling counte r failure is detected by
steering angle sensor. • CAN communication circuit
• Steering angle sensor
• ESP
® control module

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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 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

Downloaded from www.Manualslib.com manuals search engine 4F-44 Electronic Stability Program:
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