2008 SUZUKI SWIFT Engine harness

Downloaded from www.Manualslib.com manuals search engine 4F-24 Electronic Stability Program:
Circuit Description
Operation (ON/OFF) of ABS warning lamp is controlled by ESP® control module through lamp driver module in
combination meter.
If antilock brake system is in good condition, ESP ® control module turns ABS warning lamp ON at the ignition switch
ON, keeps it ON for 2 seconds and then turns it OFF. If an abnormality in the system is detected, ABS warning lamp is
turned ON continuously by ESP ® control module. Also, it is turned ON continuously by lamp driver module when the
connector of ESP ® control module is disconnected.
Troubleshooting
Refer to “Troubleshooting” under “ESP ® Warning Lamp Does Not Come ON at Ignition Switch ON”.
ABS Warning Lamp Comes ON SteadyS7RS0B4604049
Wiring Diagram
Refer to “Wiring Diagram” under “ABS Warning Lamp Does Not Come ON at Ignition Switch ON”.
Circuit Description
Refer to “Circuit Description” u nder “ABS Warning Lamp Does Not Co me ON at Ignition Switch ON”.
Troubleshooting
Refer to “Troubleshooting” under “ESP ® Warning Lamp Comes ON Steady”.
EBD Warning Lamp (Brake Warning Lamp) Comes ON SteadyS7RS0B4604050
Wiring Diagram
[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
47WHTGRN
3
E85-13
E85-44REDWHT8 5E46-1E46-2
4
13
8
E85-16
E85-47BLKBLK
1110
12
BLK/ORN
REDWHT
REDWHT
G37-4G37-2
G28-10G28-8
G28-16
12V
12VE85-32E85-1
E85-35
WHT/REDWHT/BLU
GRN/ORN
8
2
1
9 1415
[B]
G37
E46
124
53
67
891011121314124
53
67
891011
1213141516171819202122
[C] G28
12345678910111213141516
17181920212223242526272829303132
12V
12V
6
7E46-5
L01-6
RED/BLK
RED/BLK
G28-31
RED/BLK
I6RS0B460011-01
[A]: ESP ® control module connector (viewed from terminal side) 4. Junction block assembly 10. EBD warning lamp (brake warning lamp)
[B]: BCM connector (viewed from harness side) 5. BCM (included in junction block
assembly) 11. ABS warning lamp
[C]: Combination meter connector (viewed from harness side) 6. Brake fluid level switch 12. Lamp driver module 1. Battery 7. Parking brake switch 13. ESP ® hydraulic unit / control module
assembly
2. Main fuse box 8. CAN driver 14. Junction connector
3. Ignition switch 9. Combination meter 15. To steering angle sensor

Downloaded from www.Manualslib.com manuals search engine 4F-26 Electronic Stability Program:
Serial Data Link Circuit CheckS7RS0B4604012
Wiring Diagram
Inspection
[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
47WHTGRN
3
E85-13REDWHT6 5E46-1E46-2
4
10
6
E85-16
E85-47BLKBLK
8
9
BLK/ORN
REDWHT
REDWHT
G37-4G37-2
G28-10G28-8
G28-16
G28-31
12V
12VE85-32E85-1
E85-35
WHT/REDWHT/BLU
GRN/ORN
6
2
1
7 1415 [B]
G37
E46
124
53
67
891011121314124
53
67
891011
1213141516171819202122
[C] G28
12345678910111213141516
17181920212223242526272829303132
12V
11
PPL/WHT
PPL/WHT
E85-33
E85-44
12
13
WHTWHT/REDB
G G1
RED/BLK
I6RS0B460012-01
[A]: ESP
® control module connector (viewed
from terminal side) 4. Junction block assembly 10. ESP
® hydraulic unit / control module assembly
[B]: BCM connector (viewed from harness side) 5. BCM (included in junction block
assembly) 11. Data link connector (DLC)
[C]: Combination meter connector (viewed from harness side) 6. CAN driver 12. To SDM
1. Battery 7. Combination meter 13. To ECM and P/S control module
2. Main fuse box 8. ESP ® warning lamp 14. Junction connector
3. Ignition switch 9. Lamp driver module 15. To steering angle sensor
Step Action YesNo
1 Check ESP ® warning lamp
1) Turn ignition switch to ON position.
Does ESP
® warning lamp come ON? Go to Step 2. Go to Step 6.
2 Check fuse
1) Turn ignition switch to OFF position.
Are main fuses for good condition? Go to Step 3. Replace fuse and check
for short.
3 Check ESP ® control module power supply circuit
1) Disconnect ESP ® control module connector.
2) Check for proper connection to ESP ® control module
connector at terminal “E85-35”.
3) If OK, then turn ignition switch to ON position and measure voltage between terminal “E85-35” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” wire circuit
open.

Downloaded from www.Manualslib.com manuals search engine 4F-30 Electronic Stability Program:
DTC Troubleshooting
DTC C1018: Brake Fluid Level Switch FailureS7RS0B4604027
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 DTC check for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP ®.
Are DTC C1034 and/or C1073 detected? Go to applicable DTC
diag. flow.
Go to Step 3.
3 Check sensor calibration
1) Calibrate yaw rate / G sensor assembly referring to
“Sensor Calibration”.
2) Clear all DTCs and check DTC for ESP ®.
Are DTC C1017 and/or C1023 still detected? Go to Step 4. Yaw rate / G sensor
assembly calibration is
incompleted.
4 Check yaw rate / G sensor assembly
1) Check yaw rate / G sensor assembly referring to “Yaw
Rate / G Sensor Assembly On-Vehicle Inspection”.
Is it good condition? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. Substitute a known-
good yaw rate / G
sensor assembly and
recheck.
[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]
E46
124
53
67
891011121314
E85-13
E85-44REDWHT4E46-1E46-2
124
12V3E46-5RED/BLK
I6RS0B460015-01
[A]: ESP
® control module connector (viewed from terminal side) 1. BCM 3. Brake fluid level switch
[B]: BCM connector (viewed from harness side) 2. ESP ® hydraulic unit control module assembly 4. CAN driver
DTC Detecting Condition Trouble Area
• Brake fluid level is too low.
• Input signal of brake fluid level switch to BCM is low level. • Brake fluid level
• Brake fluid level switch circuit
• Brake fluid level switch
•BCM
• ESP
® control module

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-31
DTC Troubleshooting
DTC 1020: Master Cylinder Pressure Sensor Power Supply FailureS7RS0B4604028
DTC Detecting Condition and Trouble Area
DTC Troubleshooting1) 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 Yes No
1 Was “Electronic Stability Pr ogram Check” performed? Go to Step 2. Go to “Electronic
Stability Program
System Check”.
2 Check brake fluid level
1) Check brake fluid level in reservoir.
Is brake fluid level upper than the minimum level? Go to Step 3. Replenish brake fluid to
reservoir.
3 DTC check for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP ®.
Is DTC U1073 and/or U1140 detected? Go to applicable diag.
flow.
Go to Step 3.
4 Check brake fluid level switch
1) Turn ignition switch to OFF position.
2) Disconnect brake fluid level switch connector.
3) Check for proper connection at each terminal of brake
fluid level switch connector.
4) If OK, then check brake fluid level switch referring to “Brake Fluid Level Switch Inspection in Section 9C”.
Is check result OK? Go to Step 5. Replace brake fluid
level switch.
5 Check brake fluid level switch circuit
1) Disconnect BCM connector.
2) Check for proper connection to BCM connector at “E46-
5” terminal.
3) If OK, then check resistance between “E46-5” terminal and vehicle body ground.
Is resistance infinity? Go to Step 6. “BLKL/RED” wire circuit
is shorted to ground.
6 Check BCM
1) Connect brake fluid level switch connector and BCM
connector.
2) Check voltage at “E46-5” terminal of BCM referring to “Inspection of BCM and its Circuits in Section 10B”.
Is voltage in good condition? Substitute a known-
good ESP
® hydraulic
unit / control module
assembly and recheck. Check BCM power and
ground circuit. If circuit
is OK, substitute a
known-good BCM and
recheck.
DTC Detecting Condition
Trouble Area
Power supply voltage to master cylinder pressure sensor
in ESP® hydraulic unit / control mo dule assembly is out of
specification. • ESP
® control module

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-33
2Check wheel speed sensor circuit
1) Turn ignition switch OFF.
2) Disconnect connector from ESP ® control module and
applicable wheel speed sensor coupler.
3) Check for proper connection of ESP ® control module
and wheel speed sensor coupler.
4) If connections are OK, che ck wheel speed sensor circuit
for the following.
• Resistance of both ESP ® control module connector
(1) terminals a pair of app licable sensor terminals is
no continuity (circuit short check)
• Resistance of applicable sensor terminal of ESP ®
control module connector and vehicle body ground is
no continuity (ground short check)
• Resistance of applicable sensor terminal of ESP ®
control module connector and corresponding terminal
of wheel speed sensor connector (2) in main harness
(for front sensor) or floor harness (for rear sensor) is
continuity (continuity check)
• Voltage of applicable sensor terminal of ESP ® control
module connector and vehicle body ground is 0 V with
ignition switch turned ON (power short check)
Are they in good condition? Go to Step 3. Repair or replace
defective circuit.
3 Check wheel speed sensor
1) Remove applicable wheel speed sensor.
2) Check sensor for damage or foreign material attached.
Is it in good condition? Go to Step 4. Clean, repair or replace.
4 Check wheel encoder
1) Check front and/or rear wheel encoder for the following
(remove front drive shaft and/or rear wheel hub
assembly):
• Encoder surface neither crack nor damaged
• No foreign material being attached
• Encoder not being eccentric
• Wheel bearing free from excessive play
Are they in good condition? Go to Step 5. Clean, repair or replace
front wheel bearing and/
or rear wheel hub
assembly.
5 Check wheel speed sensor installing condition
1) Install wheel speed sensor to knuckle.
2) Tighten sensor bolt to specified torque and check that
there is no clearance between sensor and knuckle.
Is it OK? Go to Step 6. Replace wheel speed
sensor.
Step Action Yes No
1
2“E85-2”“E85-3”“E85-5”
“E85-6”
“E85-11”
“E85-12”
“E85-14”
“E85-15”
I6RS0B460017-02

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.

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-37
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-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