Ecm wire SUZUKI SWIFT 2008 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine Starting System: 1I-2
ConditionPossible cause Correction / Reference Item
Motor not running (No
operating sound of
magnetic switch) Shift lever switch is not in P or N, or not
adjusted (A/T)
Shift in P or N, or
adjust switch. (A/T)
Battery run down Recharge battery.
Battery voltage too low due to battery
deterioration Replace battery.
Poor contact in battery terminal
connection Retighten or replace.
Loose grounding cable connection Retighten.
Fuse set loose or blown off Tighten or replace.
Poor contacting action of ignition switch
and magnetic switch Replace.
Lead wire coupler loose in place Retighten.
Open-circuit between ignition switch and
magnetic switch Repair.
Open-circuit in pull-in coil Replace magnetic switch.
Brushes are seating poorly or worn
down Repair or replace.
Poor sliding of plunger and/or pinion Repair.
Faulty starting motor control relay “Main Relay, Fuel Pump Relay and Starting
Motor Control Relay Inspection in Section 1C”.
Faulty ECM and its circuit “Inspection of ECM and Its Circuits in Section
1A”.
Motor not running
(Operating sound of
magnetic switch heard) Battery run down
Recharge battery.
Battery voltage too low due to battery
deterioration Replace battery.
Loose battery cable connections Retighten.
Burnt main contact point, or poor
contacting action of magnetic switch Replace magnetic switch.
Brushes are seating poorly or worn
down Repair or replace.
Weakened brush spring Replace.
Burnt commutator Replace armature.
Layer short-circuit of armature Replace.
Crankshaft rotation obstructed Repair.
Starting motor running
but too slow (small
torque) (If battery and
wiring are satisfactory,
inspect starting motor) Insufficient contact
of magnetic switch
main contacts Replace magnetic switch.
Layer short-circuit of armature Replace.
Disconnected, burnt or worn
commutator Repair commutator or replace armature.
Worn brushes Replace brush.
Weakened brush springs Replace spring.
Burnt or abnormally worn end bush Replace bush.
Starting motor running,
but not cranking engine Worn pinion tip
Replace over-running clutch.
Poor sliding of over-running clutch Repair.
Over-running clutch slipping Replace over-running clutch.
Worn teeth of ring gear Replace flywheel (M/T) or drive plate (A/T).
Noise Abnormally worn bush Replace bush.
Worn pinion or worn teeth of ring gear Replace over-running clutch, flywheel (M/T) or
drive plate (A/T).
Poor sliding of pinion (failure in return
movement) Repair or replace.
Worn internal or planetary gear teeth Replace.
Lack of oil in each part Lubricate.
Starting motor does not
stop running Fused contact points of magnetic switch
Replace magnetic switch.
Short-circuit between turns of magnetic
switch coil (layer short-circuit) Replace magnetic switch.
Failure of returning action in ignition
switch Replace.

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-6
1. Battery12. Pump motor23. Internal memory
2. Main fuse box 13. Solenoid valves24. Solenoid valve driver (transistor)
3. Ignition switch 14. Right-rear wheel speed sensor25. ECM
4. Circuit fuse box 15. Left-rear wheel speed sensor26. BCM
5. Combination meter 16. Right-front wheel speed sensor27. Brake fluid level switch
6. ABS warning light 17. Left-front wheel speed sensor28. Parking brake switch
7. EBD warning light (Brake warning light) 18. Data link connector29. CAN driver
8. Lamp driver module 19. To ECM, SDM and BCM
9. ABS hydraulic unit / control module assembly 20. Stop lamp
Terminal Wire color Circuit
E03 1
WHT/RED ABS pump motor driver (Transistor)
2— —
3— —
4— —
5 PPL/WHT Data link connector
6 WHT CAN communication line (low) for BCM
7 GRN/ORN Ignition switch
8 WHT CAN communication line (low) for ECM
9— —
10 RED CAN communication line (high) for ECM
11 — —
12 RED CAN communication line (high) for BCM
13 BLK Ground
14 WHT/BLU Solenoid valve power supply driver (Transistor)
15 LT GRN/BLK Left–rear wheel speed sensor (–)
16 LT GRN Left–rear wheel speed sensor (+)
17 — —
18 WHT Right–front wheel speed sensor (+)
19 WHT/BLK Right–front wheel speed sensor (–)
20 — —
21 RED/BLK Left–front wheel speed sensor (–)
22 RED Left–front wheel speed sensor (+)
23 — —
24 YEL Right–rear wheel speed sensor (+)
25 BRN Right–rear wheel speed sensor (–)
26 BLK Ground

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-16
Serial Data Link Circuit CheckS7RS0B4504011
Inspection
WHT/BLU
BLK12V
12
BLK
E03-14
E03-13
E03-26
WHT/RED
GRN/ORNE03-7WHT/BLUGRN
1
2
3
47
RED/BLK
6
5
11
E03-112V
[A]
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
BLK/ORN
PPL/WHT
8E03-5
912V
+BB
G
B
G1
E03-12
E03-6
REDWHT
11
G28-8
G28-10
REDWHTE46-1
E46-2RED
RED
WHT
WHT
10
11
G37-2
G37-4
I6RS0C450008-01
[A]: ABS hydraulic unit / control module connector (viewed from terminal side)
1. Battery 4. Circuit fuse box 7. Lamp driver module 10. BCM
2. Main fuse box 5. Combination meter 8. Data link connector (DLC) 11. CAN driver
3. Ignition switch 6. ABS warning light 9. To ECM, BCM and SDM 12. ABS hydraulic unit / control module assembly
Step Action YesNo
1 1) Turn ignition switch to ON position.
Does ABS warning light come ON? Go to Step 2.
Go to Step 6.
2 1) Turn ignition switch to OFF position. Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
for short.
3 1) Disconnect ABS hydraulic unit / control module connector.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminal “E03-7”.
3) If OK then turn ignition switch to ON position and measure voltage between terminal “E03-7” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” wire circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-1” and “E03-
14”.
3) If OK then turn ignition switch to ON position and measure voltage between each terminal of “E03-1”,
“E03-14” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5.
“WHT/RED” and / or
“WHT/BLU” wire circuit
open.

Downloaded from www.Manualslib.com manuals search engine 4E-17 ABS:
5 1) Turn ignition switch to OFF position.2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-13” and
“E03-26”.
3) If OK, measure resistance between each terminal of “E03-13”, “E03-26” and vehicle body ground.
Are resistance less than 2
Ω? Go to Step 6. Ground circuit for ABS
hydraulic unit / control
module open or high
resistance.
6 1) Check if communication is possible by trying communication with other controller (ECM, BCM 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 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 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.
9 1) Turn ignition switch to OFF position. 2) Check proper connection at “E03-5” (“PPL/WHT” wire) terminal for serial data circuit.
3) If OK, then check resistance between “E03-5” (“PPL/ WHT” wire) terminal and “PPL/WHT” wire terminal (2) for
serial data circuit in DLC (1).
Is resistance 1
Ω or less? Substitute a known-
good ABS hydraulic unit
/ control module and
recheck.
Repair high resistance
or open in “PPL/WHT”
wire circuit for anti lock
brake system.
Step Action Yes No
I4RS0A450013-02

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 Electronic Stability Program: 4F-27
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

Downloaded from www.Manualslib.com manuals search engine 4F-28 Electronic Stability Program:
DTC C1016: Stop Lamp Switch Circuit FailureS7RS0B4604026
Wiring Diagram9
Check serial data circuit
1) Turn ignition switch to OFF position.
2) Check proper connection at “E85-33” (“PPL/WHT” wire)
terminal for serial data circuit.
3) If OK, then check resistance between “E85-33” (“PPL/ WHT” wire) terminal and “PPL/WHT” wire terminal (2) for
serial data circuit in DLC (1).
Is resistance 1
Ω or less? Substitute a known-
good ESP
® hydraulic
unit / control module
and recheck. Check high resistance
or open in “PPL/WHT”
wire circuit for electronic
stability program. If
circuit is OK, substitute
a known-good BCM and
recheck.
Step Action Yes No
“E85-33”
2
1
I6RS0B460013-01
[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]
21
E23 34
1819
5671011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 5826
27
28
15
30
56 4832 31343536374042 39 38
44
45 43 41 33
1213
2382
1
E85-42
E85-46
56RED
WHT
4
6 7
E23-3
E23-18
12V
PNK3
GRN/WHT
E23-20
I6RS0B460014-01
[A]: ESP
® control module connector (viewed from te rminal side) 3. Stop lamp switch 6. CAN driver
1. Battery 4. Stop lamp 7. ESP ® hydraulic unit control module assembly
2. Main fuse box 5. ECM

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-29
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC C1017 / C1023: Yaw Rate / G Sensor Assembly FailureS7RS0B4604025
DTC C1017: Lateral G Sensor Range / Performance
DTC C1023: Yaw Rate Sensor Failure
DTC Detecting Condition and Trouble AreaDTC Detecting Condition Trouble Area
Vehicle behavior and stop lamp switch signal is disagreed
for specified time. • Back up light switch circuit
• Back up light switch
•ECM
• 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 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 U1100 detected? Go to applicable diag.
flow.
Go to Step 3.
3 Check stop lamp switch circuit
1) Check stop lamp, stop lamp (brake pedal) switch and
their circuit referring to “Brake Light Symptom Diagnosis
in Section 9B”.
Are they in good condition? Go to Step 4.
Repair or replace.
4 Check ECM circuit for stop lamp switch
1) Disconnect connectors from ECM.
2) Check for proper connection to “E23-20” wire of ECM
connector.
3) If connections are OK, check stop lamp switch circuit for
the following.
• Resistance of “GRN/WHT” wire terminal of stop lamp switch between stop lamp switch connector and ECM
connector is less than 1 Ω (continuity check)
• Resistance between “GRN/WHT” wire terminal of stop lamp switch connector and vehicle body ground is
infinity (ground short check)
• Voltage of between “GRN/WHT” wire terminal of stop switch connector and vehicle body ground is 0 V with
ignition switch tuned ON (power short check)
Are they in good condition? Substitute a known-
good ECM and recheck.
If DTC C1016 is still
detected, substitute a
known-good ESP
®
hydraulic unit / control
module assembly and
recheck. Repair or replace
defective wire.
DTC Detecting Condition
Trouble Area
C1017:
Lateral G sensor signal is out of specified range.
C1023:
• Yaw rate sensor signal is out of range.
• Vehicle behavior and yaw rate signal is disagreed. • Yaw rate / G sensor assembly
• 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.

Downloaded from www.Manualslib.com manuals search engine 5A-70 Automatic Transmission/Transaxle:
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by us ing scan tool and turn ignition switch ON.
3) Shift select lever to each of “L”, “2”, “3”, “D”, “N”, “R” and “P” ranges for 20 seconds each.
4) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting DTC detecting condition Trouble area
“3” position switch ON signal is inputted although transmission range
switch signal is inputted P, R, N or L. range. • “3” position switch or its circuit malfunction
•BCM
•TCM
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.
2 “3” position switch circuit for operation
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF.
2) Turn ignition switch ON and check “3” position switch signal on scan tool data display when shifting select
lever to each range.
Does indicate “3” position swit ch (O/D OFF switch) condition
OFF when shifting select lever to “P”, “R”, “N” and “L” range? Substitute a known-
good TCM and recheck.
Go to Step 3.
3 “3” position switch signal inspection
With ignition switch ON, check voltage between “L01-8”
terminal of BCM coupler and ground.
“3” position switch specifications
Shift select lever to “3” or “2” range: Battery voltage
Shift select lever to other above range: 0 V
Is the result as specified? Substitute a known-
good BCM and recheck.
Go to Step 4.
4 Check “3” position switch operation
Is it in good condition? “LT GRN” wire shorted
to ground.
Replace “3” position
switch.