2008 SUZUKI SWIFT meter wire

Downloaded from www.Manualslib.com manuals search engine Engine Electrical Devices: 1C-11
MAF and IAT Sensor On-Vehicle InspectionS7RS0B1306018
NOTE
Before performed this inspection, be sure to
read the “Precautions of ECM Circuit
Inspection in Section 1A”.

1) Disconnect negative (–) cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Connect voltmeter to “BLK/RED” wire terminal (2) of
MAF and IAT sensor connector (1) disconnected and
ground.
4) Turn ON ignition switch position and check that voltage is battery voltage.
If not, check if wire harness is open or connection is
poor.
5) Turn OFF ignition switch position and connect connector to MAF and IAT sensor.
6) Remove ECM from its bracket referring to “ECM Removal and Installation”.
7) Connect special tool between ECM and ECM connector referring to “Inspection of ECM and Its
Circuits in Section 1A”.
8) Turn ON ignition switch position and check MAF signal voltage between “C37-26” terminal circuit and
“C37-27” terminal circuit of special tool.
MAF signal voltage between “C37-26” terminal
circuit and “C37-27” termi nal circuit of special
tool
MAF signal voltage of MAF and IAT sensor with
ignition switch turned ON: 0.5 – 1.0 V
9) Start engine and check that voltage is lower than 5 V and it rises as engine speed increases.
MAF signal voltage between “C37-26” terminal
circuit and “C37-27” termi nal circuit of special
tool
MAF signal reference voltage of MAF and IAT
sensor at specified Idle speed: 1.3 – 1.8 V 10) If check result is not as
specified above, cause may
lie in wire harness, connec tor connection, MAF and
IAT sensor or ECM.
MAF and IAT Sensor Removal and InstallationS7RS0B1306019
CAUTION!
• Do not disassemble MAF and IAT sensor.
• Do not expose MAF and IAT sensor to any shock.
• Do not clean MAF and IAT sensor.
• If MAF and IAT sensor has been dropped, it should be replaced.
• Do not blow compressed air by using air gun or the like.
• Do not put finger or any other object into MAF and IAT sensor. Malfunction may
occur.

Removal
1) Disconnect negative (–) cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Remove air cleaner case (1).
4) Remove MAF and IAT sensor (2) from air cleaner case.
Installation
Reverse removal procedure noting the followings.
• Tighten MAF and IAT sensor screws to specified torque.
Tightening torque
MAF and IAT sensor screw (a): 1.5 N·m (0.15 kgf-
m, 1.1 lb-ft)
• Connect MAF and IAT sensor connector securely.
1. ECM
I3RB0A130009-01
“C37-27” “C37-26” 1
I4RS0A130009-01
1
2
I4RS0A130010-01
(a)
I4RS0A130011-01

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-8
Installation1) Install clamps to marked location on pipes. If clamp is deformed, its claw is bent or broken, replace it with
new one.
2) Install pipes with pipe clamps to vehicle.
3) Connect fuel hoses and pipes to each pipe referring to “Fuel Hose Disconnecting and Reconnecting”.
4) Connect negative cable at battery.
5) With engine OFF, turn igniti on switch to ON position
and check for fuel leaks.
Fuel Injector On-Vehicle InspectionS7RS0B1706007
1) Using sound scope (1) or such, check operating sound of injector (2) when engine is running or
cranking.
Cycle of operating sound should vary according to
engine speed.
If no sound or an unusual sound is heard, check
injector circuit (wire or coupler) or injector.
2) Disconnect connector (1) from injector, connect ohmmeter between terminals of injector and check
resistance.
If resistance is out of specification, replace.
Resistance of fuel injector
11.3 – 13.8 Ω at 20 °C, 68 °F
3) Connect connector to injector securely.
Fuel Injector Removal and InstallationS7RS0B1706008
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk or fire
and personal injury.

Removal 1) Relieve fuel pressure according to “Fuel Pressure Relief Procedure”.
2) Disconnect negative cable at battery.
3) Disconnect MAF sensor connector, and detach EVAP canister purge valve.
4) Remove air cleaner assembly with air intake pipe.
5) Disconnect fuel injector couplers.
6) Disconnect fuel feed hose from fuel delivery pipe (1).
7) Remove fuel delivery pipe bolts (2).
8) Remove fuel injector(s) (3).
I2RH0B170007-01
I2RH0B170008-01
2
1
3
3
I3RM0A170010-01

Downloaded from www.Manualslib.com manuals search engine 1I-3 Starting System:
Cranking System TestS7RS0B1904002
CAUTION!
Each test must be performed within 3 – 5
seconds to avoid coil from burning.

Pull-In Test
Connect battery to the magnetic switch as shown.
Check that plunger and pinion move outward.
If plunger and pinion don’t move, replace the magnetic
switch.
NOTE
Before testing, disconnect lead wire from
terminal “M” (2).

Hold-In Test
While connected as the figure with plunger out,
disconnect negative lead from terminal “M”.
Check that plunger and pinion remain out.
If plunger and pinion return inward, replace the magnetic
switch. Plunger and Pinion Return Test
Disconnect negative lead from starting motor body.
Check that plunger and pinion return inward.
If plunger and pinion don’t return, replace the magnetic
switch.
No-Load Performance Test
Connect battery and ammeter to starter as shown.
Check that starter rotates
smoothly and steadily with
pinion moving out. Check that ammeter indicates
specified current.
Specified current (No-load performance test)
90 A MAX. at 11 V
1. Terminal “S”
3. Lead wire (switch to motor)
I2RH01190002-01
I2RH01190003-01
I2RH01190004-01
I2RH01190005-01

Downloaded from www.Manualslib.com manuals search engine 1J-4 Charging System:
Diagnostic Information and Procedures
Battery InspectionS7RS0B1A04001
Common Causes of Failure
A battery is not designed to last indefinitely; however, with proper care, it will provide many years of service. If the
battery performs satisfactorily during te st but fails to operate properly for no apparent reason, the following are some
factors that may point to the cause of trouble:
• Accessories left on overnight or for an extended period without the generator operating.
• Slow average driving speeds for short periods.
• Electrical load exceeding generator output partic ularly with addition of aftermarket equipment.
• Defects in charging system such as high resistance, s lipping drive belt, loose generator output terminal, faulty
generator or voltage regulator, Refer to “Generator Symptom Diagnosis”.
• Battery abuse, including failure to keep battery cable terminals clean and tight or loose battery hold down.
• Mechanical problems in electrical sys tem such as shorted or pinched wires.
Visual Inspection
Check for obvious damage, such as cracked or broken case or cover, that could permit loss of electrolyte. If obvious
damage is noted, replace battery. Determine cause of damage and correct as needed.
Generator Symptom DiagnosisS7RS0B1A04002
CAUTION!
• Do not mistake polarities of “IG” terminal and “L” terminal.
• Do not create short circuit between “IG” and “L” terminals. Always connect these terminals through a lamp.
• Do not connect any load between “L” and “E” terminals.
• When connecting charger or booster battery to vehicle battery, refer to “Jump Starting in Case of Emergency”.

Trouble in charging system will show up as one or more of the following conditions:
1) Faulty indicator lamp operation.
2) An undercharged battery as evidenced by slow cranking or indicator dark.
3) An overcharged battery as evidenced by ex cessive spewing of electrolyte from vents.
Condition Possible cause Correction / Reference Item
Noisy generator Loose drive belt Adjust or replace drive belt.
Loose drive belt pulley Tighten by specified torque.
Loose mounting bolts Tighten by specified torque.
Worn or dirty bearings Replace.
Defective diode or stator Replace.
Charge light does not
light with ignition ON and
engine off Fuse blown
Replace fuse and check for shorted circuit.
Indicator lamp (LED) faulty Replace combination meter.
Wiring connection loose Tighten loose connection.
IC regulator or field coil faulty Replace.
Poor contact between brush and slip
ring Repair or replace.
Charge light does not go
out with engine running
(battery requires frequent
recharging) Drive belt loose or worn
Adjust or replace drive belt.
IC regulator or generator faulty Replace.
Wiring faulty Repair wiring.

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Generator Test (Undercharged Battery Check)S7RS0B1A04003
This condition, as evidenced by slow cranking or
indicator clear with dark or light yellow dot can be
caused by one or more of the following conditions even
though indicator lamp may be operating normal.
The following procedure also applies to cars with
voltmeter and ammeter.1) Make sure that undercharged condition has not been caused by accessories left on for extended period of
time.
2) Check drive belt for proper tension.
3) If battery defect is suspected, refer to “Battery Description”.
4) Inspect wiring for defects. Check all connections for tightness and cleanliness, battery cable connections
at battery, starting motor, ignition ground cable and
no “C” terminal circuit at ground.
5) Connect switch (6), load (5), battery (4), voltmeter (3) and ammeter (2) to generator (1) as shown in
figure.
Voltmeter: Set between generator “B” terminal
and ground.
Ammeter: Set between generator “B” terminal
and battery (+) terminal.
NOTE
Use fully charged battery.

6) Measure current and voltage.
No-Load Check 1) Run engine from idling up to 2000 rpm and read meters.
NOTE
Turn off switches of all accessories (wiper,
heater etc.).

Specification for undercharged battery (No-load
check)
Current: 10 A
Voltage: 14.2 – 14.8 V (at 20 °C, 68 °F)
NOTE
Consideration should be taken that voltage
will differ somewhat with regulator case
temperature as shown in figure.

2) Using service wire, ground “C” terminal (1) of
generator.
3) Measure voltage between “B” terminal of generator and body ground.
Voltage: 12.5 – 13.1 V (at 20 °C, 68 °F)
• If voltage is higher than standard value
If voltage is higher than standard value, check ground
of brushes.
If brushes are not grounded, replace IC regulator.
If voltage is lower than standard value, proceed to the
following check.
Load Check 1) Run engine at 2000 rpm and turn on head light and blower motor.
2) Measure current. If measure current is less than 30 A, repair or
replace generator.
IYSQ011A0007-01
[A]: Regulated voltage (V)
[B]: Heat sink temperature ( °C)
16.0
15.5
15.0
14.5
14.0
13.5
13.0
-30 0 20
[A]
[B]
68
22120 (˚C)
248 (˚F)
(V)
I6RS0B1A1002-01
I5JB0A1A0011-01

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-14
ABS Warning Light Comes ON SteadyS7RS0B4504009
Wiring Diagram
Refer to “ABS Warning Light Does Not Come ON at Ignition Switch ON”.
Circuit Description
Operation (ON/OFF) of ABS wa rning light is controlled by ABS contro l module through lamp driver module in
combination meter.
If the Antilock brake system is in good condition, ABS control module turns ABS warning lig ht 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 light is
turned ON continuously by ABS c ontrol module. Also, it is turned ON continuously by la mp driver module when the
connector of ABS control module is disconnected.
Troubleshooting 4 Check CAN communication circuit between combination
meter and ABS control module referring to “DTC U1073:
Control Module Communication Bus Off”.
Is CAN communication circuit in good condition? Go to Step 5.
Repair or replace.
5 1) Remove combination meter wit h ignition switch turned
OFF.
2) Check for proper connection to “RED/BLK” and “BLK/ ORN” wire of combinat ion meter connector.
3) If OK, turn ON ignition switch and measure voltage at “PPL/RED” wire of combi nation meter connector and
vehicle body ground.
Is it 10 – 14 V? Go to Step 6.
Repair power supply
circuit for combination
meter.
6 1) Measure resistance between “BLK/ORN” wire of combination meter connector and vehicle body ground.
Is resistance less than 2
Ω? Replace combination
meter.
“BLK/ORN” circuit open
or high resistance.
Step Action Yes No
Step
Action YesNo
1 1) Perform diagnostic trouble code check.
Is there any DTC(s)? Go to applicable DTC
diag. flow.
Go to Step 2.
2 Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
circuit for short to
ground.
3 1) Turn ignition switch to OFF.
2) Disconnect ABS control module connector.
3) Check for proper connection to ABS control module connector at terminals “E03-7”, “E03-13” and “E03-26”.
4) 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” circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS 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” circuit
open.

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.