2007 SUZUKI SWIFT Cable wiring

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DTC C1113: Steering Torque Sensor (Main and Sub) Circuit CorrelationS7RS0B6304012
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
M
5V
BLK
RED
WHT BLU
GRN
BRN YEL
E51-1
E51-2
E52-18
E53-5
E53-7
E52-6
E52-8
E53-2
E52-9
E52-16
E52-19
GRY
[A ]
12 3
4 5 67
89
11
10
12 13
141516
17 18 19 20
5
67
12V
5V
5V
12V
REDE52-20E53-6
E53-4
E53-1
109
1
2
[B ]
[C ]
7654321
LT GRN
/BLKE52-1 E49-1
GRNGRNWHTBLK
WHY
8
3
4
4
4
4
1 2
E49-2BLK
I7RS0B630005-01
[A]: Connector “E52” (viewed from harness side)
3. Junction block assembly 8. Individual circuit fuse box No.1
[B]: Connector “E49” (viewed from harness side )4. Fuse 9. Torque sensor signal (sub) circuit
[C]: Connector “E53” (viewed from harness side) 5. P/S control module 10. Torque sensor signal (main) circuit
1. Main fuse box 6. Torque sensor
2. Ignition switch 7. Torque sensor amplifier
DTC detecting condition Trouble area
Voltage difference between torque sensor main signal and
sub signal is more than 0.6 V for 1 second continuously
(1 driving cycle detection logic) • Torque sensor signal circuit
• Torque sensor
• P/S control module
Step
Action YesNo
1 Was “EPS System Check” performed? Go to Step 2.Go to “EPS System
Check”.
2 DTC check
Is DTC C1114 and/or DTC C1119 indicated together? Go to applicable diag.
flow.
Go to Step 3.
3 Torque sensor signal (sub) circuit check
1) Check for P/S control module connector (“E52”) for
proper connection.
2) With ignition switch turned OFF, disconnect torque sensor connector.
3) Check for voltage between “E53-7” (“BLU” wire) terminal and body ground with ignition switch ON.
Is it about 5 V? Go to Step 4.
Go to Step 7.

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DTC TroubleshootingStep Action Yes No 1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check”.
2 DTC check
Is DTC C1153 and/or DTC C1155 indicated together? Go to applicable DTC
diag. flow.
Go to Step 3.
3 Torque sensor 5 V reference power supply circuit
voltage check
1) With ignition switch turned OFF, disconnect torque
sensor connector and check for proper terminal
connection to torque sensor connector.
2) If connections are OK, check for voltage between “E53- 6” (“RED” wire) terminal and body ground with ignition
switch ON.
Is it approx. 5 V? Go to Step 4. Go to Step 5.
4 Torque sensor 5 V reference power supply circuit check
1) With ignition switch turned OFF, connect torque sensor
connector.
2) Check for P/S control module connector (“E52”) for proper connection.
3) Turn ignition switch ON.
4) Check for voltage between “Torque sensor 5 V reference power supply circuit” terminal and body ground with
connector (“E52”) connected to the P/S control module.
Is it about 5 V? Substitute a known-
good P/S control
module and recheck.
Replace steering gear
case.
5 Torque sensor 5 V reference power supply circuit check
1) With ignition switch turned OFF, disconnect P/S control
module connector.
2) Check that “Torque sensor 5 V reference power supply circuit” is as following.
• Insulation resistance of “Torque sensor 5 V reference power supply circuit” wire is infinity between its
terminal and other terminal at torque sensor
connector.
• Wiring resistance of “Torque sensor 5 V reference power supply circuit” is less than 1 Ω.
• Insulation resistance of “Torque sensor 5 V reference power supply circuit” between its circuit and vehicle
body ground is infinity.
Is circuit in good condition? Replace P/S control
module.
Repair or replace
defective circuit.
20
E52
I4RS0A630013-02

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DTC Troubleshooting
DTC C1118: Steering Torque Sensor Failure Signal Circuit HighS7RS0B6304015
Wiring Diagram
Refer to “DTC C1117: Steering Torque Sensor Failure Signal Circuit Low”.
DTC Detecting Condition and Trouble AreaStep Action Yes No
1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check”.
2 DTC check
Is DTC C1113, C1114 and/or DTC C1119 indicated together? Go to applicable diag.
flow.
Go to Step 3.
3 Torque sensor internal failure signal circuit check
1) Check for P/S control module connector (“E52”) for
proper connection.
2) With ignition switch turned OFF, disconnect torque sensor connector.
3) Check for voltage between “E53-1” (“YEL” wire) terminal and body ground with ignition switch ON.
Is it about 5 V? Go to Step 4. Go to Step 5.
4 Torque sensor internal failure signal circuit check
1) With ignition switch turned OFF, connect torque sensor
connector.
2) Check that voltage between “E52-16” (“YEL” wire) terminal and body ground is about 5V at the moment of
ignition switch turned ON.
Is it about 5 V? Substitute a known-
good P/S control
module and recheck.
Replace steering gear
case.
5 Torque sensor internal failure signal circuit wire check
1) Disconnect P/S control module.
2) Check that torque sensor failure signal circuit is as
follows.
• Insulation resistance of wire harness is infinity between “Torque sensor internal failure signal circuit”
terminal and other terminal at torque sensor
connector.
• Insulation resistance between “Torque sensor internal failure signal circuit” and vehicle body ground is
infinity.
Is circuit in good condition? Substitute a known-
good P/S control
module and recheck.
Repair or replace
defective circuit.
DTC detecting condition
Trouble area
Torque sensor internal failure signal circuit voltage is more
than 3.7 V for 1 second continuously
(1 driving cycle detection logic) • Torque sensor signal circuit
• Torque sensor internal failure signal circuit
• Torque sensor
• P/S control module

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DTC TroubleshootingStep Action Yes No 1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check”.
2 DTC check
Is DTC C1113, C1114 and/or DTC C1119 indicated together? Go to applicable diag.
flow.
Go to Step 3.
3 Torque sensor internal failure signal voltage check
1) Check for P/S control module connector (“E52”) for
proper connection.
2) Check for voltage between “E52-16” (“YEL” wire) terminal and body ground with ignition switch ON.
Is voltage 0 – 1 V? Substitute a known-
good P/S control
module and recheck.
Go to Step 4.
4 Torque sensor internal failure signal circuit check
1) With ignition switch turned OFF, disconnect torque
sensor connector.
2) Check for voltage between “E53-1” (“YEL” wire) terminal and body ground with ignition switch ON.
Is it about 5 V? Go to Step 5. Go to Step 6.
5 Torque sensor internal failure signal circuit check
1) Disconnect P/S control module connector.
2) Check that torque sensor failure signal circuit is as
follows.
• Insulation resistance of wire harness is infinity between “Torque sensor internal failure signal circuit”
terminal and other terminal at torque sensor
connector.
Is circuit in good condition? Go to Step 7. Repair or replace
defective circuit.
6 Torque sensor internal failure signal circuit check
1) Disconnect P/S control module connector.
2) Check that torque sensor failure signal circuit is as
follows.
• Insulation resistance of wire harness is infinity between “Torque sensor internal failure signal circuit”
terminal and other terminal at torque sensor
connector.
• Wiring harness resistance of “Torque sensor internal failure signal circuit” is less than 1 Ω.
Is circuit in good condition? Substitute a known-
good P/S control
module and recheck.
Repair or replace
defective circuit.
7 Torque sensor signal circuit check
1) Check for torque sensor signal circuit referring to Step 3)
– 8) of “DTC C1113: Steering Torque Sensor (Main and
Sub) Circuit Correlation”.
Is torque sensor and its circuit in good condition? Replace steering gear
case.
Repair or replace
defective parts.

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DTC TroubleshootingStep Action Yes No 1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check”.
2 DTC check
DTC Check for ECM referring to “DTC Check in Section 1A”.
Is there any DTC detected? Go to applicable DTC
diag. flow.
Go to Step 3.
3 DTC check
1) Check ABS control module for DTC referring to “DTC
Check in Section 4E”.
Is there any DTC detected? Go to applicable DTC
diag. flow.
Go to Step 4.
4 Vehicle speed signal circuit check
1) With ignition switch turned OFF, disconnect connectors
from ECM.
2) Check ECM connector for proper connection.
3) If OK, turn ON ignition switch, measure voltage between “E23-25” wire terminal of ECM connector and body
ground.
Is voltage 4 – 5 V? Go to Step 6.
Go to Step 5.
5 Vehicle speed signal circuit check
1) With ignition switch turned OFF, disconnect P/S control
module connector “E52”.
2) Check for proper terminal connection to P/S control module connector and ECM connector.
3) If connections are OK, chec k that “Vehicle speed signal
circuit” is as following.
• Insulation resistance of “Vehicle speed signal circuit” wire harness is infinity between its terminal and other
terminals at ECM and P/S control module connector.
• Wiring resistance of “Vehicle speed signal circuit” is less than 1 Ω.
• Insulation resistance of “Vehicle speed signal circuit” between its circuit and vehicle body ground is infinity.
• Circuit voltage between “Vehicle speed signal” circuit and ground circuit is 0 – 1 V with ignition switch turned
ON.
Is circuit in good condition? Replace P/S control
module.
Repair or replace
defective circuit.
6 ECM voltage check
1) Connect P/S control mo dule and ECM connectors.
2) Check ECM for vehicle speed signal output referring to “Inspection of ECM and Its Circuits in Section 1A”.
Is check result in good condition? Replace P/S control
module.
Replace ECM.

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DTC TroubleshootingStep Action Yes No 1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check”.
2 DTC check
1) Clear DTC(s) referring to “DTC Clearance”.
2) Run engine at idle speed.
3) Check if any DTC is detecte d referring to “DTC Check”.
Is DTC C1122 still detected? Go to Step 3. Check intermittent
trouble referring to
“Intermittent and Poor
Connection Inspection
in Section 00”.
3 DTC check
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is there any DTC related to engine speed? Go to applicable DTC
diag. flow.
Go to Step 4.
4 Engine speed signal circuit check
1) With ignition switch turned OFF, disconnect P/S control
module connector.
2) Check P/S control module connector for proper connection.
3) If OK, turn ON ignition switch, measure voltage between “E52-12” wire terminal of P/S control module connector
and vehicle body ground.
Is voltage 10 – 14 V? Go to Step 6.
Go to Step 5.
5 1) With ignition switch turned OFF, disconnect ECM connector.
2) Check for proper connection to the P/S control module and ECM at each “Engine speed signal circuit” terminal.
3) If connections are OK, chec k that “Engine speed signal
circuit” is as following.
• Insulation resistance of “Engine speed signal circuit” wire is infinity between its terminal and other terminals
at ECM and P/S control module connector.
• Wiring resistance of “Engine speed signal circuit” terminal are less than 1 Ω.
• Insulation resistance of “Engine speed signal circuit” between its terminal and vehicle body ground is
infinity.
• Circuit voltage between “Engine speed signal circuit” and ground circuit is 0 – 1 V with ignition switch turned
ON.
Is circuit in good condition? Go to Step 6.
Repair engine speed
signal circuit.
6 ECM voltage check
1) Connect P/S control mo dule and ECM connectors.
2) Check ECM for engine speed signal and vehicle speed signal output voltage to P/S control module referring to
“Inspection of ECM and Its Circuits in Section 1A”.
Is check result in good condition? Substitute a known-
good P/S control
module and recheck.
Substitute a known-
good ECM and recheck.

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DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
DTC C1141:
Voltage between both motor drive circuits is more than 8.5
V or less than 0.2 V for 0.5 seconds continuously while
motor is not drived
(1 driving cycle detection logic)
DTC C1142:
Measured motor drive current is more than 10 A as
compared with target motor drive current.
(1 driving cycle detection logic)
DTC C1143:
Measured motor drive current is more than 50 A.
(1 driving cycle detection logic)
DTC C1145:
Measured motor drive current is less than 2 A
continuously for more than 3 seconds even though target
motor drive current is more than 4 A.
or
Measured motor drive current is less than 0.8 A for total 1
second even though motor cont rol duty is more than 90%
while target motor drive current is less than 8 A.
(1 driving cycle detection logic) • P/S motor circuit
• P/S motor
• P/S control module
Step
Action YesNo
1 Was “EPS System Check” performed? Go to Step 2.Go to “EPS System
Check”.
2 DTC check
Is DTC C1153 and/or DTC C1155 indicated together? Go to applicable DTC
diag. flow.
Go to Step 3.
3 Power supply and ground circuit check
1) Check P/S control module power supply and ground
circuit referring to “P/S Control Module Power Supply
and Ground Circuit Check”.
Is it in good condition? Go to Step 4.
Repair or replace
defective circuit.
4 Motor circuit check
1) With ignition switch tuned OFF, disconnect P/S motor
connector (“E51”).
2) Check that P/S motor circuit is as follows. • Insulation resistance of wire harness is infinity between each “P/S motor circuit” terminal and other
terminal at P/S motor connector.
• Wiring harness resistance of each “P/S motor circuit”
is less than 1 Ω.
• Insulation resistance between each “P/S motor circuit” and vehicle body ground is infinity.
• Circuit voltage between each “P/S motor circuit” and ground circuit is 0 – 1 V with ignition switch turned
ON.
Is circuit in good condition? Go to Step 5.
Repair or replace
defective circuit.
5 P/S motor check
1) Check motor and its circuit referring to “P/S Motor and Its
Circuit Inspection”.
Is motor in good condition? Substitute a known-
good P/S control
module, and recheck.
Replace the steering
gear case assembly.

Downloaded from www.Manualslib.com manuals search engine Heater and Ventilation: 7A-3
Diagnostic Information and Procedures
Heater and Ventilation Symptom DiagnosisS7RS0B7104001
ConditionPossible cause Correction / Reference Item
Blower motor does not
operate with blower
speed selector ON Fuse blown
Check related fuses, and then check for short
circuit to ground.
Blower motor relay faulty Check blower motor relay referring to “Blower
Motor Relay Inspection”.
Blower motor resistor faulty Check blower motor resistor referring to
“Blower Motor Resistor Inspection”.
Blower speed selector faulty Check blower speed selector referring to
“Blower Speed Selector Inspection”.
Blower motor faulty Check blower motor referring to “Blower Motor
Inspection”.
Wiring or grounding faulty Repair as necessary.
Incorrect temperature
output Temperature control cable broken or
bent (manual A/C) Check temperature control cable.
Temperature control lever faulty (manual
A/C) Check temperature control lever.
Incorrect installation of temperature
control cable (manual A/C) Check position and adjust it as necessary.
Temperature control door assembly
broken Repair temperature control door assembly.
Air ducts clogged Repair air ducts.
Heater core leaked or clogged Replace heater core.
Heater hoses leaked or clogged Replace heater hoses.
Thermostat faulty Check thermostat referring to “Thermostat
Inspection in Section 1F”.
Temperature control actuator faulty
(automatic A/C) Check temperature control actuator referring to
“Temperature Control Actuator Inspection in
Section 7B”.
HVAC control module faulty (automatic
A/C) Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit in Section 7B”.
Wiring or grounding faulty (automatic A/
C) Repair as necessary.
Air outlet port does not
change or does not agree
with air flow selector’s
position even if air flow
selector is changed Air flow control cable broken or bent
(manual A/C)
Check air flow control cable.
Air flow control lever faulty (manual A/C) Check air flow control lever.
Incorrect installation of air flow control
cable (manual A/C) Check position and adjust it as necessary.
Air flow control door assembly broken Repair air flow control door assembly.
Air ducts leaked or clogged Repair air ducts.
Air flow control actuator faulty
(automatic A/C) Check air flow control actuator referring to “Air
Flow Control Actuator
Inspection in Section
7B”.
HVAC control module faulty (automatic
A/C) Check HVAC control module referring to
“Inspection of HVAC Control Module and Its
Circuit in Section 7B”.
Wiring or grounding faulty (automatic A/
C) Repair as necessary.
Air intake door does not
change even if air intake
mode is changed Air intake door broken
Repair air intake door.
Air intake control actuator faulty Check air intake control actuator referring to
“Air Intake Control Actuator Inspection”.
Air intake selector faulty Check air intake selector referring to “Air Intake
Selector Inspection”.
Wiring or grounding faulty Repair as necessary.