2007 SUZUKI SWIFT P2138

Downloaded from www.Manualslib.com manuals search engine 1-ii Table of Contents
DTC P0123: Throttle / Pedal Position Sensor / Switch “A” (Main) Circuit High ....................... 1A-85
DTC P0131 / P0132: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-
1) ..................................................................... 1A-88
DTC P0133: O2 Sensor (HO2S) Circuit Slow
Response (Sensor- 1) ...................................... 1A-91
DTC P0134: O2 Sensor (HO2S) Circuit No Activity Detected (Sensor -1) ........................... 1A-92
DTC P0137 / P0138: O2 Sensor (HO2S) Circuit Low Voltage / High Voltage (Sensor-
2) ..................................................................... 1A-94
DTC P0140: O2 Sensor (HO2S) Circuit No Activity Detected (Sensor -2) ........................... 1A-97
DTC P0171 / P0172: Fuel System Too Lean / Rich ................................................................. 1A-98
DTC P0222: Throttle / Pedal Position Sensor / Switch “B” (Sub) Circuit Low ....................... 1A-100
DTC P0223: Throttle / Pedal Position Sensor / Switch “B” (Sub) Circuit High ...................... 1A-102
DTC P0300 / P0301 / P0302 / P0303 / P0304: Random / Multiple Cylin der Misfire Detected
/ Cylinder 1 / Cylinder 2 / Cylinder 3 /
Cylinder 4 Misfire Detected ........................... 1A-105
DTC P0327 / P0328: Knoc k Sensor 1 Circuit
Low / High ..................................................... 1A-107
DTC P0335: Crankshaft Position (CKP) Sensor “A” Circuit .......................................... 1A-109
DTC P0340: Camshaft Position (CMP) Sensor “A” Circuit .......................................... 1A-111
DTC P0350: Ignition Coil Primary / Secondary Circuit ............................................................ 1A-114
DTC P0401 / P0402: Exhaust Gas Recirculation Flow Insufficient Detected /
Excessive Detected ...................................... 1A-116
DTC P0403: Exhaust Gas Recirculation Control Circuit ................... ............................ 1A-118
DTC P0420: Catalyst System Efficiency
below Threshold ................ ............................ 1A-120
DTC P0443: Evaporativ e Emission System
Purge Control Valve Circuit ........................... 1A-122
DTC P0480: Fan 1 (Radiator Cooling Fan) Control Circuit ................... ............................ 1A-124
DTC P0500: Vehicle Speed Sensor “A” Malfunction .................................................... 1A-128
DTC P0532: A/C Refrigerant Pressure Sensor “A” Circuit Low ... ............................... 1A-130
DTC P0533: A/C Refrigerant Pressure Sensor “A” Circuit High ................................. 1A-132
DTC P0601 / P0602 / P0607: Internal Control Module Memory Check Sum Error / Control
Module Programming Error / Control Module
Performance ................................................. 1A-134
DTC P0616: Starter Relay Circuit Low............ 1A-135
DTC P0617: Starter Relay Circuit High ........... 1A-136
DTC P0620: Generator Control Circuit ........... 1A-137
DTC P0625 / P0626: Generator Field Terminal Circuit Low / High . .......................... 1A-139
DTC P1501 / P1502: Electric Load Current Sensor Circuit Low / High . ............................ 1A-141 DTC P1510: ECM Back-Up Power Supply
Malfunction .................................................... 1A-143
DTC P1603: TCM Trouble Code Detected ..... 1A-144
DTC P1674: CAN Communication (Bus Off Error) ............................................................. 1A-145
DTC P1676: CAN Communication (Reception Error for TCM) ............................................... 1A-148
DTC P1678: CAN Communication (Reception Error for BCM) ............................................... 1A-149
DTC P1685: CAN Communication (Reception Error for ABS/ESP ® Control Module) ........... 1A-150
DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance ......................... 1A-152
DTC P2102: Throttle Actuator Control Motor Circuit Low .................................................... 1A-154
DTC P2103: Throttle Actuator Control Motor Circuit High.................................................... 1A-155
DTC P2111 / P2112: Throttle Actuator Control System - Stuck Open / Closed ...................... 1A-156
DTC P2119: Throttle Actu ator Control Throttle
Body Range / Performance ........................... 1A-157
DTC P2122: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit Low Input............. 1A-159
DTC P2123: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit High Input ............ 1A-161
DTC P2127: Throttle Pedal Position Sensor / Switch “E” (Sub) Circuit Low Input ................ 1A-164
DTC P2128: Throttle / Pedal Position Sensor
/ Switc
h “E” (Sub) Circuit High Input ............. 1A-166
DTC P2135: Throttle / Pedal Position Sensor / Switch “A”/“B” (Main / Sub) Voltage
Correlation..................................................... 1A-168
DTC P2138: Throttle / Pedal Position Sensor / Switch “D”/“E” (Main / Sub) Voltage
Correlation..................................................... 1A-171
DTC P2227 / P2228 / P2229: Barometric Pressure Circuit Malfunction ......................... 1A-173
Inspection of ECM and Its Circuits .................. 1A-175
ECM Power and Ground Circuit Check........... 1A-194
Fuel Injector Circuit Check .............................. 1A-198
Fuel Pump and Its Circuit Check..................... 1A-200
Fuel Pressure Check....................................... 1A-203
A/C System Circuits Check ............................. 1A-205
Electric Load Signal Circuit Check .................. 1A-209
Radiator Cooling Fan Low Speed Control System Check ............................................... 1A-211
Radiator Cooling Fan High Speed Control System Check ............................................... 1A-213
Repair Instructions ......... .................................1A-216
Idle Speed and IAC Throttle Valve Opening Inspection ...................................................... 1A-216
Special Tools and Equipmen t .........................1A-217
Special Tool .................................................... 1A-217
Aux. Emission Control Devices ............. 1B-1
Diagnostic Information and Procedures ............1B-1
EGR System Inspection ...................................... 1B-1
Repair Instructions ............ ..................................1B-1
EVAP Canister Purge Inspec tion ........................ 1B-1

Downloaded from www.Manualslib.com manuals search engine 1A-2 Engine General Information and Diagnosis:
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• ECM replacement: When substituting a known-good ECM, check for the
following conditions. Neglec ting this check may cause
damage to a known-good ECM.
– Resistance value of all relays, actuators is as specified respectively.
– MAP sensor, A/C refrigerant pressure sensor and TP sensor are in good condition and none of power
circuits of these sensors is shorted to ground.
• Communication of ECM, BCM, ABS/ESP ® control
module, combination meter, keyless start control
module, steering angle sensor (ESP ® model) and
TCM (A/T model), is esta blished by CAN (Controller
Area Network). (For more detail of CAN
communication for ECM, refer to “CAN
Communication System Description”). Therefore,
handle CAN communication line with care referring to
“Precaution for CAN Communication System in
Section 00”.
• Immobilizer transponder code registration after
replacing ECM
When ECM is replaced with new one or with another
one, make sure to register immobilizer transponder
code to ECM correctly according to “Procedure after
ECM Replacement in Section 10C”.Precautions of ECM Circuit InspectionS7RS0B1100003
• ECM connectors are waterproofed. Each terminal of the ECM connectors is sealed up with the grommet.
Therefore, when measuring ci rcuit voltage, resistance
and/or pulse signal at ECM connector, do not insert
the tester’s probe into th e sealed terminal at the
harness side. When measuring circuit voltage,
resistance and/or pulse signal at ECM connector,
connect the special tool to the ECM connectors. And,
insert the tester’s probe into the special tool’s
connectors at the harness side, and then measure
voltage, resistance and/or pulse signal. Or, ECM and
its circuits may be damaged by water.
• Wire colors of the special tool’s connectors are different from the ones of the ECM connectors.
However, the circuit arrangement of the special tool’s
connectors is same as the one of the ECM
connectors. Therefore, measure circuit voltage and
resistance by identifying the terminal location subject
to the measurement.
Precautions of Electric Throttle Body System
Calibration
S7RS0B1100004
After performing one of works described below, it is
necessary to re-register the completely closed throttle
valve reference position stored in memory of ECM. (For
detailed information, refer to “Description of Electric
Throttle Body System Calibration”.) For the procedure to
register such data in ECM, refer to “Electric Throttle
Body System Calibration in Section 1C”.
• To shut off backup power of ECM for such purposes of battery replacement or “DOME” fuse removal
• To erase DTCs P0122, P01 23, P0222, P0223, P2101,
P2102, P2103, P2111, P2112, P2113, P2119, P2123,
P2127, P2128, P2135 and/or P2138
• To replace ECM
• To replace throttle body and/or accelerator pedal position (APP) sensor assembly
General Description
Statement on Cleanliness and CareS7RS0B1101001
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousands of an
millimeter (ten thous ands of an inch).
Accordingly, when any internal engine parts are
serviced, care and cleanliness are important.
It should be understood that proper cleaning and
protection of machined surfaces and friction areas is part
of the repair procedure. This is considered standard
shop practice even if not specifically stated.
• A liberal coating of engine oil should be applied to friction areas during assembly to protect and lubricate
the surfaces on initial operation. • Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
• Battery cables should be disconnected before any major work is performed on the engine.
Failure to disconnect cables may result in damage to
wire harness or other electrical parts.

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Fail-Safe TableS7RS0B1104006
When any of the following DTCs is detected, ECM enters fail-safe mode as long as malfunction continues to exist but
that mode is canceled when ECM de tects normal condition after that.
)
*P2123 Throttle/pedal position sensor/
switch “D” (main) circuit high
input Output voltage of APP sensor (main) is higher than
specification.
1 driving
cycle
) *P2127 Throttle/pedal position sensor/
switch “E” (sub) circuit low
input Output voltage of APP sens
or (sub) is lower than
specification. 1 driving
cycle
) *P2128 Throttle/pedal position sensor/
switch “E” (sub) circuit high
input Output voltage of APP sensor (sub) is higher than
specification.
1 driving
cycle
) *P2135 Throttle/pedal position sensor/
switch “A”/“B” (main / sub)
voltage correlation Difference between the opening angle based on TP
sensor (main) and the opening angle based on TP sensor
(sub) is more than specification.
1 driving
cycle
) *P2138 Throttle/pedal position sensor/
switch “D”/“E” (main / sub)
voltage correlation Difference between the opening angle based on APP
sensor (main) and the opening angle based on APP
sensor (sub) is more
than specification. 1 driving
cycle
)
U *P2227 Barometric pressure circuit
range/performance Difference of barometric pressure value and intake
manifold pressure value is
more than specification at
engine start. 2 driving
cycles
) *P2228 Barometric pressure circuit low Barometric pressure sens
or voltage is less than
specification. 1 driving
cycle
) *P2229 Barometric pressure circuit
high Barometric pressure sensor voltage is more than
specification. 1 driving
cycle
) P1614 Transponder response error
Refer to “Diagnostic Trouble Code (DTC) Table in Section
10C”. —

) P1615 ID code does not registered
(vehicle equipped with keyless
start system only)
) P1616 Different registration ID codes
(vehicle equipped with keyless
start system only)
) P1618 CAN communication error
(reception error for keyless
start control module) (vehicle
equipped with keyless start
system only)
) P1621 Immobilizer communication
line error
) P1622
EEPROM error
) P1623 Unregistered transponder
) P1625 Immobilizer antenna error
) P1636 Immobilizer information
registration failure
) P1638 Immobilizer information
mismatched
DTC No. Detecting item
Detecting condition
(DTC will set when detecting:) MIL
DTC No.
Detected item Fail-safe operation
) P0031 HO2S heater control circuit low (Sensor-1)
ECM stops air/fuel ratio control.
) P0032 HO2S heater control circuit high (Sensor-1)
) P0102 Mass or volume air flow circuit low input • ECM controls injector drive time (fuel injection
volume) according to throttle valve opening
(closed throttle position or not).
• ECM stops EGR control.
)
P0103 Mass or volume air flow circuit high input
) P0112 Intake air temperature sensor 1 circuit low ECM controls actuators assuming that intake air
temperature is 20 °C (68 ° F).
) P0113 Intake air temperature sensor 1 circuit high

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Scan Tool DataS7RS0B1104007
As the data values are standard values estimated on the basis of values obtained from the normally operating vehicles
by using a scan tool, use them as re ference values. Even when the vehicle is in good condition, there may be cases
where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not
be made by checking with these data alone.
Also, conditions that can be checked by the scan tool are those detected by ECM and output from ECM as commands
and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool.
Be sure to use the timing light to check the ignition timing.
NOTE
• There are two types of OBD system depending on the vehicle specification.
For details, refer to “Precaution on On-Board Diagnostic (OBD) System”.
• With the generic scan tool, only star (*) marked data in the following table can be read.
• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the neutral position and A/T gear to the “Park” position and pull the parking brake fully. Also, if nothing
or “no load” is indicated, turn O FF A/C (if equipped with A/C), all electric loads, P/S and all the other
necessary switches.

) P2122 Throttle/pedal position sensor/switch/“D” (main)
circuit low input
• ECM turns off throttle actuator control relay and throttle valve is fixed at the specified opening from
its completely closed position (default opening).
For details, refer to “Description of Electric
Throttle Body System”.
• ECM controls fuel cut at specified engine speed.
• ECM stops air/fuel ratio control.
)
P2123 Throttle/pedal position sensor/switch/“D” (main)
circuit high input
) P2127 Throttle/pedal position sensor/switch/“E” (sub)
circuit low input
) P2128 Throttle/pedal position sensor/switch/“E” (sub)
circuit high input
) P2135 Throttle/pedal position sensor/switch/“A”/“B”
(main) / (sub) voltage correction
) P2138 Throttle pedal position sensor/switch “D”/“E”
(main) / (sub) voltage correlation
) P2227 Barometric pressure sensor performance problem ECM controls actuators assuming that barometric
pressure is 101.33 kPa (762 mmHg).
DTC No. Detected item Fail-safe operation
Scan tool data
Vehicle condition Normal condition /
reference values
* ) COOLANT TEMP At specified idle speed after warming up 80 – 100 °C, 176 – 212 °F
* ) INTAKE AIR TEMP. At specifie d idle speed after warming up –5
°C (23 °F) + environmental
temp. to 40 °C (104 °F) +
environmental temp.
* ) ENGINE SPEED It idling with no load after warming upDesired idle speed ± 50 rpm
) INJ PULSE WIDTH At specified idle speed with no load after warming up
2.0 – 4.0 msec.
At 2500 r/min. with no load after warming up 2.0 – 3.6 msec.
) DESIRED IDLE It idling with radiator cooling fan stopped and all electrical
parts turned OFF after warming up, M/T at neutral 700 rpm
* ) SHORT FT B1 At specified idle speed after warming up –20 – +20%
* ) LONG FT B1 At specified idle speed after warming up –20 – +20%
) TOTAL FUEL TRIM
B1 At specified idle speed after warming up
–35 – +35%
* ) MAF At specified idle speed wit
h no load after warming up 1.0 – 4.0 g/s 0.14 – 0.52 lb/
min.
At 2500 r/min. with no load after warming up 4.0 – 12.0 g/s 0.53 – 1.58 lb/
min.
* ) CALC LOAD At specified idle speed with no load after warming up
18 – 28%
At 2500 r/min. with no load after warming up 13 – 23%
* )
THROTTLE
POSITION Ignition switch ON /
warmed up engine
stoppedAccelerator pedal released
0 – 5%
Accelerator pedal depressed
fully 90 – 100%

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DTC P2138: Throttle / Pedal Position Sensor / Switch “D”/“E” (Main / Sub) Voltage CorrelationS7RS0B1104077
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC.
E23 C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 48 32 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BRN
GRN
BLU
RED
YEL
WHT
E23-35
E23-37
E23-52
E23-34
E23-36
E23-51
E23-50 5 V
5 V
1
1-1 3 2
1-2
I4RS0B110047-01
1. APP sensor
1-2. APP sensor (sub) 3. Ground of APP sensor for shield wire
1-1. APP sensor (main) 2. ECM
DTC detecting condition Trouble area
Difference between the opening angle based on APP
sensor (main) and the op ening angle based on APP
sensor (sub) is more than sp ecification for specified time
continuously.
(1 driving detection logic) • APP sensor (main) and (sub) circuit
• APP sensor assembly
•ECM