speed sensor SUZUKI JIMNY 2005 3.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine 5E-32 ANTILOCK BRAKE SYSTEM (ABS)
Front Wheel Speed Sensor
OUTPUT VOLTAGE INSPECTION
1) Turn ignition switch OFF.
2) Hoist vehicle a little.
3) Disconnect connector of wheel speed sensor.
4) Connect voltmeter between connector terminals.
5) While turning wheel at a speed of approximately 1 full rota-
tion to 1 1/3 rotation per second, check AC voltage of sensor.
Output AC voltage at 1 to 1 1/3 rotation per second
: 120 mV or more at 42 – 54 Hz
If measured voltage is not as specified, check sensor, rotor and
their installation conditions.
1. Front wheel speed sensor 3. Knuckle
2. Sensor ring
1. Wheel speed sensor coupler
2. Right wheel sensor terminals
3. Left wheel sensor terminals

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-33
Reference
When using oscilloscope for this check, check if peak-to-peak
voltage (1) meets specification and waveform is complete.
Peak-to-peak voltage at 1 to 1 1/3 rotation per second
: 340 mV or more at 42 – 54 Hz
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect front wheel speed sensor coupler (3).
3) Hoist vehicle and remove wheel.
4) Remove harness clamp bolts (2) and front wheel speed sen-
sor (1) from knuckle.
SENSOR INSPECTION
Check sensor for damage.
Check sensor for resistance.
If any malfunction is found, replace.
Resistance between terminals of sensor
: 1.2 – 1.6 k
Ω at 20 °C (68 °F)
Resistance between terminal and sensor body
: 1 M
Ω or more
CAUTION:
Do not pull wire harness when removing front wheel
speed sensor.
Do not cause damage to surface of front wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.
1. Right wheel sensor terminals
2. Left wheel sensor terminals

Downloaded from www.Manualslib.com manuals search engine 5E-34 ANTILOCK BRAKE SYSTEM (ABS)
SENSOR RING INSPECTION
Check ring teeth for being missing, damaged or deformed.
Turn drive shaft and check if ring rotation is free from eccen-
tricity and looseness.
Check that no foreign material is attached.
If any faulty is found, repair or replace.
INSTALLATION
1) Check that no foreign material is attached to sensor (1) and
ring.
2) Install it by reversing removal procedure.
Tightening torque
Front wheel speed sensor bolt and front wheel speed sen-
sor harness clamp bolts
(a) : 10 N·m (1.0 kg-m, 7.2 lb-ft)
3) Check that there is no clearance between sensor and
knuckle.
CAUTION:
Do not pull wire harness or twist more than necessary
when installing front wheel speed sensor.
2. Bolt

Downloaded from www.Manualslib.com manuals search engine 5E-36 ANTILOCK BRAKE SYSTEM (ABS)
Rear Wheel Speed Sensor
OUTPUT VOLTAGE INSPECTION
Check in the same procedure as that used of front wheel speed
sensor check.
Output AC voltage at 1 to 1 1/3 rotation per second
: 100 mV or more at 38 – 49 Hz
Reference
When using oscilloscope, peak-to-peak voltage at 1 to
1 1/3 rotation per second
: 280 mV or more at 38 – 49 Hz
REMOVAL
1) Disconnect negative cable from battery.
2) Hoist vehicle.
3) Disconnect rear wheel speed sensor coupler (1).
4) Detach ABS wheel sensor wire harness from suspension
frame.
1. Left rear wheel sensor 3. Sensor ring Tightening torque
2. Trailing arm 4. Clamp bolt
2. Rear wheel sensor

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-37
5) Remove rear wheel speed sensor (1) from rear axle housing.
SENSOR INSPECTION
Check sensor for damage.
Check sensor for resistance.
Resistance between terminals of sensor
: 1.4 – 1.8 k
Ω at 20 °C (68 °F)
Resistance between sensor terminal and sensor body
: 1 M
Ω or more
If any malcondition is found, replace.
SENSOR RING INSPECTION
Check ring teeth for being missing, damaged or deformed.
Turn wheel and check if ring rotation is free from eccentricity
and looseness.
Check that no foreign material is attached.
If any faulty is found, repair or replace.
INSTALLATION
1) Check that no foreign material is attached to sensor and ring.
2) Install it by reversing removal procedure.
Tightening torque
Rear wheel speed sensor bolt and rear wheel speed sen-
sor harness clamp bolts
(a) : 10 N·m (1.0 kg-m, 7.2 lb-ft)
3) Check that there is no clearance between sensor and rear
axle housing. CAUTION:
Do not pull wire harness when removing rear wheel
speed sensor (1).
Do not cause damage to surface of rear wheel speed
sensor and do not allow dust, etc. to enter its installa-
tion hole.
2. Rear wheel sensor ring
CAUTION:
Do not pull wire harness or twist more than necessary
when installing rear wheel speed sensor.
1. Sensor bolt
2. Clamp bolt

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Tightening Torque Specification
Special Tool
Fastening partTightening torque
Nm kg-m lb-ft
Brake pipe flare nuts 16 1.6 11.6
ABS hydraulic unit / control module assembly bracket bolts 11 1.1 8.0
ABS hydraulic unit / control module assembly bolts 9 0.9 6.5
Front wheel speed sensor bolt 10 1.0 7.2
Front wheel speed sensor harness clamp bolts 10 1.0 7.2
Rear wheel speed sensor bolt 10 1.0 7.2
Rear wheel speed sensor harness clamp bolts 10 1.0 7.2
G sensor bolts 23 2.3 17.0
09950-78220 09931-76011 09931-76030
Flare nut wrench (10 mm) Tech 1A kit (SUZUKI scan
tool) See NOTE “A” belowMass storage cartridge for
Tech 1A16/14 pin DLC cable for
Tech 1A
Tech 2 kit (SUZUKI scan
tool) See NOTE “B”
below.
NOTE:
“A” : This kit includes the following items and substitutes for the Tech 2 kit.
1. Storage case, 2. Operator’s manual, 3. Tech 1A, 4. DLC cable, 5. Test lead / probe,
6. Power source cable, 7. DLC cable adaptor, 8. Self-test adaptor
“B” : This kit includes the following items and substitutes for the Tech 1A kit.
1. Tech 2, 2. PCMCIA card, 3. DLC cable, 4. SAE 16/19 adapter, 5. Cigarette cable,
6. DLC loopback adapter, 7. Battery power cable, 8. RS232 cable, 9. RS232 adapter,
10. RS232 loopback connector, 11. Storage case, 12. Power supply

Downloaded from www.Manualslib.com manuals search engine 6-2 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Diagnostic trouble code (DTC) table ......... 6-16
Fail-safe table............................................ 6-19
Visual inspection ....................................... 6-20
Engine basic inspection ............................ 6-21
Engine diagnosis table .............................. 6-23
Scan Tool Data ............................................. 6-28
Scan tool data definitions .......................... 6-30
Inspection of ECM and Its Circuits ................ 6-33
Component Location ..................................... 6-42
Table A-1 Malfunction Indicator Lamp Circuit
Check - Lamp Does Not Come “ON” at Ignition
Switch ON (But Engine at Stop).................... 6-43
Table A-2 Malfunction Indicator Lamp Circuit
Check - Lamp Remains “ON” after Engine
Starts............................................................. 6-44
Table A-3 Malfunction Indicator Lamp Circuit
Check - Mil Flashes at Ignition Switch ON .... 6-45
Table A-4 Malfunction Indicator Lamp Circuit
Check - MIL Does Not Flash, Just Remains
ON or Just Remains OFF Even with Grounding
Diagnosis Switch Terminal............................ 6-45
Table A-5 ECM Power and Ground Circuit
Check - MIL Doesn’t Light at Ignition Switch
ON and Engine Doesn’t Start Though It Is
Cranked Up ................................................... 6-46
DTC P0105 (DTC No.11) Manifold Absolute
Pressure (MAP) Circuit Malfunction .............. 6-48
DTC P0110 (DTC No.18) Intake Air Temp.
(IAT) Circuit Malfunction ............................... 6-51
DTC P0115 (DTC No.19) Engine Coolant
Temperature (ECT) Circuit Malfunction ........ 6-53
DTC P0120 (DTC No.13) Throttle Position
Circuit Malfunction ........................................ 6-55
DTC P0121 Throttle Position Circuit Range /
Performance Problem ................................... 6-57
DTC P0130 (DTC No.14) Heated Oxygen
Sensor (HO2S) Circuit Malfunction
(Sensor-1) ..................................................... 6-59
DTC P0133 Heated Oxygen Sensor (HO2S)
Circuit Slow Response (Sensor-1) ................ 6-61
DTC P0135 (DTC No.14) Heated Oxygen
Sensor (HO2S) Heater Circuit Malfunction
(Sensor-1) ..................................................... 6-62
DTC P0136 Heated Oxygen Sensor (HO2S)
Circuit Malfunction (Sensor-2) ...................... 6-64
DTC P0141 Heated Oxygen Sensor (HO2S)
Heater Circuit Malfunction (Sensor-2)........... 6-66
DTC P0171 Fuel System Too Lean .............. 6-68
DTC P0172 Fuel System Too Rich ............... 6-68
DTC P0300 Random Misfire Detected
(Misfire Detected at 2 or More Cylinders) ..... 6-72DTC P0301 Cylinder 1 Misfire Detected ........ 6-72
DTC P0302 Cylinder 2 Misfire Detected ........ 6-72
DTC P0303 Cylinder 3 Misfire Detected ........ 6-72
DTC P0304 Cylinder 4 Misfire Detected ........ 6-72
DTC P0325 (DTC No.17) Knock Sensor Circuit
Malfunction .................................................... 6-77
DTC P0335 (DTC No.23) Crankshaft Position
(CKP) Sensor Circuit Malfunction .................. 6-79
DTC P0340 (DTC No.15) Camshaft Position
(CMP) Sensor Circuit Malfunction ................. 6-82
DTC P0400 Exhaust Gas Recirculation Flow
Malfunction .................................................... 6-85
DTC P0420 Catalyst System Efficiency below
Threshold ....................................................... 6-88
DTC P0443 Purge Control Valve Circuit
Malfunction .................................................... 6-91
DTC P0481 A/C Condenser Fan Control
Circuit Malfunction ......................................... 6-92
DTC P0500 (DTC No.16) Vehicle Speed
Sensor (VSS) Malfunction ............................. 6-94
DTC P0505 Idle Control System
Malfunction .................................................... 6-96
DTC P0601 Internal Control Module Memory
Check Sum Error (DTC No.71) ...................... 6-98
DTC P1450 Barometric Pressure Sensor
Low / High Input ............................................. 6-99
DTC P1451 Barometric Pressure Sensor
Performance Problem .................................... 6-99
DTC P1500 Engine Starter Signal Circuit
Malfunction .................................................. 6-101
DTC P1510 ECM Back-up Power Supply
Malfunction .................................................. 6-103
DTC P1570 (DTC No.21) ABS Signal Circuit
Malfunction .................................................. 6-104
DTC P1600 Serial Communication Problem
Between ECM and TCM .............................. 6-105
DTC P1717 A/T Drive Range (Park / Neutral
Position) Signal Circuit Malfunction ............. 6-107
Table B-1 Fuel Injector Circuit Check ..........6-109
Table B-2 Fuel Pump and Its Circuit
Check........................................................... 6-110
Table B-3 Fuel Pressure Check................... 6-112
Table B-4 Idle Air Control System Check ....6-114
Table B-5 A/C Signal Circuits Check
(Vehicle with A/C) ........................................ 6-117
Table B-6 Electric Load Signal Circuit
Check........................................................... 6-119
TAble B-7 A/C Condenser Fan Control
System Check.............................................. 6-121
Special Tool ................................................... 6-123

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-17
P0335
(No.23)Crankshaft position sensor
circuit malfunctionNo signal for 2 sec. During engine crank-
ing1 driving
cycle1 driving
cycle
P0340
(No.15)Camshaft position sensor
circuit malfunctionNo signal during engine running1 driving
cycle1 driving
cycle
P0400Exhaust gas recirculation
flow malfunction detectedExcessive or insufficient EGR flow2 driving
cyclesNot
applicable
P0420Catalyst system efficiency
below thresholdOutput waveforms of HO2S-1 and HO2S-2
are similar.
(Time from output voltage change of
HO2S-1 to that of HO2S-2 is shorter than
specification.)2 driving
cyclesNot
applicable
P0443Purge control valve circuit
malfunctionPurge control valve circuit is open or
shorted to ground2 driving
cyclesNot
applicable
P0481A/C condenser fan control
circuit malfunctionA/C condenser fan relay terminal voltage is
low when fan command is not outputted2 driving
cyclesNot
applicable
P0500
(No.16)Vehicle speed sensor mal-
functionNo signal while running in “D” range or
during fuel cut at decelerating2 driving
cycles1 driving
cycle
P0505 Idle control system malfunc-
tionNo closed signal to IAC valve is detected2 driving
cyclesNot
applicable
P0601
(No.71)Internal control module
memory check sum errorData write error (or check sum error) when
written into ECM2 driving
cyclesNot
applicable
P1450 Barometric pressure sen-
sor circuit malfunctionBarometric pressure is lower or higher
than specification. (or sensor malfunction)1 driving
cycleNot
applicable
P1451Barometric pressure sen-
sor performance problemDifference between manifold absolute
pressure (MAP sensor value) and baro-
metric pressure (barometric pressure sen-
sor value) is larger than specification
during cranking.2 driving
cyclesNot
applicable
P1500Starter signal circuit mal-
functionStarter signal is not inputted from engine
cranking till its start and after or it is always
inputted2 driving
cyclesNot
applicable
P1510ECM backup power source
malfunctionNo backup power after starting engine1 driving
cycleNot
applicable
P1600Serial communication prob-
lem between ECM and
TCMNo signal or check sum error while engine
running1 driving
cycleNot
applicable
P1717AT D-range signal circuit
malfunctionNo “D” range (park / neutral position sig-
nal) is inputted while vehicle running2 driving
cyclesNot
applicable
P1570ABS signal circuit malfunc-
tionABS signal ON (low voltage) when engine
startNot
applicable1 driving
cycle DTC
NO.DETECTING ITEM DETECTING CONDITION
(DTC will set when detecting :)MIL
(vehicle
with immo-
bilizer indi-
cator lamp)MIL
(vehicle
without
immobi-
lizer indica-
tor lamp)

Downloaded from www.Manualslib.com manuals search engine 6-18 ENGINE GENERAL INFORMATION AND DIAGNOSIS
DTC NO. DETECTING ITEM DETECTING CONDITION
(DTC will set when detecting :)MIL
P0702 Transmission Control System Electrical
Refer to Section 7B.
These DTCs can not be read on vehicle without
Immobilizer indicator lamp (by ECM application of
SUZUKI scan tool). P0705 Temperature Sensor Circuit Malfunction
P0710Transmission Temperature Sensor Circuit Mal-
function
P0715Input / Turbine Speed Sensor Circuit Malfunc-
tion
P0720Output Shaft Speed Sensor Circuit Malfunc-
tion
P0725 Engine Speed Input Circuit Malfunction
P0730 Incorrect Gear Ratio
P0743 Torque Converter Clutch Circuit Electrical
P0753 Shift Solenoid A Electrical
P0758 Shift Solenoid B Electrical
P0763 Shift Solenoid C Electrical
P0768 Shift Solenoid D Electrical
P1700 Throttle Position Signal Input Malfunction
P1702Internal Control Module Memory Check Some
Error
P1709Engine Coolant Temperature Signal Input
Malfunction
P1887 Transfer Signal
P1620
(No.84)ECU code not registered
Refer to Section 8G. P1621
(No.83)No ECU code transmitted from Immobilizer
Control Module
P1622
(No.82)Faulty in ECM
P1623
(No.81)ECU code not matched
NOTE:
For ( ) marked No. in DTC column, it is used for vehicle without Immobilizer indicator lamp.
DTC No.12 appears when none of the other codes is identified (vehicle without Immobilizer indica-
tor lamp).

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-19
Fail-safe table
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 detects normal condition after that.
DTC NO. DETECTED ITEM FAIL-SAFE OPERATION (SYMPTOM)
P0105
(No.11)Manifold absolute pressure sensor circuit
malfunctionECM uses value determined by throttle opening and
engine speed.
P0110
(No.18)Intake air temp. sensor circuit malfunctionECM controls actuators assuming that intake air tem-
perature is 20 °C (68 °F).
P0115
(No.19)Engine coolant temp. sensor circuit mal-
functionECM controls actuators assuming that engine coolant
temperature is 80 °C (176 °F).
P0120
(No.13)Throttle position sensor circuit malfunc-
tionECM controls actuators assuming that throttle opening
is 20°. (High idle speed)
P0335
(No.23)Crankshaft position sensor circuit mal-
functionECM controls injection system sequential injection to
synchronous injection. (Cranking for a few seconds to
start engine)
P0340
(No.15)Camshaft position sensor circuit malfunc-
tionECM controls injection system sequential injection to
synchronous injection. (Cranking for a few seconds to
start engine)
P0500
(No.16)Vehicle speed sensor malfunction ECM stops idle air control.
P1450Barometric pressure sensor low / high
inputECM controls actuators assuming that barometric
pressure is 100 kPa (760 mmHg).
P1570
(No.21)ABS signal circuit malfunctionECM controls actuators assuming that ABS signal is
OFF.