gnd SUZUKI JIMNY 2005 3.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION 0A-21
Abbreviations May Be Used In This Manual
Abbreviations
AABC
ATDC
API
ATF
ALR
AC
A/T
A/C
ABDC
A/F
A-ELRAnti-lock Brake System
After Top Dead Center
American Petroleum Institute
Automatic Transmission Fluid
Automatic Locking Retractor
Alternating Current
Automatic Transmission
Air Conditioning
After Bottom Dead Center
Air Fuel Mixture Ratio
Automatic-Emergency
Locking RetractorEEBCM
ECM
ECT Sensor
EGR
EGRT Sensor
EFE Heater
ELR
EPS
EVAP
EVAP CanisterElectronic Brake Control Module,
ABS Control Module
Engine Control Module
Engine Coolant Temperature
Sensor (Water Temp. Sensor,
WTS)
Exhaust Gas Recirculation
EGR Temperature Sensor
(Recirculated Exhaust Gas Temp.
Sensor, REGTS)
Early Fuel Evaporation
Heater (Positive Temperature
Coefficient, PTC Heater)
Emergency Locking Retractor
Electronic Power Steering
Evaporative Emission
Evaporative Emission Canister
(Charcoal Canister) BB+
BTDC
BBDCBattery Positive Voltage
Before Top Dead Center
Before Bottom Dead Center
CCKT
CMP Sensor
CO
CPP Switch
CPU
CRSCircuit
Camshaft Position Sensor
(Crank Angle Sensor, CAS)
Carbon Monoxide
Clutch Pedal Position Switch
(Clutch Switch, Clutch Start
Switch)
Central Processing Unit
Child Restraint SystemF 4WD 4 Wheel Drive
GGEN
GNDGenerator
Ground
HHC
HO2SHydrocarbons
Heated Oxygen Sensor
DDC
DLC
DOHC
DOJ
DRL
DTCDirect Current
Data Link Connector
(Assembly Line Diag. Link, ALDL,
Serial Data Link, SDL)
Double Over Head Camshaft
Double Offset Joint
Daytime Running Light
Diagnostic Trouble Code
(Diagnostic Code)IIAC Valve
IAT Sensor
ICM
IG
ISC ActuatorIdle Air Control Valve (Idle Speed
Control Solenoid Valve, ISC
Solenoid Valve)
Intake Air Temperature Sensor
(Air temperature Sensor, ATS)
Immobilizer Control Module
Ignition
Idle Speed Control Actuator
(Motor)

Downloaded from www.Manualslib.com manuals search engine 6-80 ENGINE GENERAL INFORMATION AND DIAGNOSIS
INSPECTION
Step Action Yes No
1Was “Engine Diag. Flow Table” performed? Go to Step 2. Go to “Engine Diag.
Flow Table”.
2 Check CKP Sensor and connector for proper
installation.
Is CKP sensor installed properly and connector
connected securely?Go to Step 3. Correct.
3 Check Wire Harness and Connection.
1) Disconnect connector from CKP sensor.
2) Check for proper connection to CKP sensor at
each terminal.
3) If OK, turn ignition switch ON and check for
voltage at each terminal of sensor connector
disconnected. See Fig. 1.
Terminal “B+” : 10 – 14 V
Terminal “Vout” : 4 – 5 V
Terminal “GND” : 0 V
Is check result satisfactory?Go to Step 5. Go to Step 4.
4 Was terminal “Vout” voltage out of specification in
Step 3 check?“G/R” wire open, short or
poor connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.“Bl/B” or “B/R” wire
open, short or poor
connection.
5 Check Ground Circuit for Open.
1) Turn ignition switch OFF.
2) Check for continuity between “GND” terminal
of CKP sensor connector and engine ground.
Is continuity indicated?Go to Step 6.“B/R” wire open or
poor ground connec-
tion.
6 Check CKP Sensor for Operation.
1) Remove CKP sensor from sensor case.
2) Remove metal particles on end face of CKP
sensor, if any.
3) Connect each connector to ECM and CKP
sensor.
4) Turn ignition switch ON.
5) Check for voltage at terminal E19-23 of con-
nector connected to ECM by passing magnetic
substance (iron) (1) while keeping approxi-
mately 1 mm (0.03 in.) gap with respect to end
face of CKP sensor. See Fig. 2 and 3.
Does voltage vary from low (0 – 1 V) to high (4 – 5
V) or from high to low?Go to Step 7. Replace CKP sensor.
7 Check signal rotor for the following. See Fig. 4.
Damage
No foreign material attached
Is it in good condition?Intermittent trouble or
faulty ECM.
Check for intermittent
referring to “Intermittent
and Poor Connection” in
Section 0A.Clean rotor teeth or
replace CKP sensor.

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-83
INSPECTION
Step Action Yes No
1Was “Engine Diag. Flow Table” performed? Go to Step 2. Go to “Engine Diag.
Flow Table”.
2 Check CMP Sensor and connector for proper installa-
tion.
Is CMP sensor installed properly and connector con-
nected securely?Go to Step 3. Correct.
3 Check Wire Harness and Connection.
1) Disconnect connector from CMP sensor.
2) Check for proper connection to CMP sensor at
each terminal.
3) If OK, turn ignition switch ON and check for volt-
age at each terminal of sensor connector discon-
nected. See Fig. 1.
Terminal “B+” : 10 – 14 V
Terminal “Vout” : 4 – 5 V
Terminal “GND” : 0 V
Is check result satisfactory?Go to Step 5. Go to Step 4.
4 Was terminal “Vout” voltage out of specification in
Step 3 check?“W” wire open, short or
poor connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck.“Bl/B” or “B/R” wire
open, short or poor
connection.
5 Check Ground Circuit for Open.
1) Turn ignition switch OFF.
2) Check for continuity between “GND” terminal of
CMP sensor connector and engine ground.
Is continuity indicated?Go to Step 6.“B/R” wire open or
poor ground connec-
tion.
6 Check CMP Sensor for Operation.
1) Remove CMP sensor from sensor case.
2) Remove metal particles on end face of CMP sen-
sor, if any.
3) Connect each connector to ECM and CMP sensor.
4) Turn ignition switch ON.
5) Check for voltage at terminal E19-11 of connector
connected to ECM by passing magnetic sub-
stance (iron) (1) while keeping approximately 1
mm (0.03 in.) gap with respect to end face of CMP
sensor. See Fig. 2 and 3.
Does voltage vary from low (0 – 1 V) to high (4 – 5 V)
or from high to low?Go to Step 7. Replace CMP sen-
sor.
7 Check signal rotor for the following.
See Fig. 4.
Damage
No foreign material attached
Is it in good condition?Intermittent trouble or
faulty ECM.
Check for intermittent
referring to “Intermittent
and Poor Connection” in
Section 0A.Clean rotor teeth or
replace CMP sensor.

Downloaded from www.Manualslib.com manuals search engine ENGINE AND EMISSION CONTROL SYSTEM 6E-33
Tighten ECT sensor (1) to specified torque.
Tightening torque
ECT sensor (a) : 15 N·m (1.5 kg-m, 11.5 lb-ft)
Connect connector to ECT sensor (1) securely.
Refill coolant referring to “Cooling System Flush and Refill”
in Section 6B.
Heated oxygen sensor (Sensor-1 and sensor-2)
OXYGEN SENSOR HEATER INSPECTION
1) Disconnect sensor connector.
2) Using ohmmeter, measure resistance between terminals
“V
B” and “GND” of sensor connector.
If found faulty, replace oxygen sensor.
Resistance of oxygen sensor heater
HO2S-1 : 5.0 – 6.4
Ω
ΩΩ Ω at 20 °C, 68 °F
HO2S-2 : 11.7 – 14.3
Ω
ΩΩ Ω at 20 °C, 68 °F
3) Connect sensor connector securely.
REMOVAL
NOTE:
Temperature of sensor affects resistance value largely.
Make sure that sensor heater is at correct temperature.
1. Viewed from terminal side
WARNING:
To avoid danger of being burned, do not touch exhaust
system when system is hot. Oxygen sensor removal
should be performed when system is cool.