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Downloaded from www.Manualslib.com manuals search engine 5E-2 ANTILOCK BRAKE SYSTEM (ABS)
General Description
The ABS (Antilock Brake System) is a system to prevent each wheel to lock during hard braking or braking on a
slippery road by controlling the fluid pressure from master cylinder to each brake (either brake caliper or wheel
cylinder).
The ABS of this vehicle monitors all four wheels (four sensors) and controls all four wheels when the system is
active.
The component parts of this ABS includes following parts in addition to those of the conventional brake system.
Wheel speed sensor senses revolution speed of each wheel and sends outputs to ABS control module.
In this ABS, ABS hydraulic unit (actuator assembly), ABS control module, pump motor transistor and fail-
safe transistor are combined as one component.
ABS control module sends operation signal to ABS hydraulic unit to control fluid pressure applied to each
wheel cylinder based on signal from each wheel speed sensor so as to prevent wheel from locking.
ABS hydraulic unit operates according to signal from ABS control module and controls fluid pressure applied
to wheel cylinder of each of 4 wheels.
Fail-safe transistor which supplies power to solenoid valve in ABS hydraulic unit.
Pump motor transistor supplies power to pump motor in ABS hydraulic unit.
“ABS” warning lamp lights to inform abnormality when system fails to operate properly.
G sensor which detects body deceleration speed.
1. Front disc brake 5. Brake master cylinder / booster
2. Proportioning valve [A] : For LH steering vehicle
3. Rear drum brake [B] : For RH steering vehicle
4. ABS hydraulic unit / control module assembly
Page 321 of 687
Downloaded from www.Manualslib.com manuals search engine 5E-4 ANTILOCK BRAKE SYSTEM (ABS)
ABS Component Parts Location
1. Wheel speed sensor (Right front) 6. ABS hydraulic unit / control module assembly 11. Proportioning valve
2. Stop lamp switch 7. Monitor connector [A] : For LH steering vehicle
3.“ABS” warning lamp 8. Wheel speed sensor (Left front) [B] : For RH steering vehicle
4. Wheel speed sensor (Right rear) 9. Wheel speed sensor ring
5. Wheel speed sensor (Left rear) 10. G sensor
Page 386 of 687

Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-29
∆✱
✱✱ ✱O2S B1 S2 (HEATED OXY-
GEN SENSOR-2)When engine is running at 2000 r/min. for
3 min or longer after warming up.0.01 – 0.95 V
∆✱
✱✱ ✱PSP SW No load to power steering. OFF
DESIRED IDLE
(DESIRED IDLE SPEED)At idling with no load after warming up, M/T
at neutral, A/T at “P” rangeM/T 700 r/min
A/T 750 r/min
TP SENSOR VOLT
(THROTTLE POSITION
SENSOR OUTPUT VOLT-
AGE)Ignition switch
ON / engine
stoppedThrottle valve fully closed More than 0.2 V
Throttle valve fully open Less than 4.8 V
INJ PULSE WIDTH (FUEL
INJECTION PULSE
WIDTH)At specified idle speed with no load after
warming up2.0 – 3.6 msec.
At 2500 r/min with no load after warming up 2.0 – 3.6 msec.
IAC FLOW DUTY (IDLE
AIR CONTROL FLOW
DUTY)At idling with no load after warming up 5 – 25 %
TOTAL FT B1 At specified idle speed after warming up– 35 – +35 %
BATTERY VOLTAGE Ignition switch ON / engine stop 12 – 15 V
CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)–0 – 100 %
CLOSED THROT POS
(CLOSED THROTTLE
POSITION)Throttle valve at idle position ON
Throttle valve opens larger than idle posi-
tionOFF
FUEL CUTWhen engine is at fuel cut condition ON
Other than fuel cut condition OFF
A/C CONDENSER FANIgnition switch
ONA/C not operating OFF
A/C operating ON
ELECTRIC LOADIgnition switch ON / Headlight, small light,
heater fan and rear window defogger all
turned OFFOFF
Ignition switch ON / Headlight, small light,
heater fan or rear window defogger turned
ONON
A/C SWITCHEngine running after warming up, A/C not
operatingOFF
Engine running after warming up, A/C oper-
atingON
PNP SIGNAL (PARK / NEU-
TRAL POSITION SIGNAL)
A/T onlyIgnition switch
ONSelector lever in “P” or “N”
positionP/N Range
Selector lever in “R”, “D”,
“2” or “L” positionD Range
EGR VALVE At specified idle speed after warming up 0 %
∆FUEL TANK LEVEL–0 – 100 %
BAROMETRIC PRESS–Display the barometric pres-
sure
FUEL PUMPWithin 3 seconds after ignition switch ON or
engine runningON
Engine stop at ignition switch ON. OFF SCAN TOOL DATA CONDITION REFERENCE VALUES
Page 389 of 687
Downloaded from www.Manualslib.com manuals search engine 6-32 ENGINE GENERAL INFORMATION AND DIAGNOSIS
FUEL TANK LEVEL (%)
This parameter indicates approximate fuel level in the fuel tank. As the detectable range of the fuel level sensor
is set as 0 to 100%, however, with some models whose fuel tank capacity is smaller, the indicated fuel level may
be only 70% even when the fuel tank is full.
PNP SIGNAL (PARK / NEUTRAL POSITION SIGNAL, P/N RANGE or D RANGE)
It is detected by signal from TCM.
D range : A/T is in “R”, “D”, “2” or “L” range.
P/N range : A/T is in “P” or “N” range or the above signal is not inputted from TCM.
EGR VALVE (%)
This parameter indicates opening rate of EGR valve which controls the amount of EGR flow.
PSP SW
The Power Steering Pressure switch parameter displays ON when steering wheel is turned all the way to the
right or left.
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Downloaded from www.Manualslib.com manuals search engine 6-34 ENGINE GENERAL INFORMATION AND DIAGNOSIS
ECM TERMINAL VOLTAGE VALUES TABLE
For TYPE A (See NOTE)
NOTE:
Type A is other than follows.
Type B is left hand steering vehicle equipped with fasten seat belt light and EGR valve or right hand
steering vehicle equipped with fasten seat belt light and immobilizer control system.
TERMINAL
NO.CIRCUIT NORMAL
VOLTAGECONDITION
E191Ground––
2Ground––
3Ground––
4 EVAP canister purge valve 10 – 14 V Ignition switch ON
5Power steering pressure switch
(if equipped)0 – 1.3 VWhile engine running at idle speed, turn
steering wheel to right or left as far as it
stops
10 – 14 V Ignition switch ON
6 Idle air control valve 0 – 13 VAt specified idle speed after engine
warmed up
7 Heater of HO2S-1 10 – 14 V Ignition switch ON
8 Fuel injector NO.4 10 – 14 V Ignition switch ON
9 Fuel injector NO.1 10 – 14 V Ignition switch ON
10 Sensor ground––
11 Camshaft position sensor0 – 0.8 V and
4 – 6 VIgnition switch ON
12–– –
13Heater oxygen sensor-1 Refer to DTC P0130 diag. flow table
CO adjusting resistor (w/o HO2S) 0 – 5 V Ignition switch ON position
14
Engine coolant temp. sensor 0.55 - 0.95 VIgnition switch ON
Engine coolant temp. : 80 °C (176 °F)
15
Intake air temp. sensor 2.0 – 2.7 VIgnition switch ON
Intake air temp. : 20 °C (68 °F)
16 Throttle opening signal0.2 – 1.0 VIgnition switch ON position and throttle
valve at idle position
2.8 – 4.8 VIgnition switch ON position and throttle
valve fully open
17EGR valve (stepper motor coil 3, if
equipped)10 – 14 VIgnition switch ON position leaving engine
OFF
18EGR valve (stepper motor coil 1, if
equipped)10 – 14 VIgnition switch ON position leaving engine
OFF
19 Ignition coil #2––
20 Ignition coil #1––
21 Fuel injector NO.2 10 – 14 V Ignition switch ON
22 Power source for sensors 4.75 – 5.25 V Ignition switch ON
23 Crankshaft position sensor0 – 0.8 or
4 – 5 VIgnition switch ON position
24–– –
25 Knock sensor About 2.5 VAt specified idle speed after engine
warmed up
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Downloaded from www.Manualslib.com manuals search engine ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-35
For TYPE B (See NOTE)
E1926 Manifold absolute pressure sensor 3.3 – 4.0 VIgnition switch ON
Barometric pressure : 100 kPa
(760 mmHg)
27 A/C evaporator temp. sensor 2.0 – 2.3 VIgnition switch ON A/C evaporation temp.
sensor at 25 °C (77 °F)
28EGR valve (stepper motor coil 4, if
equipped)10 – 14 VIgnition switch ON position leaving engine
OFF
29EGR valve (stepper motor coil 2, if
equipped)10 – 14 VIgnition switch ON position leaving engine
OFF
30–– –
31 Fuel injector NO.3 10 – 14 V Ignition switch ON TERMINAL
NO.CIRCUIT NORMAL
VOLTAGECONDITION
NOTE:
See NOTE in “ECM TERMINAL VOLTAGE VALUES TABLE” for applicable model.
TERMINAL
NO.CIRCUIT NORMAL
VOLTAGECONDITION
E191 Ground––
2 Ground––
3 Ground––
4 EVAP canister purge valve 10 – 14 V Ignition switch ON
5Power steering pressure switch
(if equipped)0 – 1.3 VWhile engine running at idle speed, turn
steering wheel to right or left as far as it
stops
10 – 14 V Ignition switch ON
6 Idle air control valve 0 – 13 VAt specified idle speed after engine
warmed up
7 Heater of HO2S-1 10 – 14 V Ignition switch ON
8 Fuel injector NO.4 10 – 14 V Ignition switch ON
9 Fuel injector NO.1 10 – 14 V Ignition switch ON
10 Sensor ground––
11 Camshaft position sensor0 – 0.8 V and
4 – 6 VIgnition switch ON
12–– –
13Heater oxygen sensor-1 Refer to DTC P0130 diag. flow table
CO adjusting resistor (w/o HO2S) 0 – 5 V Ignition switch ON position
14 Engine coolant temp. sensor 0.55 - 0.95 VIgnition switch ON
Engine coolant temp. : 80 °C (176 °F)
15 Intake air temp. sensor 2.0 – 2.7 VIgnition switch ON
Intake air temp. : 20 °C (68 °F)
16 Throttle opening signal0.2 – 1.0 VIgnition switch ON position and throttle
valve at idle position
2.8 – 4.8 VIgnition switch ON position and throttle
valve fully open
17EGR valve (stepper motor coil 3, if
equipped)10 – 14 VIgnition switch ON position leaving engine
OFF
Page 399 of 687
Downloaded from www.Manualslib.com manuals search engine 6-42 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Component Location
NOTE:
The figure shows left-hand steering vehicle.
For right-hand steering vehicle, parts with (*) are installed at the other side.
1. IAT sensor a : Immobilizer indicator lamp (if equipped) A : ECM
2. TP sensor b : A/C condenser fan motor relay (if equipped) B : A/T control module
3. Monitor connector c : Main relay C : EVAP canister
4. CO adjusting resistor (if equipped) d : Fuel pump relay D : DLC
5. CKP sensor e : IAC valve E : ABS control module (if equipped)
6. MAP sensor f : EVAP canister purge valve
7. CMP sensor g : EGR valve (if equipped)
8. Transmission range switch h : Fuel injector
9. VSS i : Ignition coil assemblies
10. HO2S-1 (if equipped) j : MIL
11. HO2S-2 (if equipped)
12. ECT sensor
13. Knock sensor
Page 485 of 687
Downloaded from www.Manualslib.com manuals search engine 6A1-4 ENGINE MECHANICAL (M13 ENGINE)
Diagnosis
Diagnosis Table
Refer to “Engine Diagnosis Table” in Section 6.
Compression Check
Check compression pressure on all 4 cylinders as follows:
1) Warm up engine.
2) Stop engine after warming up.
3) Disconnect accelerator cable (1) from clamp (2) (For left
hand steering vehicle only).
4) Remove cylinder head upper cover (3).
5) Disconnect ignition coil couplers (1).
6) Remove ignition coil assemblies (2) with high-tension cord
(3).
7) Remove all spark plugs.
8) Disconnect fuel injector wires (4) at the coupler.
9) Install special tools (Compression gauge) into spark plug
hole.
Special tool
(A) : 09915-64510-001
(B) : 09915-64510-002
(C) : 09915-64530
(D) : 09915-67010 NOTE:
After warming up engine, place transmission gear shift
lever in “Neutral” (shift selector lever to “P” range for A/T
model), and set parking brake and block drive wheels.