1C-1 Engine Electrical Devices:
Engine Electrical Devices
Repair Instructions
Engine Control Module (ECM) Removal and
Installation
S5JB0A1306004
CAUTION
!
As ECM consists of precision parts, be
careful not to expose it to excessive shock.
Removal
1) Disconnect negative cable at battery.
2) Remove ECM cover.
3) Disconnect connectors from ECM as follows.
a) Push lock (1) to release locking of lock lever (2).
b) Turn lock lever to arrow direction until it stops.
4) Remove ECM (1) from its bracket by removing its
mounting bolts (2).
Installation
Reverse removal procedure noting the following:
• Connect connectors to ECM as follows.
a. Make sure that lock lever of ECM connector is
unlock position.
b. Insert ECM connectors to ECM until it stops with
unlocked lock lever.
c. Lock ECM connectors securely by pulling its lock
lever up.
Manifold Absolute Pressure (MAP) Sensor
Inspection
S5JB0A1306005
1) Disconnect connector from MAP sensor.
2) Remove MAP sensor from intake manifold.
3) Arrange 3 new 1.5 V batteries (2) in series (check
that total voltage is 4.5 – 5.0 V) and connect its
positive terminal to “Vin” terminal of sensor and
negative terminal to “Ground” terminal. Then check
voltage between “Vout” and “Ground”. Also, check if
voltage reduces when vacuum is applied up to 400
mmHg by using vacuum pump (3).
If check result is not satisfactory, replace MAP
sensor (1).
Output voltage (When input voltage is 4.5 – 5.5 V,
ambient temp. 20 – 30
°
C, 68 – 86
°
F)
1
2
I4RS0A130003-01
1
2
2
2
I5JB0A130012-03
I4RS0B130021-01
Altitude
(Reference)
Barometric pressure
Output
voltage
(ft)
(m)
(mmHg)
(kPa)
(V)
0 – 2000
0 – 610
760 – 707 100 – 94 3.3 – 4.3
2001 –
5000
611 –
1524
Under 707
over 634
94 – 85
3.0 – 4.1
5001 –
8000
1525 –
2438
Under 634
over 567
85 – 76
2.7 – 3.7
8001 –
10000
2439 –
3048
Under 567
over 526
76 – 70
2.5 – 3.3
I4RS0B130022-01
I4RS0A130004-01
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