Engine Electrical Devices; Repair Instructions; Engine Control Module (Ecm) Removal And Installation; Manifold Absolute Pressure (Map) Sensor Inspection - Suzuki Grand Vitara Service Manual

1C-1 Engine Electrical Devices:

Engine Electrical Devices

Engine Control Module (ECM) Removal and
Installation
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.
1
4) Remove ECM (1) from its bracket by removing its
mounting bolts (2).
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.

Repair Instructions

S5JB0A1306004
2
I4RS0A130003-01
2
1
2
I5JB0A130012-03
I4RS0B130021-01
www.CarGarage.ir
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
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)
Altitude
(Reference)
(ft) (m)
0 – 2000 0 – 610
2001 – 611 –
5000 1524
5001 – 1525 –
8000 2438
8001 – 2439 –
10000 3048
www.CarGarage.ir
I4RS0B130022-01
I4RS0A130004-01
S5JB0A1306005
Barometric pressure
voltage
(mmHg) (kPa)
760 – 707 100 – 94 3.3 – 4.3
Under 707
94 – 85 3.0 – 4.1
over 634
Under 634
85 – 76 2.7 – 3.7
over 567
Under 567
76 – 70 2.5 – 3.3
over 526
Output
(V)