Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 117

1C-28 Engine Electrical Devices: For Diesel Engine Model

2) For accelerator pedal position (APP) sensor (sub),

arrange 3 new 1.5 V batteries (1) in series (check
that total voltage is 4.7 – 5.0 V) and connect its
positive terminal to “Vin 2” terminal (2) and negative
terminal to “Ground 2” terminal (3) of sensor. Then
using voltmeter connect positive terminal to “Volt 2”
terminal (4) of sensor and negative terminal to
battery.

3) Measure output voltage variation while accelerator

pedal is no depressed and fully depressed as
following specification.

If sensor voltage is out of specified value or does not
vary linearly as the following graph, replace accelerator
pedal position assembly.

Accelerator pedal position (APP) sensor output
voltage
Accelerator pedal position (APP) sensor (main)
output voltage [A]: 0.82 – 3.50 V, varying according
to depressed extent of accelerator pedal
Accelerator pedal position (APP) sensor (Sub)
output voltage [B]: 0.44 – 1.74 V, varying according
to depressed extent of accelerator pedal

Engine Coolant Temperature (ECT) Sensor
Removal and Installation

S6JB0A1326011

Removal

1) Disconnect negative cable at battery.
2) Drain cooling system referring to “Cooling System

Description: For Diesel Engine Model in Section 1F”.

3) Disconnect ECT sensor connector (1).

4) Remove ECT sensor (1) from thermostat assembly

by removing clip (2).

Installation
Reverse removal procedure for installation noting the
following.
• Check ECT sensor O-ring for damage.

If malfunction is found, replace ECT sensor.

• Refill cooling system referring to “Cooling System

Refilling: For Diesel Engine Model in Section 1F”.

• Check cooling system leakage referring to “Engine

Cooling System Inspection and Cleaning: For Diesel
Engine Model in Section 1F”.

[C]: Sensor output voltage
[D]: Idle position of accelerator pedal

[E]: Fully depressed position of accelerator pedal

[F]: Pedal stroke

1

2

3

4

I5JB0A130020-02

[C]

[B]

[D]

[F]

[E]

[A]

1.74 - 2.17 V

0.65 - 0.82 V

3.50 - 4.27 V

0.30 - 0.44 V

I5JB0A130021-05

1

I5JB0B130003-01

1

2

I5JB0B130004-01

Engine Electrical Devices: For Diesel Engine Model 1C-29

Engine Coolant Temperature (ECT) Sensor
Inspection

S6JB0A1326012

1) Remove ECT sensor referring to “Engine Coolant

Temperature (ECT) Sensor Removal and
Installation: For Diesel Engine Model”.

2) Immerse temperature sensing part of ECT sensor in

water and measure resistance between sensor
terminal (1) and (2) while heating water gradually.
If measured resistance doesn’t show such
characteristic as shown, replace ECT sensor.

ECT sensor resistance

Camshaft Position (CMP) Sensor Removal and
Installation

S6JB0A1326013

Removal

1) Disconnect negative cable at battery.
2) Remove injector cover referring to “Cylinder Head

Cover Removal and Installation: For F9Q Engine in
Section 1D”.

3) Remove CMP sensor (1) from generator upper

bracket support.

Installation
Reverse removal procedure for installation noting the
following.
• Clean CMP sensor and protrusion of camshaft pulley

before installation.

• Tighten throttle body to EGR valve pipe to specified

torque.

Tightening torque
Throttle body to EGR valve pipe: 21 N·m (2.1 kgf-
m, 15.5 lb-ft)

Crankshaft Position (CKP) Sensor (Engine
Speed Sensor) Removal and Installation

S6JB0A1326014

Removal

1) Disconnect negative cable at battery.
2) Hoist vehicle.
3) Disconnect connector (1) from CKP sensor (2).
4) Remove CKP sensor from transmission case.

Water temperature

°C (°F)

Resistance (k

Ω)

25 (77)

2.140 – 2.364

50 (122)

0.770 – 0.850

80 (176)

0.272 – 0.288

[A]: Resistance
[B]: Temperature

I4SN0A132012-01

1

I5JB0B130005-01

1

2

I5JB0B130007-01

1C-30 Engine Electrical Devices: For Diesel Engine Model

Installation
Reverse removal procedure for installation noting the
following.
• Clean CKP sensor and sensor rotor teeth before

installation.

• Tighten CKP sensor bolt to specified torque.

Tightening torque
CKP sensor bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)

Crankshaft Position (CKP) (Engine Speed
Sensor) Sensor Inspection

S6JB0A1326015

1) Remove CKP sensor referring to “Crankshaft

Position (CKP) Sensor (Engine Speed Sensor)
Removal and Installation: For Diesel Engine Model”.

2) Check that CKP sensor (1) and sensor rotor tooth (2)

are free from any metal particles and damage.

3) Check that resistance between terminals of CKP

sensor is within specification.
If resistance is not as specified, replace CKP sensor.

CKP sensor resistance
612 – 880

Ω at 20 °C, 68 °F

Boost Pressure Sensor Removal and
Installation

S6JB0A1326020

Removal

1) Disconnect negative cable at battery.
2) Disconnect connector (1) from boost pressure

sensor (2).

3) Remove boost pressure sensor from throttle body to

EGR valve pipe.

Installation
Reverse removal procedure for installation noting the
following.
• Check boost pressure sensor O-ring for damage.

If malfunction is found, replace boost pressure sensor.

• Tighten boost pressure sensor bolt to specified

torque.

Tightening torque
Boost pressure sensor bolt (a): 8 N·m (0.8 kgf-m,
6.0 lb-ft)

(a)

I5JB0B130008-01

I5JB0B130009-02

I5JB0B130010-01

2

1

I5JB0B130011-01

(a)

I6JB0A132002-01

Engine Electrical Devices: For Diesel Engine Model 1C-31

Main Relay and Fuel Heater Relay Inspection

S6JB0A1326022

1) Disconnect negative cable at battery.
2) Remove main relay (1) and fuel heater relay (2) from

relay connector.

3) Check that there is no continuity between terminal

“c” and “d”.
If there is continuity, replace relay.

4) Connect battery positive (+) terminal to terminal “b”

of relay. Connect battery negative (–) terminal “a” of
relay.
Check continuity between terminal “c” and “d”.
If there is no continuity when relay is connected to
the battery, replace relay.

Glow Plug Control Module Removal and
Installation

S6JB0A1326023

Removal

1) Disconnect negative cable at battery.
2) Disconnect glow plug control module unit connector

(1).

3) Remove glow plug control module unit (2) from

bracket.

Installation
Reverse removal procedure for installation.

Boost Pressure Control Solenoid Valve
Removal and Installation

S6JB0A1326029

Removal

1) Disconnect negative cable at battery.
2) Detach boost pressure control solenoid valve (1).
3) Disconnect boost pressure control solenoid valve

connector (2) and hoses (3) from boost pressure
control solenoid valve.

Installation
Reverse removal procedure for installation.

1

2

I5JB0B130012-01

I4SN0A132024-01

2

1

I5JB0B130013-01

1

3

2

I5JB0B130014-02