Suzuki Grand Vitara JB416 / JB420. Manual - part 68

1A-221 Engine General Information and Diagnosis: 

C37-60

BRN/

WHT

Oil control valve 
output (for M16 
engine)

*0 – 0.6 V

↑↓

10 – 14 V

(“Reference 

waveform No.28: ” 

and “Reference 

waveform No.29: ”)

At the moment of ignition 
switch turned ON.

Output signal is active 
high pulse. Duty ratio 
varies depending on 
vehicle condition.

Terminal 

No.

Wire 

color

Circuit

Normal voltage

Condition

Remarks

Terminal 

No.

Wire 

color

Circuit

Normal voltage

Condition

Remarks

E23-1

BLU/

BLK

Main power supply

10 – 14 V

Ignition switch turned ON.

—

E23-2

WHT

Power source for 
ECM internal 
memory

10 – 14 V

Ignition switch turned ON.

—

E23-3

—

—

—

—

—

E23-4

WHT/

RED

CAN (high) 
communication line 
(active high signal) 
to ABS hydraulic 
unit / control 
module assembly

*2.5 – 4.5 V
(“Reference 

waveform No.30: ”)

Ignition switch turned ON 
with engine at stop.

CAN communication line 
signal is pulse. Pulse 
signal displayed with a 
regular frequency which 
varies depending on 
engine condition.

E23-5

PPL/

WHT

Serial 
communication line 
of data link 
connector 12 V

8 – 14 V

Ignition switch turned ON.

—

E23-6

BLK/

WHT

Cruise control main 
switch signal (if 
equipped with 
cruise control 
system)

10 – 14 V

Ignition switch turned ON, 
cruise control main switch 
to ON position. (cruise 
control main switch is kept 
in push)

—

E23-7

BLU

Clutch pedal 
position switch 
signal (for M/T 
model, if equipped 
with cruise control 
system)

4 – 6 V

Ignition switch turned ON, 
clutch pedal not 
depressed.

—

0 – 1 V

Ignition switch turned ON, 
clutch pedal full 
depressed.

E23-8

YEL/
GRN

Brake pedal 
position switch 
signal (if equipped 
with cruise control 
system)

10 – 14 V

Ignition switch turned ON, 
stop lamp not lit up.

—

0 – 1 V

Ignition switch turned ON, 
stop lamp lit up.

E23-9

—

—

—

—

—

E23-10

—

—

—

—

—

E23-11

—

—

—

—

—

E23-12

YEL

Diagnosis switch 
terminal (if 
equipped)

4 – 5 V

Ignition switch turned ON.

—

E23-13

PNK/

BLU

Clock signal for 
immobilizer coil 
antenna (if 
equipped)

10 – 14 V

Ignition switch turned ON.

—

E23-14

—

—

—

—

—

Engine General Information and Diagnosis:  1A-222

E23-15

WHT/

GRN

Fuel pump relay 
output

0 – 2.5 V

For 2 sec. from the time 
ignition switch is turned 
ON or while engine is 
running.

—

10 – 14 V

On and after 2 sec. from 
the time ignition switch is 
turned ON or while engine 
is at stop.

E23-16

BLU/

BLK

Main power supply

10 – 14 V

Ignition switch turned ON.

—

E23-17

GRN

Power supply of 
throttle actuator 
drive circuit

10 – 14 V

Ignition switch turned ON.

—

E23-18

—

—

—

—

—

E23-19

WHT/

BLU

CAN (low) 
communication line 
(active low signal) 
to ABS hydraulic 
unit / control 
module assembly

*0.5 – 2.5 V
(“Reference 

waveform No.30: ”)

Ignition switch turned ON 
with engine stop.

CAN communication line 
signal is pulse. Pulse 
signal displayed with a 
regular frequency which 
varies depending on 
engine condition.

E23-20

GRN/

WHT

Stop lamp switch 
signal

0 – 1 V

Ignition switch turned ON, 
stop lamp not lit up.

—

10 – 14 V

Ignition switch turned ON, 
stop lamp lit up.

E23-21

BLK/

YEL

Cruise control 
command switch 
ground (if equipped 
with cruise control 
system)

Below 1.3 V

Ignition switch turned ON.

—

E23-22 LT GRN

Cruise control 
command switch 
signal (if equipped 
with cruise control 
system)

4 – 6 V

Ignition switch turned ON.

—

E23-23

—

—

—

—

—

E23-24

YEL/

RED

Fuel level sensor 
signal

0 – 6 V

Ignition switch turned ON.
Voltage varies depends on 
fuel level.

—

E23-25

—

—

—

—

—

E23-26

—

—

—

—

—

E23-27

—

—

—

—

—

E23-28

GRY/

BLU

Serial 
communication line 
for immobilizer coil 
antenna (if 
equipped)

10 – 14 V

Ignition switch turned ON.

—

E23-29

BLK/

WHT

Ignition switch 
signal

0 – 1 V

Ignition switch turned OFF.

—

10 – 14 V

Ignition switch turned ON.

E23-30

—

—

—

—

—

E23-31

—

—

—

—

—

E23-32

—

—

—

—

—

E23-33

—

—

—

—

—

E23-34

—

—

—

—

—

E23-35

—

—

—

—

—

E23-36

—

—

—

—

—

E23-37

—

—

—

—

—

E23-38

—

—

—

—

—

E23-39

—

—

—

—

—

Terminal 

No.

Wire 

color

Circuit

Normal voltage

Condition

Remarks

1A-223 Engine General Information and Diagnosis: 

E23-40

—

—

—

—

—

E23-41

—

—

—

—

—

E23-42

—

—

—

—

—

E23-43

—

—

—

—

—

E23-44

—

—

—

—

—

E23-45

—

—

—

—

—

E23-46

RED/

BLK

Radiator cooling 
fan relay No.1 
output

10 – 14 V

Ignition switch turned ON, 
engine coolant temp.: 
below 95 

°C (203 °F), or 

A/C refrigerant pressure: 
below 300 kPa (43.5 psi) 
with A/C switch turned on 
while engine is running.

—

0 – 2 V

Ignition switch turned ON, 
engine coolant temp.: 97.5 

°C (207.5 °F) or higher, or 
A/C refrigerant pressure: 
340 kPa (49.3 psi) or 
higher with A/C switch 
turned on while engine is 
running.

E23-47

RED

Radiator cooling 
fan relay No.2 
output

10 – 14 V

Ignition switch turned ON, 
engine coolant temp.: 
below 100 

°C (212 °F), or 

A/C refrigerant pressure: 
below 1300 kPa (188.5 
psi) with A/C switch turned 
on while engine is running.

—

0 – 2 V

Ignition switch turned ON, 
engine coolant temp.: 
102.5 

°C (216.5 °F) or 

higher, or A/C refrigerant 
pressure: 1600 kPa (232 
psi) or higher with A/C 
switch turned on while 
engine is running.

E23-48

RED/

YEL

Radiator cooling 
fan relay No.3 
output

10 – 14 V

Ignition switch turned ON, 
engine coolant temp.: 
below 100 

°C (212 °F), or 

A/C refrigerant pressure: 
below 1300 kPa (188.5 
psi) with A/C switch turned 
on while engine is running.

—

0 – 2 V

Ignition switch turned ON, 
engine coolant temp.: 
102.5 

°C (216.5 °F) or 

higher, or A/C refrigerant 
pressure: 1600 kPa (232 
psi) or higher with A/C 
switch turned on while 
engine is running.

E23-49

PNK

A/C compressor 
relay output (if 
equipped with A/C)

10 – 14 V

Engine running, A/C 
switch OFF and blower 
selector at OFF position.

—

0 – 1 V

Engine running, A/C 
switch ON and blower 
selector at 1st position or 
more.

Terminal 

No.

Wire 

color

Circuit

Normal voltage

Condition

Remarks

Engine General Information and Diagnosis:  1A-224

E23-50

BLU/
ORN

Throttle actuator 
control relay output

0 – 1 V

Ignition switch turned ON.

—

E23-51

BLU/

YEL

Ground for 
accelerator pedal 
position (APP) 
sensor (sub)

Below 0.3 V

Ignition switch turned ON.

—

E23-52

BLU/
GRN

Accelerator pedal 
position (APP) 
sensor (sub) signal

0.30 – 0.44 V

Ignition switch turned ON 
and accelerator pedal at 
idle position after warmed 
up engine.

—

1.74 – 2.17 V

Ignition switch turned ON 
and accelerator pedal at 
full depressed position 
after warmed up engine.

E23-53

ORN/

BLU

Output for 5 V 
power source of 
accelerator pedal 
position (APP) 
sensor (sub)

4.5 – 5.5 V

Ignition switch turned ON.

—

E23-54

ORN

Ground for 
accelerator pedal 
position (APP) 
sensor (main)

Below 0.3 V

Ignition switch turned ON.

—

E23-55

WHT/

BLU

Accelerator pedal 
position (APP) 
sensor (main) 
signal

0.65 – 0.82 V

Ignition switch turned ON 
and accelerator pedal at 
idle position after warmed 
up engine.

—

3.50 – 4.27 V

Ignition switch turned ON 
and accelerator pedal at 
full depressed position 
after warmed up engine.

E23-56

WHT

Output for 5 V 
power source of 
accelerator pedal 
position (APP) 
sensor (main)

4.5 – 5.5 V

Ignition switch turned ON.

—

E23-57

—

—

—

—

—

E23-58

—

—

—

—

—

E23-59

—

—

—

—

—

E23-60

BLU

Main power supply 
relay output

10 – 14 V

Ignition switch turned OFF.

—

0 – 2 V

Ignition switch turned ON.

Terminal 

No.

Wire 

color

Circuit

Normal voltage

Condition

Remarks