Suzuki Grand Vitara JB416 / JB420. Manual — part 22
1A-37 Engine General Information and Diagnosis:
P0123
Throttle position sensor (main) circuit high
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
• ECM stops air/fuel ratio control.
P0131
O2 sensor (HO2S) circuit low voltage (Sensor-1)
ECM stops air/fuel ratio control.
P0132
O2 sensor (HO2S) circuit high voltage (Sensor-1)
P0134
O2 sensor (HO2S) circuit no activity detected
(Sensor-1)
P0222
Throttle position sensor (sub) circuit low
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P0223
Throttle position sensor (sub) circuit high
P0335
Crankshaft position sensor circuit
Ignition timing is fixed.
P0500
Vehicle speed sensor
ECM controls actuators assuming that vehicle
speed is 0 km/h (0 mile/h).
P2101
Throttle actuator control motor circuit range /
performance
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2102
Throttle actuator control motor circuit low
P2103
Throttle actuator control motor circuit high
ECM controls fuel cut at specified engine speed.
P2111
Throttle actuator control system – stuck open
• Throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2119
Throttle actuator control throttle body range /
performance
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2122
Pedal position sensor (main) circuit low input
• Throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2123
Pedal position sensor (main) circuit high input
P2127
Pedal position sensor (sub) circuit low input
P2128
Pedal position sensor (sub) circuit high input
P2135
Throttle position sensor (main) / (sub) voltage
correlation
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2138
Pedal position sensor (main) / (sub) voltage
correlation
• Throttle valve is fixed at the opening of about 7
°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
P2227
Barometric pressure sensor performance problem
ECM controls actuators assuming that barometric
pressure is 101.33 kPa (762 mmHg).
DTC No.
Detected item
Fail-safe operation
Engine General Information and Diagnosis: 1A-38
Scan Tool Data
S5JB0A1104007
As the data values are standard values estimated on the basis of values obtained from the normally operating vehicles
by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases
where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not
be made by checking with these data alone.
Also, conditions that can be checked by the scan tool are those detected by ECM and output from ECM as commands
and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool.
Be sure to use the timing light to check the ignition timing.
NOTE
• With the generic scan tool, only star (*) marked data in the following table can be read.
• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the
neutral gear position and A/T gear to the “Park” position and pull the parking brake fully. Also, if
nothing or “no load” is indicated, turn OFF A/C (if equipped with A/C), all electric loads, P/S and all
the other necessary switches.
Scan tool data
Vehicle condition
Normal condition /
reference values
*
(ENGINE COOLANT TEMP.)
At specified idle speed after warming up
80 – 100
°C, 176 – 212 °F
* )INTAKE AIR TEMP.
At specified idle speed after warming up
–5
°C (23 °F) + environmental
temp. to 40
°C (104 °F) +
environmental temp.
It idling with no load after warming up
Desired idle speed
± 50 rpm
DESIRED IDLE (DESIRED
IDLE SPEED)
It idling with radiator cooling fan stopped and all
electrical parts turned OFF after warming up, M/T at
neutral
650 rpm (for J20 engine), 660
rpm (for M16 engine)
*
MAF (MASS AIR FLOW
RATE)
At specified idle speed with no load after warming
up
1.0 – 4.0 g/s 0.14 – 0.52 lb/
min.
At 2500 r/min. with no load after warming up
4.0 – 12.0 g/s 0.53 – 1.58 lb/
min.
*
(CALCULATED LOAD
VALUE)
At specified idle speed with no load after warming
up
0 – 10%
At 2500 r/min. with no load after warming up
0 – 10%
*
MAP (INTAKE MANIFOLD
ABSOLUTE PRESSURE)
At specified idle speed with no load after warming
up
24 – 38 kPa, 7.1 – 11.2 in.Hg
*
THROTTLE POSITION
(ABSOLUTE THROTTLE
POSITION)
Ignition switch ON /
warmed up engine
stopped
Accelerator pedal released
0 – 5%
Accelerator pedal depressed
fully
90 – 100%
—
Barometric pressure is
displayed
FUEL TANK LEVEL
Ignition switch ON
0 – 100%
BATTERY VOLTAGE
Ignition switch ON / engine at stop
10 – 14 V
BATTERY CURRENT (for
J20 engine)
At 2000 r/min. with no load after warming up
10.0 – 16.0 A
At 2000 r/min. with headlight ON and blower motor
switch at HI position after warming up
35.0 – 45.0 A
BRAKE SWITCH
Ignition switch ON
Brake pedal is released
OFF
Brake pedal is depressed
ON
INTAKE TUNING SOL
(INTAKE MANIFOLD
TUNING VALVE) (for J20
engine)
At specified idle speed after warming up
ON
Engine speed at 4700 rpm or more
OFF
*
FUEL SYSTEM B1 (FUEL
SYSTEM STATUS)
At specified idle speed after warming up
CLSD (closed loop)
*
OXYGEN SENSOR-2)
At 2000 r/min. for 3 min. or longer after warming up
0.1 – 0.95 V
*
SHORT FT B1 (SHORT
TERM FUEL TRIM)
At specified idle speed after warming up
–20 – +20%
1A-39 Engine General Information and Diagnosis:
*
LONG FT B1 (LONG
TERM FUEL TRIM)
At specified idle speed after warming up
–20 – +20%
TOTAL FUEL TRIM B1
At specified idle speed after warming up
–35 – +35%
*
A/F B1 S1 CURRENT (A/F
SENSOR OUTPUT
CURRENT)
At specified idle speed after warming up
–0.20 – 0.10 mA
FUEL CUT
Engine at fuel cut condition
ON
Engine at other than fuel cut condition
OFF
O2S B1 S2 ACT (HEATED
OXYGEN SENSOR-2)
At specified idle speed after warming up
ACTIVE
A/F B1 S1 ACT (A/F
SENSOR)
At specified idle speed after warming up
ACTIVE
CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)
At specified idle speed after warming up
0%
*
IGNITION ADVANCE
(IGNITION TIMING
ADVANCE FOR NO.1
CYLINDER)
At specified idle speed with no load after warming
up
5 – 15
° BTDC (for J20 engine),
7 – 17
° BTDC (for M16
engine)
EGR VALVE OPENING
At specified idle speed after warming up
0%
VVT GAP (TARGET-
ACTUAL POSITION) (for
M16 engine)
At specified idle speed after warming up
0 – 3
°
GENERATOR CONT
DUTY (GENERATOR
CONTROL DUTY)
At specified idle speed with no load after warming
up
100%
GENERATOR FIELD
DUTY (GENERATOR FIELD
COIL DUTY)
At specified idle speed with no load after warming
up
10.0 – 50.0%
FUEL PUMP
Within 2 seconds after ignition switch ON or engine
running
ON
Engine at stop with ignition switch ON
OFF
STARTER SW (STARTER
SWITCH)
Ignition switch is turned to ST (engine cranking)
position
ON
A/C PRESSURE (A/C
REFRIGERANT ABSOLUTE
PRESSURE)
Engine running
A/C ON (A/C is operating) at
ambient temperature: 30
°C
(86
°F) and humidity: 50%
1300 – 1480 kPa (for J20
engine), 1150 – 1280 kPa (for
M16 engine) For more details,
refer to pressure of high
pressure gage under “A/C
A/C OFF (A/C is not
operating) at ambient
temperature: 30
°C (86 °F)
and engine coolant
temperature: 90 – 100
°C
(194 – 212
°F)
600 – 1000 kPa After longer
than 10 min from A/C switch
turned off
A/C SWITCH
Engine running after warming up, A/C not operating
OFF
Engine running after warming up, A/C operating
ON
A/C COMP RELAY
Engine running
A/C switch and blower motor
switch turned ON
ON
A/C switch and blower motor
switch turned OFF
OFF
BLOWER FAN
Ignition switch ON
Blower fan switch: 5th speed
position or more
ON
Blower fan switch: under 4th
speed position
OFF
Scan tool data
Vehicle condition
Normal condition /
reference values
Engine General Information and Diagnosis: 1A-40
Ignition switch ON / Headlight, small light, all turned
OFF
OFF
Ignition switch ON / Headlight, small light, turned
ON
ON
PSP SWITCH (POWER
STEERING PUMP
PRESSURE SWITCH)
At specified idle speed and steering wheel at
straight ahead position
OFF
At specified idle speed and steering wheel turned to
the right or left as far as it stops
ON
RADIATOR FAN LOW
(RADIATOR COOLING FAN
CONTROL RELAY No.1)
Ignition switch ON
Engine coolant temp.: Lower
than 95
°C (203 °F)
OFF
Engine coolant temp.: 97.5
°C (208 °F) or higher
ON
RADIATOR FAN NO.1
HIGH (RADIATOR COOLING
FAN CONTROL RELAY
NO.2)
Ignition switch ON
Engine coolant temp.: lower
than 100
°C (212 °F)
OFF
Engine coolant temp.: 102.5
°C (212 °F) or higher
ON
RADIATOR FAN NO.2
HIGH (RADIATOR COOLING
FAN CONTROL RELAY
NO.3)
Ignition switch ON
Engine coolant temp.: lower
than 100
°C (212 °F)
OFF
Engine coolant temp.: 102.5
°C (212 °F) or higher
ON
(THROTTLE POSITION
SENSOR (MAIN) OUTPUT
VOLTAGE)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
0.7 – 1.2 V
Accelerator pedal depressed
fully
3.6 – 4.3 V
(THROTTLE POSITION
SENSOR (SUB) OUTPUT
VOLTAGE)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
1.6 – 2.0 V
Accelerator pedal depressed
fully
3.8 – 4.5 V
APP SENSOR 1 VOLT
(ACCELERATOR PEDAL
POSITION (APP) SENSOR
(MAIN) OUTPUT VOLTAGE)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
0.7 – 0.8 V
Accelerator pedal depressed
fully
3.5 – 4.3 V
APP SENSOR 2 VOLT
(ACCELERATOR PEDAL
POSITION (APP) SENSOR
(SUB) OUTPUT VOLTAGE)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
0.3 – 0.4 V
Accelerator pedal depressed
fully
1.7 – 2.2 V
ACCEL POSITION
(ABSOLUTE
ACCELERATOR PEDAL
POSITION)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
0 – 5%
Accelerator pedal depressed
fully
90 – 100%
TARGET THROTTLE
POSI (TARGET THROTTLE
VALVE POSITION)
Ignition switch ON
after warmed up
engine
Accelerator pedal released
0 – 5%
Accelerator pedal depressed
fully
90 – 100%
IAC THROTTLE
OPENING (IDLE AIR
CONTROL THROTTLE
VALVE OPENING)
It idling with no load after warming up
5 – 55%
VOLT
Ignition switch ON / engine at stop
10.0 – 14.0 V
POS (CLOSED THROTTLE
POSITION)
Throttle valve at idle position
ON
Throttle valve opens larger than idle position
OFF
RELAY
At specified idle speed after warming up
ON
At stop
0 km/h (0 mph)
INJ PULSE WIDTH (FUEL
INJECTION PULSE WIDTH)
At specified idle speed with no load after warming
up
2.0 – 4.0 msec.
At 2500 r/min. with no load after warming up
2.0 – 3.6 msec.
Scan tool data
Vehicle condition
Normal condition /
reference values
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