Suzuki Grand Vitara JB416 / JB420. Manual - part 61

1A-193 Engine General Information and Diagnosis: 

DTC P2103: Throttle Actuator Control Motor Circuit High

S5JB0A1104079

Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance”.

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool. 
2) Turn ON ignition switch and clear DTC using scan tool.
3) Ignition switch turned OFF for 20 sec. or more.
4) Turn ON ignition switch and check DTC.

DTC Troubleshooting

NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to 
“Precautions For DTC Troubleshooting”.

 

DTC detecting condition

Trouble area

Power supply voltage of throttle actuator control circuit is 
more than 5 V for specified time even if throttle actuator 
control relay is turned off.
(1 driving detection logic)

• Throttle actuator control relay circuit
• Throttle actuator control relay
• ECM

Step

Action

Yes

No

1

Was “Engine and Emission Control System Check” 
performed?

Go to Step 2.

Go to “Engine and 
Emission Control 
System Check”.

2

Throttle actuator control relay circuit check
1) Remove throttle actuator control relay from relay box 

with ignition switch turned OFF.

2) Check for proper connection to throttle actuator control 

relay at “BLU/BLK”, “BLU/RED”, “BLU/ORN” and “GRN” 
wire terminals.

3) Turn ON ignition switch.
4) Measure voltage between engine ground and “E23-17” 

terminal of ECM connector.

Is voltage 0 V?

Go to Step 3.

“GRN” wire is shorted to 
other circuit.

3

Throttle actuator control relay circuit check
1) Disconnect connectors from ECM with ignition switch 

turned OFF.

2) Measure resistance between engine ground and “E23-

50” terminal of ECM connector.

Is resistance infinity?

Go to Step 4.

“BLU/ORN” wire is 
shorted to ground 
circuit.

4

Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Control 

Relay Inspection in Section 1C”.

Is it in good condition?

Substitute a known-
good ECM and recheck.

Replace throttle 
actuator control relay.

Engine General Information and Diagnosis:  1A-194

DTC P2111: Throttle Actuator Control System - Stuck Open

S5JB0A1104080

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool. 
2) Turn ON ignition switch and clear DTC using scan tool.
3) Ignition switch turned OFF for 20 sec. or more.
4) Turn ON ignition switch and check DTC.

DTC Troubleshooting

NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to 
“Precautions For DTC Troubleshooting”.

 

DTC detecting condition

Trouble area

Throttle valve default opening is greater than 7

° from 

complementary closed position when diagnosing throttle 
valve at ignition switch turned OFF.
(1 driving detection logic)

• Electric throttle body assembly
• ECM

Step

Action

Yes

No

1

Was “Engine and Emission Control System Check” 
performed?

Go to Step 2.

Go to “Engine and 
Emission Control 
System Check”.

2

Throttle valve visual check
1) Check that there isn’t any foreign matter caught between 

throttle valve and throttle body housing referring to 
“Throttle Valve Visual Check” under “Electric Throttle 
Body Assembly On-Vehicle Inspection in Section 1C”.

Is it in good condition?

Go to Step 3.

Take it out after 
removing throttle body 
and clean inside of 
throttle body thoroughly.

3

Throttle valve operation check 
1) Check operation of throttle valve referring to “Throttle 

Valve Operation Check” under “Electric Throttle Body 
Assembly On-Vehicle Inspection in Section 1C”.

Is check result satisfactory?

Go to Step 4.

Replace electric throttle 
body assembly.

4

Throttle actuator (motor) check
1) Check operation of throttle actuator referring to “Throttle 

Actuator (Motor) Check” under “Electric Throttle Body 
Assembly On-Vehicle Inspection in Section 1C”.

Is check result satisfactory?

Go to Step 5.

Replace electric throttle 
body assembly.

5

Throttle position sensor performance check
1) Check performance of throttle position sensor referring 

to “Throttle Position Sensor Performance Check” under 
“Electric Throttle Body Assembly On-Vehicle Inspection 
in Section 1C”.

Is check result satisfactory?

Substitute a known-
good ECM and recheck.

Replace electric throttle 
body assembly.

1A-195 Engine General Information and Diagnosis: 

DTC P2119: Throttle Actuator Control Throttle Body Range / Performance

S5JB0A1104081

Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance”.

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool. 
2) Turn ON ignition switch and clear DTC using scan tool.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC.

DTC Troubleshooting

NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to 
“Precautions For DTC Troubleshooting”.

 

DTC detecting condition

Trouble area

Difference between the measured (actual) throttle valve 
opening angle and the target throttle valve opening angle 
which is calculated based on accelerator pedal opening 
angle and engine condition is more than specification for 
specified time continuously.
(1 driving detection logic)

• Throttle actuator circuit
• Electric throttle body assembly
• ECM

Step

Action

Yes

No

1

Was “Engine and Emission Control System Check” 
performed?

Go to Step 2.

Go to “Engine and 
Emission Control 
System Check”.

2

Electric throttle body assembly system check
1) Connect scan tool to DLC with ignition switch turned 

OFF.

2) Turn ON ignition switch, check each voltage of “TP 

Sensor 1 Volt” and “TP Sensor 2 Volt” displayed on scan 
tool when accelerator pedal is idle position and fully 
depressed.

Is displayed each TP sensor value as described voltage in 
“Scan Tool Data”?

Intermittent trouble. 
Check for intermittent 
referring to “Intermittent 
and Poor Connection 
Inspection in Section 
00”.

Go to Step 3.

Engine General Information and Diagnosis:  1A-196

3

Throttle actuator circuit check
1) Disconnect connector from electric throttle body 

assembly with ignition switch turned OFF.

2) Check for proper connection to electric throttle body 

assembly at “BLU/YEL” and “BLU/RED” wire terminals.

For J20 engine

For M16 engine

3) Disconnect connectors from ECM.
4) Check for proper connection to ECM at “C37-45” and 

“C37-44” terminals.

5) Measure resistance at following connector terminals.

• Between “BLU/YEL” wire terminal of electric throttle 

body assembly connector and “C37-45” terminal of 
ECM connector

• Between “BLU/RED” wire terminal of electric throttle 

body assembly connector and “C37-44” terminal of 
ECM connector

Is each resistance below 3 

Ω

?

Go to Step 4.

“BLU/YEL” wire and/or 
“BLU/RED” wire is open 
or high resistance.

4

Electric throttle body assembly check
1) Check electric throttle body assembly referring to 

“Electric Throttle Body Assembly and Its Circuit Check” 
under “Electric Throttle Body Assembly On-Vehicle 
Inspection in Section 1C”.

Is check result satisfactory?

Substitute a known-
good ECM and recheck.

Replace electric throttle 
body assembly.

Step

Action

Yes

No

"BLK"

"WHT"

"RED"

"GRN"

"BLU/YEL"

"BLU/RED"

I5JB0A110042-01

"BLU/RED"

"BLU/YEL"

"GRN"

"RED"

"WHT"

"BLK"

I5JB0A110043-01