Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 62

 

  Index      Suzuki     Suzuki Grand Vitara JB416 / JB420 / JB419 - service repair manual 2007 year

 

Search            

 

 

 

 

 

 

 

  

 

Content   ..  60  61  62  63   ..

 

 

Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 62

 

 

1A-195 Engine General Information and Diagnosis: For Petrol Engine Model

DTC Troubleshooting

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

 

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: For 
Petrol Engine Model”.

2

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

assembly and ECM with ignition switch turned OFF.

2) Check for proper connection of electric throttle body 

assembly and ECM connectors at “BLU/YEL” wire, 
“BLU/RED” wire, “C37-45” and “C37-44” terminals.

For J20 engine

For M16 engine

3) Turn ON ignition switch.
4) Measure voltage between “BLU/YEL” wire terminal of 

electric throttle body assembly connector and engine 
ground, between “BLU/RED” wire terminal of electric 
throttle body assembly connector and engine ground.

Is voltage 0 V?

Go to Step 3.

“BLU/YEL” wire and/or 
“BLU/RED” wire is 
shorted to power circuit.

3

Throttle actuator circuit check
1) Turn OFF ignition switch.
2) Measure resistance between “BLU/YEL” wire terminal of 

electric throttle body assembly connector and engine 
ground, between “BLU/RED” wire terminal of electric 
throttle body assembly connector and engine ground.

Is resistance infinity?

Go to Step 4.

“BLU/YEL” wire and/or 
“BLU/RED” wire is 
shorted to ground 
circuit.

4

Throttle actuator circuit check
1) Check throttle actuator referring to “Throttle Actuator 

(Motor) Check” under “Electric Throttle Body Assembly 
On-Vehicle Inspection: For Petrol Engine Model in 
Section 1C”.

Is check result satisfactory?

Substitute a known-
good ECM and recheck.

Replace electric throttle 
body assembly.

"BLK"

"WHT"

"RED"

"GRN"

"BLU/YEL"

"BLU/RED"

I5JB0A110042-01

"BLU/RED"

"BLU/YEL"

"GRN"

"RED"

"WHT"

"BLK"

I5JB0A110043-01

Engine General Information and Diagnosis: For Petrol Engine Model 1A-196

DTC P2102: Throttle Actuator Control Motor Circuit Low

S6JB0A1114069

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

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) Start engine and run it for 1 min. or more.
4) Check DTC.

DTC Troubleshooting

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

 

DTC detecting condition

Trouble area

Power supply voltage of throttle actuator control circuit is 
less than 5 V for specified time even if throttle actuator 
control relay is turned on.
(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: For 
Petrol Engine Model”

2

Throttle actuator control relay circuit check
1) Remove ECM from its bracket with ECM connectors 

connected.

2) Check for proper connection of ECM connector at “E23-

50” and “E23-17” terminals.

3) Turn ON ignition switch.
4) Measure voltage between “E23-17” terminal of ECM 

connector and engine ground.

Is voltage 10 – 14 V?

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

Go to Step 3.

3

Is “THR MOT” fuse in good condition?

Go to Step 4

Replace fuse and check 
for short in circuits 
connected to this fuse.

4

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) Measure voltage between engine ground and each 

“BLU/BLK”, “BLU/RED” wire terminal with ignition switch 
turned ON.

Is each voltage 10 – 14 V?

Go to Step 5

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

1A-197 Engine General Information and Diagnosis: For Petrol Engine Model

5

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

turned OFF.

2) Measure resistance at following connector terminals.

• Between “BLU/ORN” wire terminal of throttle actuator 

control relay connector and “E23-50” terminal of ECM 
connector

• Between “GRN” wire terminal of throttle actuator 

control relay connector and “E23-17” terminal of ECM 
connector

Is each resistance below 3 

Ω

?

Go to Step 6.

“BLU/ORN” wire and/or 
“GRN” wire is open or 
high resistance.

6

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

Relay Inspection: For Petrol Engine Model in Section 
1C”.

Is it in good condition?

Substitute a known-
good ECM and recheck.

Replace throttle 
actuator control relay.

Step

Action

Yes

No

Engine General Information and Diagnosis: For Petrol Engine Model 1A-198

DTC P2103: Throttle Actuator Control Motor Circuit High

S6JB0A1114070

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

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: For Petrol Engine Model”.

 

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: For 
Petrol Engine Model”.

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: For Petrol Engine Model in Section 
1C”.

Is it in good condition?

Substitute a known-
good ECM and recheck.

Replace throttle 
actuator control relay.

 

 

 

 

 

 

 

Content   ..  60  61  62  63   ..