Suzuki GRAND VITARA Owner's Manual page 243

DTC Detecting Condition and Trouble Area
DTC detecting condition
Monitor signal of throttle actuator output (duty output) is
inconsistent with throttle actuator control command.
(1 driving detection logic)
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: ".
Step
1 Was "Engine and Emission Control System Check"
performed?
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.
"BLU/YEL"
"BLU/RED"
"BLK"
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?
Action
For J20 engine
"RED"
"GRN"
"WHT"
"BLK"
For M16 engine
"GRN"
"RED"
"BLU/YEL"
"WHT"
"BLU/RED"
Engine General Information and Diagnosis:
• Throttle actuator circuit
• Electric throttle body assembly
• ECM
Yes
Go to Step 2.
Go to Step 3.
I5JB0A110042-01
I5JB0A110043-01
Trouble area
No
Go to "Engine and
Emission Control
System Check: ".
"BLU/YEL" wire and/or
"BLU/RED" wire is
shorted to power circuit.
1A-188