Suzuki 2006 SX4, Service Manual

Page: 164 / 1478

1A-120 Engine General Information and Diagnosis:
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Keep the accelerator pedal at idle position for 2 sec.
4) Keep the accelerator pedal at fully depressed position for 2 sec.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC.
DTC Troubleshooting
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 APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it in good condition?
Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3 APP sensor (sub) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 2 Volt”
displayed on scan tool when accelerator pedal is idle
position and fully depressed.
Is displayed APP 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 4.
4 Wire harness check
1) Turn ignition switch OFF position.
2) Disconnect connectors from APP sensor and ECM.
3) Check for proper terminal connection to APP sensor and
ECM connectors.
4) If connections are OK, check that APP sensor (sub)
circuit is as follows.
• Wiring harness resistance of each APP sensor (sub)
power supply, signal and ground circuit is less than 3
Ω
• Insulation resistance of each APP sensor (sub) power
supply and signal circuit is infinity between APP
sensor connector and vehicle body ground.
• Insulation resistance of wire harness is infinity
between APP sensor (sub) power supply terminal and
each other terminal at APP sensor connector.
• Circuit voltage of each APP sensor (sub) power
supply, signal and ground circuit is 0 – 1 V with
ignition switch turned ON
Are they in good condition?
Go to Step 5. Repair or replace APP
sensor (sub) power
supply, signal and/or
ground circuit(s).