Dtc P0113: Intake Air Temperature Sensor Circuit High - Suzuki SX4 Service Manual

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1A-78 Engine General Information and Diagnosis:
Step
5
IAT short circuit check
1) Turn ON ignition switch.
2) Measure voltage between "BLK/YEL" wire terminal of
MAF and IAT sensor connector and vehicle body
ground.
Is voltage about 0 V?
6
IAT sensor for performance check
1) Check IAT sensor according to "Intake Air Temperature
(IAT) Sensor Inspection in Section 1C".
Is it in good condition?

DTC P0113: Intake Air Temperature Sensor Circuit High

Wiring Diagram
Refer to "DTC P0111: Intake Air Temperature Circuit Range / Performance".
DTC Detecting Condition and Trouble Area
Voltage of IAT sensor output is more than specified value with engine running.
(Low intake air temperature (high voltage / high resistance))
(1 driving cycle detection logic)
NOTE
When DTC P0108 and P0118 are indicated together, it is possible that "GRY/BLU" wire circuit is open.
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 10 sec.
4) Check DTC and pending DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting 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
IAT sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check intake air temp. displayed on scan tool.
°
°
Is –40
C (–40
F) indicated?
Action
DTC detecting condition
Action
Yes
Go to Step 6.
Substitute a known-
good ECM and recheck.
• IAT sensor circuit
• IAT sensor
• ECM
Yes
Go to Step 2.
Go to Step 3.
No
"BLK/YEL" wire is
shorted to other circuit.
If wire is OK, substitute
a known-good ECM and
recheck.
Replace MAF and IAT
sensor.
S7RW0A1104027
Trouble area
No
Go to "Engine and
Emission Control
System Check".
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".

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