Dtc P0118: Engine Coolant Temperature Circuit High - Suzuki Grand Vitara 2011 Manual

DTC P0118: Engine Coolant Temperature Circuit High

Wiring Diagram
Refer to "DTC P0116: Engine Coolant Temperature Circuit Range / Performance: For Petrol Engine Model".
DTC Detecting Condition and Trouble Area
DTC detecting condition
Voltage of ECT sensor output is more than 4.8 V for 0.5 sec
continuously
(Low engine coolant temperature (high voltage / high resistance))
(1 driving cycle detection logic)
NOTE
When DTC P0108, P0113 and P0533 are indicated together, it is possible that "GRY/GRN" wire circuit
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. or more.
4) Check DTC and pending 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".
Step
1 Was "Engine and Emission Control System Check"
performed?
2 ECT sensor and its circuit check
1) Connect scan tool with ignition switch turned OFF.
2) Turn ON ignition switch.
3) Check engine coolant temp. displayed on scan tool.
° °
Is –40 C (–40 F) indicated?
3 ECT voltage check
1) Disconnect connector from ECT sensor with ignition
switch turned OFF.
2) Check for proper connection to ECT sensor at "PPL/
YEL" and "GRY/GRN" wire terminals.
3) If OK, then turn ON ignition switch, measure voltage
between "PPL/YEL" wire terminal of ECT sensor
connector and vehicle body ground.
Is voltage about 4 – 6 V?
Engine General Information and Diagnosis: For Petrol Engine Model 1A-102
Action
I5JB0A110040-01
Trouble area
• ECT sensor circuit
• ECT sensor
• ECM
Yes
Go to Step 2.
Go to Step 3.
Go to Step 6.
S6JB0A1114029
No
Go to "Engine and
Emission Control
System Check: For
Petrol Engine Model".
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Go to Step 4.