Dtc P0117: Engine Coolant Temperature Circuit Low - Suzuki Grand Vitara 2011 Manual

Step
10 Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between "C37-57" terminal of ECM
connector and vehicle body ground.
Is resistance below 3
11 ECT sensor check
1) Check ECT sensor according to "Engine Coolant
Temperature (ECT) Sensor Inspection: For Petrol
Engine Model in Section 1C".
Is it in good condition?

DTC P0117: Engine Coolant Temperature Circuit Low

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 less than 0.2 V for 0.5 sec
continuously
(High engine coolant temperature (low voltage / low resistance))
(1 driving cycle 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) 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 130 C (266 F) indicated?
Engine General Information and Diagnosis: For Petrol Engine Model 1A-100
Action
Ω
?
Action
Yes
"GRY/GRN" wire is high
resistance circuit.
Poor "C37-57"
connection.
Substitute a known-
good ECM and recheck.
Trouble area
• ECT sensor circuit
• ECT sensor
• ECM
Yes
Go to Step 2.
Go to Step 3.
No
Faulty ECM ground
circuit.
If circuit is OK,
substitute a known-
good ECM and recheck.
Replace ECT sensor.
S6JB0A1114028
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".