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DTC P0117:00 [PCM (SKYACTIV-G)]

DTC P0117:00 [PCM (SKYACTIV-G)]

SM2334508


id0102t4701600



Outline

System malfunction location

ECT sensor No.1 circuit low input

Detection condition
• The PCM monitors the ECT sensor No.1 signal. If the PCM detects that the ECT sensor No.1 voltage at the PCM terminal 1AH is below 0.23 V for 5 s, the PCM determines that the ECT sensor No.1 circuit has a malfunction.
Fail-safe
• Fixes the water temperature for the engine control at 40 °C {104 °F}, and for the idle air control at 80 °C {176 °F}.
• Operates the cooling fan (high speed rotation).
• Inhibits the fuel cut control during shift change.
Possible cause
• Engine overheating (cooling system malfunction)
• ECT sensor No.1 connector or terminals malfunction
• ECT sensor No.1 malfunction
• Short to ground in ECT sensor No.1 signal circuit
• PCM connector or terminals malfunction
• Short circuit in ECT sensor No.1 signal circuit and ground circuit
• PCM malfunction



Diagnostic Procedure

Step

Inspection

Results

Action

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
• Record the freeze frame data/snapshot data.

Note
• Recording can be facilitated using the screen capture function of the PC.
Go to the next step.
2
VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
• Verify related Service Bulletins, on-line repair information, or Service Information availability.
• Is any related Information available?
Yes
Perform repair or diagnosis according to the available information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY ENGINE CONDITION
• Verify the engine condition.
• Is the engine overheating?
Yes
Perform the symptom troubleshooting “COOLING SYSTEM CONCERNS-OVERHEATING”.
No
Go to the next step.
4
INSPECT ECT SENSOR No.1 CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
5
DETERMINE IF ECT SENSOR No.1 OR WIRING HARNESS MALFUNCTION
• Reconnect all disconnected connectors.
• Access the ECT PID using the M-MDS. (See PID/DATA MONITOR INSPECTION.)
• Verify the ECT PID value when disconnecting the ECT sensor No.1 connector.
• Does the ECT PID value change?
Yes
Replace the ECT sensor No.1 and perform the repair completion verification.
No
Go to the next step.
6
INSPECT ECT SENSOR No.1 SIGNAL CIRCUIT FOR SHORT TO GROUND
• Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
7
INSPECT PCM CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
8
INSPECT ECT SENSOR No.1 SIGNAL CIRCUIT AND GROUND CIRCUIT FOR SHORT CIRCUIT
• Inspect the applicable circuits for a short circuit. (See CIRCUIT INSPECTION.)
• Is the circuit normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
― Perform the KOEO or KOER self test. (See DTC INSPECTION.)
• Perform the DTC inspection for the PCM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.