DTC DETECTION LOGIC
DTC No. | Trouble diagnosis name (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0117 | Engine coolant temperature sensor circuit low input | An excessively low voltage from the sensor is sent to ECM |
|
P0118 | Engine coolant temperature sensor circuit high input | An excessively low voltage from the sensor is sent to ECM |
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK GROUND CONNECTION
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ECT SENSOR POWER SUPPLY CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to GI, "Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace engine coolant temperature sensor. Refer to CO, "Exploded View".
5.CHECK INTERMITTENT INCIDENT
Refer to GI, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace engine coolant temperature sensor. Refer to CO, "Exploded View".
Removal and installation
ECM
Exploded View
1. ECM bracket 2. ECM
: Vehicle front
Removal and Installation
CAUTION: Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to
EC-122, "Work Procedure".
REMOVAL
Remove battery. Refer to PG, "Removal and Installation".
Remove IPDM E/R. Re ...
P0720 Output speed sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0720
Output Speed Sensor Circuit
Under the following diagnosis
conditions, the output speed
sensor value is less than 100
rpm continuously for 5 seconds
or ...