DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0112 | IAT SEN/CIRCUIT- B1 (Intake air temperature sensor 1 circuit low bank 1) | An excessively low voltage from the intake air temperature sensor is sent to ECM. |
|
P0113 | IAT SEN/CIRCUIT- B1 (Intake air temperature sensor 1 circuit high bank 1) | An excessively high voltage from the intake air temperature 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 1st trip DTC detected? YES >> Proceed to EC-194, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK INTAKE AIR TEMPERATURE SENSOR
Check the intake air temperature sensor. Refer to EC-195, "Component Inspection (IAT Sensor)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM-25, "Exploded View".
Component Inspection (IAT Sensor)
1.CHECK INTAKE AIR TEMPERATURE SENSOR
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace mass air flow sensor (with intake air temperature sensor). Refer to EM-25, "Exploded View".
B142A Ignition voltage
Description
DTC B142A IGNITION VOLTAGE
Ignition voltage is supplied to the air bag diagnosis sensor unit when the
ignition is in the ON position. The air
bag diagnosis sensor unit will monitor for low or high ignition voltage.
PART LOCATION
Refer to SRC-5, "Component Parts Location" ...
S terminal circuit
Description
The output voltage of the generator is controlled by the IC regulator at
terminal “S” detecting the input voltage
from battery.
The “S” terminal circuit detects the battery voltage to adjust the generator
output voltage with the IC voltage
regulator.
Diagn ...
Air conditioning cut control
AIR CONDITIONING CUT CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed*
Piston position
Air conditioner
cut control
IPDM E/R
↓Air ...