DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0037 | HO2S2 HTR (B1) (HO2S heater control circuit low bank 1 sensor 2) | The current amperage in the heated oxygen sensor 2 heater circuit is
out
of the normal range.
(An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
P0038 | HO2S2 HTR (B1) (HO2S heater control circuit high bank 1 sensor 2) | The current amperage in the heated oxygen sensor 2 heater circuit is
out
of the normal range.
(An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
POSSIBLE CAUSE
DTC P0037
TC P0038
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected? YES >> Proceed to EC-188, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK HO2S2 POWER SUPPLY CIR
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK HO2S2 OUTPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK HEATED OXYGEN SENSOR 2 HEATER
Check the heated oxygen sensor 2 heater. Refer to EC-189, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to EX-5, "Exploded View".
CAUTION:
>> INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK HEATED OXYGEN SENSOR 2 HEATER
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to EX-5, "Exploded View".
CAUTION:
>> INSPECTION END
Power switch illumination circuit
Description
Provides the power supply and the ground to control the power switch
illumination.
Component Function Check
1.CHECK POWER SWITCH ILLUMINATION OPERATION
CONSULT ACTIVE TEST
Turn the power switch ON.
Select “ENGINE SW ILLUMI” of “BCM” active test item.
&n ...
P0744 torque converter
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0744
TORQUE CONVERTER
(Torque converter clutch circuit intermittent)
When all of the following conditions are satisfied and this state is
maintain ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...