DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0037 | HO2 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 | HO2 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.) |
|
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-178, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK HO2S2 POWER SUPPLY CIRCUIT
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-179, "Component Inspection (HO2S Heater)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace heated oxygen sensor 2. Refer to EX-5, "Exploded View".
Component Inspection (HO2S Heater)
1.CHECK HEATED OXYGEN SENSOR 2 HEATER
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace heated oxygen sensor 2. Refer to EX-5, "Exploded View".
Ecu diagnosis information
Bcm
Reference value
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTC ...
Front door glass
Removal and Installation
REMOVAL
WARNING:
Before servicing, turn ignition switch OFF, disconnect both
battery terminals and wait at least three
minutes.
Do not use air tools or electric tools for servicing.
NOTE:
LH front door panel shown; RH side similar
Disconnect the battery ...
Oil filter
Removal and Installation
REMOVAL
Remove engine under cover. Refer to EXT-16, "Exploded View".
Drain engine oil. Refer to LU-8, "Draining".
Remove the oil filter using Tool (A) as shown.
: Front
Tool number : KV10115801 (J-38956)
WARNING:
Be careful not to burn you ...