P0037, P0038 HO2S2 HEATER
DTC Description INFOID:0000000010702894
DTC DETECTION LOGIC
POSSIBLE CAUSE
P0037
• Harness or connectors (The heated oxygen sensor 2 heater circuit is open or shorted.)
• Heated oxygen sensor 2 heater
P0038
• Harness or connectors (The heated oxygen sensor 2 heater circuit is shorted.)
• Heated oxygen sensor 2 heater
FAIL-SAFE
Not applicable
То-есть может быть обрыв, может коротыш. И далее процедура по подтверждению и поиску неисправности
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 11 to 16 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to ECM-167, "Diagnosis Procedure".
NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".
NO-2 >> Confirmation after repair: INSPECTION END
ОД это делали? То-есть погоняли двигатель? Или тупо прочитали ошибки, щелкнули разьемом, стерли ошибку и сказали "все в порядке?"