DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0031 | A/F SEN1 HTR (B1) [Air fuel ratio (A/F) sensor 1 heater (bank 1)control circuit low] | The current amperage in the A/F sensor 1 heater circuit is out of
the normal
range.
(An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater.) |
P0032 | A/F SEN1 HTR (B1) [Air fuel ratio (A/F) sensor 1 heater (bank 1)control circuit high] | The current amperage in the A/F sensor 1 heater circuit is out of
the normal
range.
(An excessively high voltage signal is sent to ECM through the A/F sensor 1 heater.) |
POSSIBLE CAUSE
DTC P0031
DTC P0032
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 between 11 V at idle. >> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-185, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.CHECK A/F SENSOR 1 HEATER Check the A/F sensor 1 heater. Refer to EC-186, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to EM-29, "Exploded View".
CAUTION:
>> INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1. Refer to EM-29, "Exploded View".
CAUTION:
>> INSPECTION END
Diagnosis system (BCM) (with intelligent key system)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
Direct Diagnostic Mode
Description
Ecu Identification
The BCM part number is displayed.
Self Diagnostic ...
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WARNING
Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dangerous.
It can cause unconsciousness or
death.
If you suspect that exhaust fumes are
entering the vehicle, drive with all windows
fully ...
CD care and cleaning
Handle a CD by its edges. Do not bend the
disc. Never touch the surface of the disc.
Always place the discs in the storage case
when they are not being used.
To clean a disc, wipe the surface from the
center to the outer edge using a clean, soft
cloth. Do not wipe the ...