DTC Description
DTC DETECTION LOGIC
To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately low.
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0131 | A/F SENSOR1 (B1) (O2 sensor circuit low voltage bank 1 sensor 1) | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 0 V. |
POSSIBLE CAUSE
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 10.5 V at idle.
>> GO TO 2.
2.CHECK A/F SENSOR FUNCTION
With CONSULT
With GST
Follow the procedure “With CONSULT” above.
Is the indication constantly approx. 0 V? YES >> Proceed to EC-231, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
CAUTION: Always drive vehicle at a safe speed.
ENG SPEED | 1,000 - 3,200 rpm |
VHCL SPEED SE | More than 40 km/h (25 mph) |
B/FUEL SCHDL | 1.5 - 9.0 msec |
Selector lever | Suitable position |
NOTE:
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected? YES >> Proceed to EC-231, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 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 A/F SENSOR 1 INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK INTERMITTENT INCIDENT
Perform GI-41, "Intermittent Incident".
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.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
Key interlock cable
Exploded View
Key cylinder
Clip
Key interlock cable
Shift selector assembly
Removal and Installation
REMOVAL
CAUTION:
Always apply the parking brake before performing removal and installation.
Move shift selector to the “N” position.
Remo ...
Wiper and washer system symptoms
Symptom Table
CAUTION:
Perform the self-diagnosis with CONSULT before performing the diagnosis by
symptom. Perform the
diagnosis by DTC if DTC is detected.
...
Parking brake system
Inspection and Adjustment
INSPECTION
Pedal Stroke
Operate the parking brake pedal with a force of 196 N (20.0 kg-f,
44.1 lb-f). Check that the pedal stroke is
within the specified number of notches. (Check it by listening to the clicks
of the ratchet.)
Number of notches : Refe ...