DTC DETECTION LOGIC
To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control.
DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
P0130 | Air fuel ratio (A/F) sensor 1 circuit | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2 V. |
|
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.
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 6.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
Does the indication fluctuate around 2.2 V?
YES >> GO TO 3.
NO >> Go to EC, "Diagnosis Procedure".
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION I
If "TESTING" is not displayed after 20 seconds, retry from step 2.
CAUTION: Always drive vehicle at a safe speed.
Is "TESTING" displayed on CONSULT screen?
YES >> GO TO 4.
NO >> Check A/F sensor 1 function again. GO TO 2.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION II
Release accelerator pedal fully.
NOTE: Never apply brake when releasing the accelerator pedal.
Which does "TESTING" change to?
COMPLETED>>GO TO 5.
OUT OF CONDITION>>Retry DTC CONFIRMATION PROCEDURE. GO TO 3.
5.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION III
Touch "SELFDIAG RESULT".
Which is displayed on CONSULT screen?
OK >> INSPECTION END
NG >> Go to EC, "Diagnosis Procedure".
6.PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION
Perform component function check. Refer to EC, "Component Function Check".
NOTE: Use component function check to check the overall function of the A/F sensor 1 circuit. During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC, "Diagnosis Procedure".
1.PERFORM COMPONENT FUNCTION CHECK
With GST
CAUTION: Always drive vehicle at a safe speed.
NOTE: Never apply brake when releasing the accelerator pedal.
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK GROUND CONNECTION
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
4. Check the continuity between A/F sensor 1 harness connector and ground or ECM harness connector and ground.
5. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK INTERMITTENT INCIDENT
Perform GI, "Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace.
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to EM, "Exploded View".
CAUTION:
>> INSPECTION END
Rear window defroster switch
To defrost the rear window glass, start the engine
and push the rear window defroster switch on.
The rear window defroster indicator light on the
switch comes on. Push the switch again to turn
the defroster off.
The rear window defroster automatically turns off
after approximately 15 m ...
U0101 can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an onvehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each con ...