P0130
P0130, P0150 A/F SENSOR 1
DTC Logic
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 CONFIRMATION PROCEDURE
1. PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
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 FOR MALFUNCTION A
1.Start engine and warm it up to normal operating temperature.
2.Let engine idle for 2 minutes.
3.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO-1- With CONSULT: GO TO 3.
NO-2- With GST: GO TO 7.
3. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
1.Start engine and warm it up to normal operating temperature.
2.Select "A/F SEN1 (B1)" or "A/F SEN1 (B2)" in "DATA MONITOR" mode with CONSULT.
3.Check "A/F SEN1 (B1)" or "A/F SEN1 (B2)" indication.
Does the indication fluctuate around 2.2 V?
YES- GO TO 4.
NO- Proceed to "Diagnosis Procedure" .
4. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-I
1.Select "A/F SEN1 (B1) P1276" (for DTC P0130) or "A/F SEN1 (B2) P1286" (for DTC P0150) of "A/F
SEN1" in "DTC WORK SUPPORT" mode with CONSULT.
2.Touch "START".
3.When the following conditions are met, "TESTING" will be displayed on the CONSULT screen.
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 5.
NO- Check A/F sensor 1 function again. GO TO 3.
5. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-II
Release accelerator pedal fully.
NOTE:
Never apply brake when releasing the accelerator pedal.
Which does "TESTING" change to?
COMPLETED-GO TO 6.
OUT OF CONDITION-Retry DTC CONFIRMATION PROCEDURE. GO TO 4.
6. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-III
Touch "SELF-DIAG RESULT".
Which is displayed on CONSULT screen?
OK- INSPECTION END
NG- Proceed to "Diagnosis Procedure" .
7. PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B
Perform component function check. Refer to "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- Proceed to "Diagnosis Procedure" .
Component Function Check
1. PERFORM COMPONENT FUNCTION CHECK
With GST
1.Start engine and warm it up to normal operating temperature.
2.Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position.
3.Shift the selector lever to the D position, then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (31 MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Never apply brake when releasing the accelerator pedal.
4.Repeat steps 2 and 3 for 5 times.
5.Stop the vehicle and turn ignition switch OFF.
6.Wait at least 10 seconds and restart engine.
7.Repeat steps 2 and 3 for 5 times.
8.Stop the vehicle.
9.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY
1.Disconnect A/F sensor 1 harness connector.
2.Turn ignition switch ON.
3.Check the voltage between A/F sensor 1 harness connector and ground.
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
1.Turn ignition switch OFF.
2.Disconnect IPDM E/R harness connector.
3.Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.
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
1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
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 4.
NO- Repair open circuit, short to ground or short to power in harness or connectors.
4. CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to "Removal and Installation (LH)" Removal And Installation (LH) or "Removal and Installation (RH)" Removal And Installation (RH).
NO- Repair or replace error-detected parts.