DTC Diagnosis Procedure
- CHECK AIR FUEL RATIO SENSOR 1 POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect air fuel ratio (A/F) sensor 1 harness connector.
- Turn ignition switch ON.
- Check the voltage between A/F sensor 1 harness connector and ground.
DTC
A/F sensor 1
Ground
Voltage
Bank
Connector
Terminal
P0130
1
F44
1
Ground
Battery voltage
P0150
2
F60
1
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK AIR FUEL RATIO SENSOR 1 POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect IPDM E/R harness connector.
- Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.
DTC
A/F sensor 1
IPDM E/R
Continuity
Bank
Connector
Terminal
Connector
Terminal
P0130
1
F44
1
E121
4
Existed
P0150
2
F60
1
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
Perform trouble diagnosis for power supply circuit.
NO
Repair or replace malfunctioning part.
- CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
DTC
A/F sensor 1
ECM
Continuity
Bank
Connector
Terminal
Connector
Terminal
P0130
1
F44
4
F79
79
Existed
3
74
P0150
2
F60
4
F79
69
3
70
- Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector and ground.
DTC
A/F sensor 1
Ground
Continuity
Bank
Connector
Terminal
P0130
1
F44
4
Ground
Not Existed
3
P0150
2
F60
4
3
DTC
ECM
Ground
Continuity
Bank
Connector
Terminal
P0130
1
F79
74
Ground
Not Existed
79
P0150
2
F79
69
70
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace malfunctioning part.
- REPLACE A/F SENSOR 1
Replace malfunctioning A/F sensor 1. Refer to Removal and Installation .
CAUTION:- Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
- Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).
INSPECTION END