1.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY
2.CHECK AIR FUEL RATIO (A/F) 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.
+ | − | Continuity |
A/F sensor 1 | IPDM E/R |
Connector | Terminal | Connector | Terminal |
F18 | 4 | F35 | 75 | Existed |
- Also check harness for short to ground.
Is the inspection result normal?
Perform the trouble diagnosis for power supply circuit. Repair or replace error-detected parts.
3.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT
4.CHECK INTERMITTENT INCIDENT
5.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1. Refer to Exploded View. : INSPECTION END