1.CHECK DTC PRIORITY
If DTC P2123 is displayed with DTC P06B0, first perform the trouble diagnosis for DTC P06B0.Is applicable DTC detected?
.
2.CHECK APP SENSOR 1 POWER SUPPLY
3.CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between APP sensor harness connector and ECM harness connector.
+ | − | Continuity |
APP sensor | ECM |
Connector | Terminal | Connector | Terminal |
E25 | 3 | E16 | 154 | 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.
4.CHECK APP SENSOR 1 GROUND CIRCUIT
5.CHECK APP SENSOR INPUT SIGNAL CIRCUIT