db10: Service Code 54: Attempt to Generate Code 64
| Steps | _Key OFF, wait 10 seconds
_Disconnect vehicle harness from ACT sensor. Inspect for damaged pins, corrosion, loose wires, etc. Service as necessary _Insert jumper wire at the ACT vehicle harness connector between ACT SIGNAL and SIGNAL RETURN _Run Key ON, Engine OFF Self-Test |
| Result | Is Code 64 present? |
| Direction | YES
Replace ACT sensor. Remove jumper wire. Reconnect ACT sensor. Rerun Quick Test. NO Remove jumper wire. GO to Continue |
| Component | Air Charge Temperature Sensor |
| Description | The ACT provides the EEC with mixture (air and fuel) temperature information. The ACT is used both as a density corrector to airflow calculation and to proportion the cold enrichment fuel flow. |
| Location | Threaded into the lower intake manifold. |
| Wire Colors | Black with White stripe
Pink with Black stripe |
| Image |  |