DTC DETECTION LOGIC

DTC | Items (CONSULT-III screen terms) | Diagnostic item is detected when... | Possible causes
B2578 | IN CAR SENSOR SHORT | The in-vehicle sensor recognition temperature is too high. |

- In-vehicle sensor
- A/C auto amp.
- Harness and connector
  (Short in the in-vehicle sensor circuit)

B2579 | IN CAR SENSOR OPEN | The in-vehicle sensor recognition temperature is too low. |

- In-vehicle sensor
- A/C auto amp.
- Harness and connector
  (Open in the in-vehicle sensor circuit)

DTC CONFIRMATION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III

1. Perform the “SELF-DIAGNOSIS”.
2. Check if any DTC is detected in the self-diagnostic results.

NOTE：
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to DTC Logic or DTC Logic.
Is DTC “B2578” or “B2579” displayed?
YES>>Perform the diagnosis for the in-vehicle sensor. Refer to Diagnosis Procedure.
NO>>INSPECTION END