Concept of Auto Active Test
WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN communication line. Therefore, when auto active test mode is activated successfully, CAN communication between IPDM E/R and BCM is normal.
- If any of the systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed using auto active test.
Diagnosis chart in auto active test mode
DIAGNOSIS CHART IN AUTO ACTIVE TEST MODE
| Symptom | Inspection contents | Possible cause | |
|---|---|---|---|
| Any of front wipers, tail and parking lamps, front fog lamps, and headlamps (Hi, Lo) do not operate. | Perform Auto Active Test . Does system in question operate? | YES |
|
| NO |
|
||
| A/C compressor does not operate. | Perform Auto Active Test . Does magnetic clutch operate? | YES |
|
| NO |
|
||
| Cooling fan does not operate. | Perform Auto Active Test . Does cooling fan operate? | YES |
|
| NO |
|
||
| Oil pressure warning lamp does not operate. | Perform Auto Active Test . Does oil pressure warning lamp blink? | YES |
|
| NO |
|
||