Auto Active Test
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation:
- Front wiper (LO, HI)
- Front fog lamps
- Parking lamps
- Side marker lamps
- Tail lamps
- License plate lamps
- Daytime running lamps
- Headlamps (LO, HI)
- A/C compressor (magnet clutch)
- Cooling fans
Operation Procedure
- If auto active test mode cannot be actuated, check door switch system. Refer to Component Function Check .
- When auto active test mode has to be canceled halfway through test, turn ignition switch OFF.
- Close the hood and lift the wiper arms from the windshield (to prevent windshield damage due to wiper operation).
- Turn ignition switch OFF.
- Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF.
- Turn the ignition switch ON within 10 seconds. After that, the horn sounds once and the auto active test starts.
- After a series of the following operations is repeated 3 times, auto active test is completed.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following operation sequence is repeated 3 times.
|
Operation sequence |
Inspection Location |
Operation |
|
1 |
Front wiper |
LO for 3 seconds → HI for 3 seconds |
|
2 |
|
10 seconds |
|
3 |
Daytime running lamps |
10 seconds |
|
4 |
Headlamps |
LO → HI 5 times |
|
5 |
A/C compressor |
ON → OFF 5 times |
|
6 |
Cooling fans |
LO for 5 seconds → MID for 3 seconds → HI for 2 seconds |
Concept of auto active test
- IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communication. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto active test starts successfully.
- The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
|
Symptom |
Inspection contents |
Possible cause |
|
|
Any of the following components do not operate:
|
Perform auto active test. Does the applicable system operate? |
YES |
BCM signal input circuit |
|
NO |
|
||
|
A/C compressor does not operate. |
Perform auto active test. Does the magnet clutch operate? |
YES |
|
|
NO |
|
||
|
Cooling fans do not operate. |
Perform auto active test. Do the cooling fans operate? |
YES |
|
|
NO |
|
||