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
- Cooling fans (LO, HI)
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 cancelled halfway through test, turn ignition switch OFF.
- Close the hood and lift the wiper arms from the windshield. (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 -> HI for 5 seconds |
*: Outputs duty ratio of 50% for 5 seconds -> duty ratio of 100% for 5 seconds on the cooling fan control module.
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 |
|
||
|
Cooling fans do not operate |
Perform AUTO ACTIVE TEST . Do the cooling fans operate? |
YES |
|
|
NO |
|
||