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:
- Rear window defogger
- Front wipers (HI, LO)
- Front fog lamps (if equipped)
- Tail, side marker lamps, license and parking lamps
- Daytime running lamps (if equipped)
- Headlamps (HI, LO)
- A/C compressor (magnetic clutch)
Operation Procedure
- Close the hood and front door RH, and lift the wiper arms from the windshield (to prevent windshield damage due to wiper operation).NOTE: When auto active test is performed with hood opened, sprinkle water on windshield before hand.
- 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.
- If auto active test mode cannot be actuated, check door switch system. Refer to Component Function Check .
- Do not start the engine.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following 6 steps are repeated 3 times.
|
Operation sequence |
Inspection Location |
Operation |
|
1 |
Rear window defogger |
10 seconds |
|
2 |
Front wipers |
HI for 5 seconds → LO for 5 seconds |
|
3 |
Front fog lamps (if equipped), tail, side marker lamps, license and parking lamps and daytime running lamps (if equipped) |
10 seconds |
|
4 |
Headlamps |
LO for 10 seconds → HI on-off for 5 seconds |
|
5 |
A/C compressor (magnetic clutch) |
ON → OFF 5 times |
Concept of auto active test
|
*: If equipped |
- 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 |
|
|
Rear window defogger does not operate |
Perform auto active test. Does the rear window defogger (if equipped) operate? |
YES |
BCM signal input circuit |
|
NO |
CAN communication signal between BCM and IPDM E/R |
||
|
Any of the following components do not operate:
|
Perform auto active test. Does the applicable system operate? |
YES |
BCM signal input system |
|
NO |
|
||
|
A/C compressor does not operate |
Perform auto active test. Does the A/C compressor operate? |
YES |
|
|
NO |
|
||