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)
- Parking lamps
- License plate lamps
- Side marker lamps
- Tail lamps
- Headlamps (LO, HI)
- A/C compressor (magnet clutch)
- Cooling fan (cooling fan control module)

Operation Procedure

1.Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper operation)
NOTE：
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.

2.Turn the ignition switch OFF.

3.Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF.
■ CAUTION ■
Close passenger door.

4.Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.

5.After a series of the following operations is repeated 3 times, auto active test is completed.

NOTE：
When auto active test mode has to be cancelled halfway through test, turn the ignition switch OFF.
■ CAUTION ■

- 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 5 steps are repeated 3 times.

Operation sequence | Inspection location | Operation
1 | Front wiper | LO for 5 seconds → HI for 5 seconds
2 |

- Parking lamps
- License plate lamps
- Side marker lamps
- Tail lamps

10 seconds
3 | Headlamps | LO ⇔ HI 5 times
4 | A/C compressor (magnet clutch) | ON ⇔ OFF 5 times
5* | Cooling fan | MID 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

- Parking lamps
- License plate lamps
- Side marker lamps
- Tail lamps
- Headlamp (HI, LO)
- Front wiper (HI, LO)

Perform auto active test.
Does the applicable system operate?
YES
BCM signal input circuit
NO |

- Lamp or motor
- Lamp or motor ground circuit
- Harness or connector between IPDM E/R and applicable system
- IPDM E/R

A/C compressor does not operate | Perform auto active test. Does the magnet clutch operate? | YES |

- A/C amp. signal input circuit
- CAN communication signal between A/C amp. and ECM
- CAN communication signal between ECM and IPDM E/R

NO |

- Magnet clutch
- Harness or connector between IPDM E/R and magnet clutch
- IPDM E/R

Cooling fan does not operate | Perform auto active test. Does the cooling fan operate? | YES |

- ECM signal input circuit
- CAN communication signal between ECM and IPDM E/R

NO |

- Cooling fan
- Harness or connector between cooling fan and cooling fan control module
- Cooling fan control module
- Harness or connector between IPDM E/R and cooling fan control module
- Cooling fan relay
- Harness or connector between IPDM E/R and cooling fan relay
- IPDM E/R