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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1015 (Power Control System) >> IPDM E/R >> Function Diagnosis >> Diagnosis System (IPDM E/R) >> Diagnosis Description >> Auto Active Test

Auto Active Test

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.

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 ignition switch OFF.
  3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF.
    CAUTION: Close front door RH.
  4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
  5. The oil pressure warning lamp starts blinking when the auto active test starts.
  6. 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 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 6 steps are repeated 3 times.

OPERATION SEQUENCE

Operation sequence Inspection Location Operation
1 Oil pressure warning lamp Blinks continuously during operation of auto active test
2 Front wiper LO for 5 seconds → HI for 5 seconds
3
  • Parking lamps
  • License plate lamps
  • Tail lamps
  • Front fog lamps (if equipped)
10 seconds
4 Headlamps LO → HI 5 times
5 A/C compressor (magnet clutch) ON <=> OFF 5 times
6(1) Cooling fans MID for 5 seconds <=> HI for 5 seconds
(1) 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

Fig 1: Auto Active Test - Communication Diagram
G04889500Courtesy of NISSAN MOTOR CO., U.S.A.

Diagnosis chart in auto active test mode

DIAGNOSIS CHART

Symptom Inspection contents Possible cause
Any of the following components do not operate
  • Parking lamps
  • License plate lamps
  • Tail lamps
  • Front fog lamps (if equipped)
  • Headlamp (HI, LO)
  • Front wiper
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
  • Combination meter signal input circuit
  • CAN communication signal between combination meter 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
Oil pressure warning lamp does not operate Perform auto active test. Does the oil pressure warning lamp blink? YES
  • Harness or connector between IPDM E/R and oil pressure switch
  • Oil pressure switch
  • IPDM E/R
NO
  • CAN communication signal between IPDM E/R and BCM
  • CAN communication signal between BCM and combination meter
  • Combination meter
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 relays
  • Cooling fan relays
  • Harness or connector between IPDM E/R and cooling fan relays
  • IPDM E/R