Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION
   
   
   1. Perform initialization setting of automatic back door position information.

      Refer to WORK PROCEDURE .

   2. Erase DTC, and then repeat "PERFORM DTC CONFIRMATION PROCEDURE".

   Is DTC detected?

   YES 

   GO TO STEP 2  .

   NO 

   Inspection End.

2. CHECK INSTALLATION OF BACK DOOR ASSEMBLY
   
   
   1. Check that back door assembly is installed normally.

      Refer to ADJUSTMENT .

   2. Check back door assembly mechanism deformation, looseness, rattle, interference with other parts, and pinched foreign materials.

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair or replace the malfunctioning parts.

3. CHECK ENCODER SIGNAL
   
   
   1. Select "AUTOMATIC BACK DOOR CONTROL MODULE" using CONSULT.
   2. Select "SPINDLE LH ENCODER A" and "SPINDLE LH ENCODER B" in "DATA MONITOR" mode.
   3. Check that the function operates normally according to the following conditions.

      Monitor item	Condition		Status
      SPINDLE LH ENCODER A	Back door	Moving (auto or manual)	HI ==> LO
      		When stopped	HI or LO
      SPINDLE LH ENCODER B		Moving (auto or manual)	HI ==> LO
      		When stopped	HI or LO

   Is the inspection result normal?

   YES 

   Replace automatic back door control module. Refer to REMOVAL AND INSTALLATION .

   NO 

   GO TO STEP 4  .

4. CHECK ENCODER POWER SUPPLY
   
   
   1. Turn ignition switch OFF.
   2. Disconnect spindle unit LH connector.
   3. Turn ignition switch ON.
   4. Check voltage between spindle unit LH harness connector and ground.

      (+)		(-)	Voltage (Approx.)
      Spindle unit LH
      Connector	Terminal
      B70	8	Ground	Battery voltage

   Is the inspection result normal?

   YES 

   GO TO STEP 6  .

   NO 

   GO TO STEP 5  .

5. CHECK ENCODER POWER SUPPLY CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect automatic back door control module connector.
   3. Check continuity between automatic back door control module harness connector and spindle unit LH harness connector.

      Automatic back door control module		Spindle unit LH		Continuity
      Connector	Terminal	Connector	Terminal
      B55	19	B70	8	Yes

   4. Check continuity between automatic back door control module harness connector and ground.

      Automatic back door control module		Ground	Continuity
      Connector	Terminal
      B55	19		No

   Is the inspection result normal?

   YES 

   Replace automatic back door control module. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.

6. CHECK ENCODER SIGNAL CIRCUITS
   
   
   1. Turn ignition switch OFF.
   2. Disconnect automatic back door control module connector.
   3. Check continuity between automatic back door control module harness connector and spindle unit LH harness connector.

      Automatic back door control module		Spindle unit LH		Continuity
      Connector	Terminal	Connector	Terminal
      B55	6	B70	3	Yes
      	7		10

   4. Check continuity between automatic back door control module harness connector and ground.

      Automatic back door control module		Ground	Continuity
      Connector	Terminal
      B55	6		No
      	7

   Is the inspection result normal?

   YES 

   GO TO STEP 7  .

   NO 

   Repair or replace harness.

7. CHECK ENCODER GROUND CIRCUIT
   
   
   1. Connect automatic back door control module and spindle unit LH connector.
   2. Check continuity between automatic back door control module harness connector and ground.

      Automatic back door control module		Ground	Voltage (Approx.)
      Connector	Terminal
      B55	21		0 V

   Is the inspection result normal?

   YES 

   Replace spindle unit LH. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness.