Nissan Murano: Door & Lock :: Dtc/circuit Diagnosis / B2401 Ign Open
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detecting condition | |
|---|---|---|---|
| B2401–86 |
IGN OPEN (Ignition open) |
Diagnosis condition | All times |
| Signal (terminal) | Ignition switch ON signal (CAN communication) | ||
| Threshold |
When all of the following conditions are satisfied
|
||
| Diagnosis delay time | – | ||
| B2401–87 |
IGN OPEN (Ignition open) |
Diagnosis condition | All times |
| Signal (terminal) | CAN communication | ||
| Threshold | When automatic back door control module can not communicate CAN communication signal | ||
| Diagnosis delay time | 2 seconds | ||
POSSIBLE CAUSE
-
CAN communication system
-
BCM
-
IPDM E/R
-
Automatic back door control module
FAIL-SAFE
Inhibit automatic back door system auto open/close function
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “AUTO BACK DOOR”.
Is DTC detected?
YES>>DTC “B2401-86”: Refer to DTC Diagnosis Procedure (B2401-86).
YES>>DTC “B2401-87”: Refer to DTC Diagnosis Procedure (B2401-87).
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
CHECK DTC OF BCM AND IPDM E/R
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “BCM” and “IPDM E/R”.
Is DTC detected?
YES>>Refer to DTC Index (BCM) or DTC Index (IPDM E/R).
NO>>GO TO 2.
CHECK IGN SW DATA MONITOR ITEM
CONSULT
-
Select “IGN SW” in “Data Monitor” mode of “AUTO BACK DOOR”.
-
Check that the function operates normally according to the following conditions.
| Monitor item | Condition | Status | |
|---|---|---|---|
| IGN SW | Ignition switch | ON position | ON |
| Other than ON position | OFF | ||
Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 4.
ERASE DTC
CONSULT
-
Select “Self Diagnostic Result” mode of “AUTO BACK DOOR”
-
Erase DTC, and then repeat “DTC CONFIRMATION PROCEDURE”. Refer to DTC Confirmation Procedure.
Is DTC “B2401-86” detected?
YES>>GO TO 4.
NO>>Check intermittent incident. Refer to Intermittent Incident.
REPLACE AUTOMATIC BACK DOOR CONTROL MODULE
CONSULT
-
Ignition switch OFF.
-
Replace automatic back door control module. Refer to Removal and Installation.
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “AUTO BACK DOOR”.
Is DTC “B2401-86” detected?
YES>>Check CAN communication trouble. Refer to Trouble Diagnosis Flow Chart.
NO>>Inspection End.
CHECK CAN COMMUNICATION TROUBLE DIAGNOSIS
Check CAN communication trouble diagnosis. Refer to Trouble Diagnosis Flow Chart.
>>
GO TO 2.
ERASE DTC
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “AUTO BACK DOOR”.
-
Erase DTC, and then repeat “DTC CONFIRMATION PROCEDURE”. Refer to DTC Confirmation Procedure.
Is DTC “B2401–87” detected?
YES>>Replace automatic back door control module. Refer to Removal and Installation.
NO>>Inspection End.
U1010 Control Unit(can)
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC detecting condition
U1010–49
CONTROL UNIT(CAN)
[Control unit (CAN)]
Diagnosis condition
All times
Signal (terminal)
–
Threshold
Automatic back door control module detected internal CAN communication circuit malfunction
Diagnosis delay time
2 seconds or more
POSSIBLE CAUSEAutomatic back door control moduleFAIL-SAFEInhibit automatic back door system all function
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Ignition switch OFF...
B2409 Half Latch Sw
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC detecting condition
B2409–71
HALF LATCH SW
(Half latch switch)
Diagnosis condition
All times
Signal (terminal)
Half latch switch signal (automatic back door control module connector terminal: 7)
Threshold
When all of the following conditions are satisfied
Back door: half latch or open
Half latch switch: ON → OFF
Diagnosis delay time
–
POSSIBLE CAUSE
Entry of foreign materials to back door lock assembly
Back door mechanism
Half latch switch
Harness or connectors (half latch switch circuit is open or shorted)
Automatic back door control module
FAIL-SAFEInhibit automatic back door system auto open/close function
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
Ignition switch ON...
Other information:
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Luggage hooks
When securing items using luggage hooks located on the back of the seat or side finisher do not apply a load over more than 6.5 lbs. (29 N) to a single hook.
The luggage hooks that are located on the floor should have loads less than 110 lbs. (490 N) to a single hook.
