Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2426-25 Spindle Sensor Lh
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| B2426-25 |
Spindle sensor LH (Spindle sensor left hand) |
Diagnosis condition | When automatic back door open/close function operate |
| Signal (terminal) | Encoder LH signal | ||
| Threshold | Automatic back door control unit cannot detect the encoder LH signal | ||
| Diagnosis delay time | Less than 40 pulse | ||
POSSIBLE CAUSE
-
Spindle unit LH
-
Automatic back door control unit
-
Harness or connector (encoder LH circuit is open or shorted)
FAIL-SAFE
Inhibit automatic back door system (only operate back door closure function)
DTC CONFIRMATION PROCEDURE
DTC CONFIRMATION
CONSULT
-
Ignition switch ON.
-
Operate automatic back door.
-
Select “Self diagnosis result” mode of “AUTOMATIC BACK DOOR”.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK ENCODER SIGNAL
CONSULT
-
Ignition switch ON.
-
Select “Spindle sensor LH” in “Data monitor” mode of "AUTOMATIC BACK DOOR".
-
Check that the function operates normally according to the following conditions.
Monitor item Condition Status Spindle sensor LH Back door Open The numeral value increases Close The numeral value decreases
Is the inspection result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>GO TO 2.
CHECK ENCODER INPUT SIGNAL
Check signal between automatic back door control unit harness connector and ground using oscilloscope.
| (+) | (–) | Condition |
Signal (Reference value) (Approx.) | ||
|---|---|---|---|---|---|
| Automatic back door control unit | |||||
| Connector | Terminal | ||||
| B55 | 29 | Ground | Back door | Moving (auto) |
|
| When stopped | 0 V or Battery voltage | ||||
| 30 | Moving (auto) |
|
|||
| When stopped | 0 V or Battery voltage | ||||
Is the inspection result normal?
YES>>Replace automatic back door control unit. Refer to Removal and Installation.
NO>>GO TO 3.
CHECK ENCODER CIRCUIT
-
Disconnect automatic back door control unit connector and spindle unit LH connector.
-
Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.
Automatic back door control unit Spindle unit LH Continuity Connector Terminal Connector Terminal B55 29 B95 5 Yes 30 3 -
Check continuity between automatic back door control unit harness connector and ground.
Automatic back door control unit — Continuity Connector Terminal B55 29 Ground No 30
Is the inspection result normal?
YES>>Replace spindle unit LH. Refer to Removal and Installation.
NO>>Repair or replace harness.
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