Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2042-4a Electric Shift Authentication Fail
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detecting condition | |
|---|---|---|---|
| B2042–4A |
Electric shift authentication fail (Electric shift authentication fail) |
Diagnosis condition | When ignition switch is turned from OFF to ON |
| Signal (terminal) | CAN communication signal | ||
| Threshold | When Intelligent Key unit cannot detect CAN communication with electric shift control module | ||
| Diagnosis delay time | 1 second or less | ||
POSSIBLE CAUSE
-
Harness or connectors
(The CAN communication line is open or shorted)
-
Electric shift control module
FAIL-SAFE
Prohibit shifting the shift selector from P position
CONFIRMATION PROCEDURE
DTC CONFIRMATION
CONSULT
-
Ignition switch ON.
-
Select “Self diagnosis result” mode of “INTELLIGENT KEY”.
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 DTC PRIORITY OF INTELLIGENT KEY UNIT
CONSULT
-
Select “Self diagnosis result” mode of “INTELLIGENT KEY”.
-
If DTC B2042–4A is displayed with two or more DTCs are detected, refer to DTC inspection priority chart, and determine trouble diagnosis.
Is applicable DTC detected?
YES>>Perform the trouble diagnosis related to the detected DTC. Refer to DTC Index.
NO>>GO TO 2.
CHECK DTC PRIORITY OF ELECTRIC SHIFT CONTROL MODULE
CONSULT
Select “Self diagnosis result” mode of “SHIFT”.
Is the DTC detected?
YES>>Perform the trouble diagnosis related to the detected DTC. Refer to DTC Index.
NO>>Replace electric shift control module. Refer to Removal and Installation.
Other materials:
Removal and Installation. Electrically-Driven Intelligent Brake Unit
Exploded View
Reservoir cap
Oil strainer
Electrically-driven intelligent brake unit
Clevis
Gasket
: N·m (kg-m, ft-lb)
: Always replace after every disassembly.
Removal & Installation
REMOVALCAUTION:
While electrically-driven ...
Preparation
Commercial Service Tool
Tool name Description
Power tool
Loosening bolts and nuts
Handy vacuum pump
Air tight
Inspection of check valve
Brake caliper wrench
Return the piston
Pick tool
Removing piston seal and piston boot
...
B20a2-87 Headlamp (rh) Lin Communication
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen items
(Trouble diagnosis content) DTC detection condition
B20A2–87
Headlamp (RH) LIN communication
[Headlamp (right hand) local interconnect network communication]
[MISSING MESSAGE]
Diagnosis condition
Ignition switch ...
