Nissan Rogue (T33) 2021-Present Service Manual: U1327 Mac Key
DTC Description
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| U1327 | 52 |
MAC Key update (MAC Key update) |
Diagnosis condition | — |
| Signal (terminal) | — | |||
| Threshold | MAC key writing is incomplete. | |||
| Diagnosis delay time | — | |||
| 54 | Diagnosis condition | — | ||
| Signal (terminal) | — | |||
| Threshold | MAC key is not written after ECM replacement. | |||
| Diagnosis delay time | — | |||
POSSIBLE CAUSE
U1327–52
-
Network communication error between CONSULT and ECM
-
ECM used in other vehicles is installed in the Nissan Ariya vehicle
-
ECM
U1327–54
-
Writing of MAC key has not been executed
-
ECM
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
U1327–52
CHECK DTC PRIORITY
If DTC U1327-52 is displayed with DTC U1327-54, first perform the trouble diagnosis for DTC U1327-54
Is DTC U1327-54 detected?
YES>>Proceed to DTC U1327-54 DTC Description.
NO>>GO TO 2
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
-
Ignition switch ON.
-
Perform “MAC key writing”. Refer to Description.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-52 detected as the current malfunction?
YES>>Refer to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
U1327–54
CHECK DTC PRIORITY
With CONSULT
-
Ignition switch ON.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-54 detected as the current malfunction?
YES>>Refer to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
Diagnosis Procedure
U1327–52
CHECK DTC PRIORITY
If DTC U1327-52 is displayed with DTC U1327-54, first perform the trouble diagnosis for DTC U1327-54.
Is DTC U1327 detected?
YES>>Proceed to DTC Description.
NO>>GO TO 2
PERFORM MAC KEY WRITING
With CONSULT
-
Perform “MAC key writing”. Refer to Description.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-52 detected?
YES>>GO TO 3
NO>>INSPECTION END
REPLACE ECM
Replace ECM. Refer to ECM : Removal & Installation.
>>
INSPECTION END
U1327–54
PERFORM MAC KEY WRITING
With CONSULT
-
Perform “MAC key writing”. Refer to Description.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-54 detected as the current malfunction?
YES>>GO TO 2.
NO>>INSPECTION END
PERFORM MAC KEY WRITING (SECOND TIMES)
With CONSULT
-
Restart CONSULT.
-
Perform “MAC key writing”. Refer to Description.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-54 detected as the current malfunction?
YES>>GO TO 3.
NO>>INSPECTION END
PERFORM MAC KEY WRITING (THIRD TIMES)
With CONSULT
-
Restart CONSULT.
-
Perform “MAC key writing”. Refer to Description.
-
Perform “MAC Diagnosis” of “ENGINE” using CONSULT.
Is DTC U1327-54 detected as the current malfunction?
YES>>Replace ECM. Refer to ECM : Removal & Installation.
NO>>INSPECTION END
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Information Display (combination Meter)
Door Open Warning
DESIGN/PURPOSEInformation display warns the driver that each door is open or is not fully closed. Symbol Message
–
SYNCHRONIZATION WITH MASTER WARNING LAMPSynchronization is applied.Refer to Master Warning Lamp.SYSTEM DIAGRAMSIGNAL PATH
BCM transmits door switch ...
Dtc/circuit Diagnosis. Wiper Deicer
Component Function Check
CHECK WIPER DEICER
CONSULT
Ignition switch ON.
Select "Front window defogger (passenger side)" and "Front window defogger (driver side)" in "Active test" mode of "BCM".
Select “On”.
Check that the front window heating wire is getting warmer.
Is ...
Dtc/circuit Diagnosis. Parking Brake Switch
Component Inspection
CHECK PARKING BRAKE SWITCH
Disconnect the 12V battery negative terminal.
Disconnect the parking brake switch harness connector.
Check the continuity when parking brake switch is operated.
Parking brake switch Continuity
Condition Terminals
When parking ...