Nissan Sentra B18 (2020-2025) Service Manual: P1568 Icc Function

Nissan Sentra B18 (2020-2025) Service Manual / Engine / Work Procedure (After Replacing Electric Throttle Control Actuator) / Dtc/circuit Diagnosis / P1568 Icc Function

Dtc Description

DTC Description

DTC DETECTION LOGIC

ECM detects a difference between signals from ADAS control unit is out of specified range.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1568

ICC COMMAND VALUE

(ICC function)

Command value error from ADAS control unit.

POSSIBLE CAUSE

Harness or connectors (The CAN communication line is open or shorted.)
ADAS control unit
ECM

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

CHECK DTC PRIORITY

If DTC P1568 is displayed with DTC UXXXX, P0605 or P0607, first perform the confirmation procedure for DTC UXXXX, P0605 or P0607.

Is applicable DTC detected?
YES >>
Perform diagnosis of applicable.
- DTC UXXXX: Refer to DTC Index.
- DTC P0605: Refer to DTC Description.
- DTC P0607: Refer to DTC Description.
NO >>
GO TO 2.
PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:

Step 4 may be conducted with the drive wheels lifted in the shop or by driving the Nissan Sentra vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

>>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Press MAIN switch on ICC steering switch.
3. Drive the Nissan Sentra vehicle at more than 40 km/h (25 MPH).
  
  CAUTION:
  
  Always drive vehicle at a safe speed.
4. Press SET- switch.
5. Check DTC.
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

DTC Diagnosis Procedure

REPLACE ADAS CONTROL UNIT
1. Replace ADAS control unit.
2. Refer to Work Procedure.
3. Check DTC of ADAS control unit. Refer to CONSULT Function (ICC/ADAS).
>>
INSPECTION END

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