Nissan Rogue (T33) 2021-Present Service Manual: P1c91-14 Sub Starter & Generator

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Charging System / With Idle Start/stop :: Dtc/circuit Diagnosis / P1c91-14 Sub Starter & Generator

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition
P1C91-14

Sub starter & generator

(Sub starter & generator) 		Diagnosis condition Engine running at idle
Signal (terminal) Battery voltage
Threshold Less than 5.5 V, or more than 17.5 V
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connectors (“B” terminal circuit is open or shorted.)

  • Harness or connectors (Ground circuit is open or shorted.)

  • Fusible link

  • Sub starter & generator

FAIL-SAFE

Stop the operation of sub starter & generator

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine and let it idle and wait for 1 second or more.

  2. Select “Self diagnosis result” mode of “Sub starter & generator”.

Is DTC detected?

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

CHECK “B” TERMINAL CONNECTION

  1. Ignition switch OFF.

  2. Check if “B” terminal is clean and tight.

Is the inspection result normal?

Yes>>

GO TO 2.

NO>>

Repair “B” terminal connection.

CHECK FUSIBLE LINK

  1. Ignition switch OFF.

  2. Check that the following fusible link is not blowing:

    Location Fusible link Capacity
    BATTERY TERMINAL WITH FUSIBLE LINK A 450A

Is the fusible lnk blown (open)?

YES>>

Replace the fusible link after repairing the applicable circuit.

NO>>

GO TO 3.

CHECK SUB STARTER & GENERATOR “B” TERMINAL VOLTAGE

  1. Disconnect “B” terminal of sub starter & generator.

  2. Check the voltage between the “B” terminal and ground.

    (+) (-)

    Voltage

    (Approx.)
    Sub starter & generator
    Connector Terminal
    F125 (without ProPILOT Assist 2.1) 7 Ground Battery voltage
    F129 (with ProPILOT Assist 2.1) 7 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK GROUND CIRCUIT

Check continuity between sub starter & generator harness connector and ground.

(+) (-) Continuity
Sub starter & generator
Connector Terminal
F126 5 Ground Yes

Is the inspection result normal?

YES>>

Replace sub starter & generator. Refer to Removal and Installation.

NO>>

Repair or replace harness.

    P1c90-55 Sub Starter & Generator
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition P1C90-55 Sub starter & generator (Sub starter & gene...
    P1c91-17 Sub Starter & Generator
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition P1C91-17 Sub starter & generator (Sub starter & gene...

    Other materials:

    Diagnosis System (adas Control Unit 2)
    Without Propilot Assist 2.1 Diagnosis Description APPLICATION ITEMSCONSULT performs the following functions via CAN communication using ADAS control unit 2. Diagnosis mode CGW Status Description Restricted Mode Diag Test Mode Open Mode Self Diagnostic Result Display Display Di ...

    U288c-88 Ethernet Circuit
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detected condition U288C-88 Ethernet circuit Diagnosis condition When ignition switch is ON. Signal (terminal) — Threshold Lost ethernet communication with combination meter and/or Head Up Display u ...

    Dtc/circuit Diagnosis. C1700-54 Control Unit
    DTC Description NOTE: The Signal Tech II Tool [– (NI-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS sensor IDs Display tire pressure reported by the TPMS sensor Read TPMS DTCs ...