S Nissan Sentra Manuals Library
Factory-style information for owners and repair work

Nissan Sentra techinfo

Find Nissan Sentra owner information, maintenance instructions, technical references, service procedures and useful repair pages in one clean online library.

Quick access Sentra Docs
OwnerUse, safety, controls ServiceRepair procedures PopularMost viewed pages LatestNew manual pages

Nissan Sentra B18 (2020-2025) Service Manual: P062b Ecm

Dtc Description

DTC Description

This DTC is detected when the ECM-integrated injector driver unit has a malfunction.

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P062B

ECM

(Internal control module fuel injector control performance)

Diagnosis condition

Engine running at idle

Signal (terminal)

—

Threshold

Injector driver unit is malfunctioning

Diagnosis delay time

—

POSSIBLE CAUSE

  • Harness or connectors (Fuel injector circuit is open or shorted.)

  • Battery power supply

  • ECM (Injector driver unit)

FAIL-SAFE

Engine Control System

Engine operating condition in fail-safe mode

Fail safe mode

Nissan Sentra Vehicle behavior

Traveling control mode

Accelerator angle variation control

ECM controls the accelerator pedal depression speed to make it slower than actual speed. This causes a drop in accelerating performance and encourages the driver to repair malfunction.

Note:

ECM does not control the accelerator pedal releasing speed.

Device fix mode

  • This mode fixes the electric IVT motor and the EVT control solenoid valve in the reference position.

  • The intake manifold runner control valve motor is turned OFF (intake manifold runner control valve opens).

Combustion control mode

Stratified charge combustion control at starting

No stratified charge combustion at starting (cold start).

Others

 Note:

Fail-safe mode may not start depending on malfunction type of ECM.

Idle Start/Stop System

When a DTC is detected, the start/stop indicator lamp blinks slowly and the idle start/stop system operation is prohibited.

When ECM detects error while operating the idle start/stop system, ECM restarts the engine.

Confirmation Procedure

Confirmation Procedure

  1. PRECONDITIONING

    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:

    Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

    >>

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Start the engine and keep the engine speed at idle for 30 seconds.

    2. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO >>

    INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK FUEL INJECTOR

    Check fuel injector. Refer to Component Function Check.

    Is inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Repair or replace error-detected parts.

  2. PERFORM DTC CONFIRMATION PROCEDURE

    1. Turn ignition switch ON.

    2. Erase DTC.

    3. Perform DTC confirmation procedure again. Refer to Confirmation Procedure.

    4. Check 1st trip DTC.

    Is the DTC P062B displayed again?

    YES >>

    Replace ECM. Refer to ECM : Removal & Installation.

    NO >>

    INSPECTION END

    P061b Ecm
    Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble ...

    P062d Ecm
    Dtc Description DTC Description This DTC is detected when the ECM-integrated injector driver unit has a malfunction. DTC DETECTION LOGIC ...

    Other materials:

    Bluetooth® Hands-Free Phone System without Navigation System (Type B) (if so equipped)
    WARNING Use a phone after stopping your vehicle in a safe location. If you have to use a phone while driving, exercise extreme caution at all times so full attention may be given to vehicle operation. If you are unable to devote full attention to vehicle operation ...

    Child safety rear door lock
    Child safety locks help prevent the rear doors from being opened accidentally, especially when small children are in the vehicle. The child safety lock levers are located on the edge of the rear doors. When the lever is in the unlock position 2 , the door can be opened from the outside ...

    Rear Parcel Shelf Finisher
    Exploded View Exploded View 1. Top tether strap anchor finisher 2. High-mounted stop lamp ...