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
B18 Owner's 2020-2025 Sentra owner information B18 Service 2020-2025 Sentra Workshop manual B17 Owner's 2013-2019 Sentra owner documentation B17 Service 2013-2019 Sentra service information

Nissan Sentra B18 (2020-2025) Service Manual: P2135 Tp Sensor

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P2135

TP SENSOR-B1

(Throttle/Pedal position sensor/switch “A” / “B” voltage correlation)

Diagnosis condition

Engine running at idle

Signal (terminal)

TP sensor 1 signal and TP sensor 2 signal

Threshold

Rationally incorrect voltage is sent to ECM compared with the signals from TP sensor 1 and TP sensor 2

Diagnosis delay time

—

POSSIBLE CAUSE

  • Harness or connector (TP sensor 1 or 2 circuit is open or shorted.)

  • Electric throttle control actuator (TP sensor 1 or 2)

FAIL-SAFE

Engine Control System

Engine operating condition in fail-safe mode

Fail safe mode

Nissan Sentra Vehicle behavior

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).

Others

The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10 degrees.

The ECM regulates the opening speed of the throttle valve to be slower than the normal condition. So, the acceleration will be poor.

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. CHECK DTC PRIORITY

    If DTC P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

    Is applicable DTC detected?

    YES >>

    Perform diagnosis of applicable. Refer to DTC Description.

    NO >>

    GO TO 2.

  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:

    Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

    >>

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE

    1. Start the engine and let it idle for 1 second.

    2. Check DTC.

    Is DTC detected?

    YES >>

    Proceed 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

  1. CHECK DTC PRIORITY

    If DTC P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

    Is applicable DTC detected?

    YES >>

    Perform diagnosis of applicable. Refer to DTC Description.

    NO >>

    GO TO 2.

  2. CHECK THROTTLE POSITION SENSOR POWER SUPPLY

    1. Turn ignition switch OFF.

    2. Disconnect electric throttle control actuator harness connector.

    3. Turn ignition switch ON.

    4. Check the voltage between electric throttle control actuator harness connector and ground.

      +

      −

      Voltage

      (Approx.)

      Electric throttle control actuator

      Connector

      Terminal

      F7

      3

      Ground

      5 V

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    GO TO 3.

  3. CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.

    2. Disconnect ECM harness connector.

    3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F7

      3

      F25

      95

      Existed

    4. Also check harness for short to ground.

    Is the inspection result normal?

    YES >>

    Perform the trouble diagnosis for power supply circuit.

    NO >>

    Repair or replace malfunctioning part.

  4. CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT

    1. Turn ignition switch OFF.

    2. Disconnect ECM harness connector.

    3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F7

      2

      F25

      90

      Existed

    4. Also check harness for short to power.

    Is the inspection result normal?

    YES >>

    GO TO 5.

    NO >>

    Repair or replace malfunctioning part.

  5. CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT

    1. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F7

      1

      F25

      85

      Existed

      4

      89

    2. Also check harness for short to ground and to power.

    Is the inspection result normal?

    YES >>

    GO TO 6.

    NO >>

    Repair or replace malfunctioning part.

  6. CHECK THROTTLE POSITION SENSOR

    Check the throttle position sensor. Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Replace electric throttle control actuator. Refer to Removal and Installation.

    P2122 App Sensor
    Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P2122 APP SEN 1/CIRC (Throttle/Pedal position se...
    P219a Air Fuel Ratio
    Dtc Description DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P219A 00 AIR FUEL RATIO IMBALANCE B1 (Bank 1 air...

    Other materials:

    Front Auxiliary Input Jacks
    Diagnosis Procedure Diagnosis Procedure AUX JACK CHECK AUX JACK HARNESS CONTINUITY Ignition switch OFF. Disconnect AV control unit connector and front auxiliary input j ...

    B20be-15 Battery Temperature Sensor
    Dtc Description DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition ...

    Front Suspension. Preparation. Preparation
    Preparation Special Service Tools Special Service Tools The actual shape of the tools may differ from those illustrated here. Tool number (TechMate No.) Tool name Description ...