ECD SYSTEM, Diagnostic DTC:P1133

DTC Code DTC Name
P1133 Power Take-off Accel Position Sensor Circuit High

DESCRIPTION

The external accelerator position sensor is installed on the accelerator bellcrank assembly and is used to control the power take-off system. The sensor converts the position of the power take-off accelerator into a linear signal of approximately 0 to 5 V and sends the signal to the ECM.

P1133
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
-

The output of the power take-off accelerator position sensor is 4.8 V or higher for 1 second or more while the engine is running.

(1 trip detection logic)

  • Open or short circuit in accelerator bellcrank assembly (accelerator position sensor)

  • Accelerator bellcrank assembly (accelerator position sensor)

  • ECM

WIRING DIAGRAM

A01CIH9E02

INSPECTION PROCEDURE

Note

After replacing the ECM, the new ECM needs registration Click here and initialization Click here.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (ACCEL SENSOR VOLTAGE)


    1. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the tester on.

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Accel Sensor Voltage.

    6. Read the value displayed on the tester when the accelerator bellcrank assembly is fully open and fully closed.

      Result
      Accelerator Bellcrank Assembly State Reference
      Fully closed 0.6 to 1.0 V
      fully open 3.3 to 3.7 V

    NG

    CHECK ECM (VCP1 AND VPA1 VOLTAGE) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

  2. CHECK ECM (VCP1 AND VPA1 VOLTAGE)


    1. A01CIKSE06
      Text in Illustration
      *a

      Component with harness connected

      (ECM)

      Turn the ignition switch to ON.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E36-1 (VCP1) - E36-2 (EP1) Ignition switch ON 4.5 to 5.5 V
      E36-8 (VPA1) - E36-2 (EP1) Accelerator bellcrank assembly fully closed 0.7 to 1.0 V
      Accelerator bellcrank assembly fully open 3.3 to 3.9 V
      Accelerator bellcrank assembly fully closed → fully open Voltage changes without interruption

    NG

    INSPECT ACCELERATOR BELLCRANK ASSEMBLY Click here

    OK

    REPLACE ECM Click here

  3. INSPECT ACCELERATOR BELLCRANK ASSEMBLY


    1. Disconnect the accelerator bellcrank assembly connector.

    2. A01CIAIE11
      Text in Illustration
      *a

      Component without harness connected

      (Accelerator Bellcrank Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (VC) - 3 (E2) - 1.6 to 2.4 kΩ
      2 (VA) - 3 (E2) Accelerator fully closed → fully open Value changes without interruption

    NG

    REPLACE ACCELERATOR BELLCRANK ASSEMBLY

    OK

  4. CHECK HARNESS AND CONNECTOR


    1. Disconnect the accelerator bellcrank assembly connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A26*1-1 (VC) - E36-1 (VCP1) Always Below 1 Ω
      A26*1-2 (VA) - E36-8 (VAP1) Always Below 1 Ω
      A26*1-3 (E2) - E36-2 (EP1) Always Below 1 Ω
      A27*2-1 (VC) - E36-1 (VCP1) Always Below 1 Ω
      A27*2-2 (VA) - E36-8 (VAP1) Always Below 1 Ω
      A27*2-3 (E2) - E36-2 (EP1) Always Below 1 Ω

      *1: w/ Control Lever

      *2: w/o Control Lever

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A26*1-1 (VC) or E36-1 (VCP1) - Body ground Always 10 kΩ or higher
      A26*1-2 (VA) or E36-8 (VAP1) - Body ground Always 10 kΩ or higher
      A26*1-3 (E2) or E36-2 (EP1) - Body ground Always 10 kΩ or higher
      A27*2-1 (VC) or E36-1 (VCP1) - Body ground Always 10 kΩ or higher
      A27*2-2 (VA) or E36-8 (VAP1) - Body ground Always 10 kΩ or higher
      A27*2-3 (E2) or E36-2 (EP1) - Body ground Always 10 kΩ or higher

      *1: w/ Control Lever

      *2: w/o Control Lever

    4. Reconnect the accelerator bellcrank assembly connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE ECM Click here