ECD SYSTEM, Diagnostic DTC:P0606, P1197, P1641

DTC Code DTC Name
P0606 ECM Processor
P1197 Piezo Power Stage Voltage Control / Global Incapacity
P1641 Piezo Power Stage Initializing of Driver Failed

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area Possible to Detect
Ignition Switch Engine Run
P0606 Injector circuit fault

  • Injector

  • Injector circuit

  • ECM

 ON ON
P1197

Injector circuit fault

(1 trip detection logic)

  • Injector

  • Injector circuit

  • ECM

 ON ON
P1641 Injector circuit fault

  • Injector

  • Injector circuit

  • ECM

 ON ON

CAUTION:


  • Do not reuse the injection pipe. Be sure to replace it with a new one.

  • Do not reuse the injection nozzle seat. If the injector has been removed, be sure to replace the injector nozzle seat with a new one.

  • The injector is controlled by a voltage of +/- 70 V.

  • Be sure to connect the injector connectors correctly to prevent malfunctions in the injector.

  • Do not use any power source other than the ECM for the injector.

  • Do not apply voltage to the injector while it is not grounded to body.

  • Do not disassemble the injector.

  • Do not use the ultrasonic cleaning tool to clean the injector.

FAIL-SAFE

DTC No. Fail-safe Operation Fail-safe Deactivation Condition
P0606 DC/DC converter control inhibited. -
P1197

  • DC/DC converter control inhibited.

  • Injection inhibited.

 -
P1641

  • DC/DC converter control inhibited.

  • Engine reaction: engine stall.

 -

WIRING DIAGRAM

A0138SPE04

INSPECTION PROCEDURE

Tech Tips


  • If the ECM is replaced, variant coding (variant coding indicates the presence of vehicle accessory items, A/C, etc.) should always be performed Click here.

  • Before removing the ECM and the peripheral parts, wait at least 3 minute after turning the ignition switch off (If the cooling fan is operating, remove the ECM and the peripheral parts after the fan stops.).

PROCEDURE


  1. CHECK INJECTOR


    1. A0138ZUE01

      Disconnect the N1, N2, N3 and N4 injector connectors.

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

      Standard resistance
      Tester Connection Specified Condition
      1 - 2 150 to 250 kΩ

    NG

    REPLACE INJECTOR(S)

    OK

  2. CHECK CONNECTORS (INSTALLATION)


    1. Check the installation condition the ECM and injector connector.

      OK
      The connectors all installed correctly.

    NG

    REPAIR OR REPLACE CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (INJECTOR - ECM)


    1. A0138J3E01

      Disconnect the B54 ECM connector.

    2. Disconnect the N1, N2, N3 and N4 injector connectors.

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

      Standard resistance
      Check for open
      Tester Connection Specified Condition
      #10 (B54-28) - Injector (No.1) (N1-1) Below 1 Ω
      PINJ1 (B54-29) - Injector (No.1) (N1-2) Below 1 Ω
      #20 (B54-25) - Injector (No.2) (N2-1) Below 1 Ω
      PINJ2 (B54-30) - Injector (No.2) (N2-2) Below 1 Ω
      #30 (B54-26) - Injector (No.3) (N3-1) Below 1 Ω
      PINJ3 (B54-32) - Injector (No.3) (N3-2) Below 1 Ω
      #40 (B54-27) - Injector (No.4) (N4-1) Below 1 Ω
      PINJ4 (B54-31) - Injector (No.4) (N4-2) Below 1 Ω
      Check for short
      Tester Connection Specified Condition
      #10 (B54-28) or Injector (No.1) (N1-1) - Body ground 10 kΩ or higher
      PINJ1 (B54-29) or Injector (No.1) (N1-2) - Body ground 10 kΩ or higher
      #20 (B54-25) or Injector (No.2) (N2-1) - Body ground 10 kΩ or higher
      PINJ2 (B54-30) or Injector (No.2) (N2-2) - Body ground 10 kΩ or higher
      #30 (B54-26) or Injector (No.3) (N3-1) - Body ground 10 kΩ or higher
      PINJ3 (B54-32) or Injector (No.3) (N3-2) - Body ground 10 kΩ or higher
      #40 (B54-27) or Injector (No.4) (N4-1) - Body ground 10 kΩ or higher
      PINJ4 (B54-31) or Injector (No.4) (N4-2) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK POWER SOURCE CIRCUIT


    1. Check that the battery voltage, ECM power source voltage, and the ground condition of the ECM are normal.

      OK
      The battery voltage, ECM power source voltage, and the ground condition of the ECM are normal.

      Tech Tips

      Make sure that the battery is not discharged during the inspection.


    NG

    REPAIR POWER SOURCE CIRCUIT

    OK

  5. CHECK IF DTC RECURS (P0606, P1197 AND/OR P1641)


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTC Click here.

    3. Turn the ignition switch to the ON position and turn the intelligent tester on.

    4. Select the following menu items: Powertrain / Engine and ECT / DTC.

    5. Read the DTCs displayed on the intelligent tester.

      Result
      Display (DTC Output) Proceed To
      No output A
      P0606, P1197 and/or P1641 B

    B

    REPLACE ECM

    A

    END