Dtc P064C Glow Plug Control Module

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Kd-Ftv Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT

CHECK GLOW PLUG CONTROLLER

CHECK HARNESS AND CONNECTOR

INSPECT GLOW PLUG

REPLACE GLOW PLUG

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

CHECK HARNESS AND CONNECTOR

REPLACE GLOW PLUG CONTROLLER

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

REPLACE GLOW PLUG

CHECK HARNESS AND CONNECTOR

REPLACE GLOW PLUG CONTROLLER

REPAIR OR REPLACE HARNESS OR CONNECTOR

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

DTC P064C Glow Plug Control Module

DTC P066B Cylinder 1 Glow Plug Control Circuit High

DTC P066D Cylinder 2 Glow Plug Control Circuit High

DTC P066F Cylinder 3 Glow Plug Control Circuit High

DTC P0671 Cylinder 1 Glow Plug Circuit/Open

DTC P0672 Cylinder 2 Glow Plug Circuit/Open

DTC P0673 Cylinder 3 Glow Plug Circuit/Open

DTC P0674 Cylinder 4 Glow Plug Circuit/Open

DTC P067B Cylinder 4 Glow Plug Control Circuit High

DTC P166F Glow Plug Control Module Circuit Short


DESCRIPTION


P064C
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
The MOS inside the glow plug control unit is detected as being stuck on 3 times while the glow plugs are on (2 trip detection logic).
Glow plug controller

P066B
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
A short circuit in the No. 1 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 1 glow plug
  3. Short in No. 1 glow plug circuit

P066D
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
A short circuit in the No. 2 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 2 glow plug
  3. Short in No. 2 glow plug circuit

P066F
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
A short circuit in the No. 3 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 3 glow plug
  3. Short in No. 3 glow plug circuit

P067B
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
A short circuit in the No. 4 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 4 glow plug
  3. Short in No. 4 glow plug circuit

P0671
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
An open circuit in the No. 1 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 1 glow plug
  3. Open in No. 1 glow plug circuit

P0672
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
An open circuit in the No. 2 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 2 glow plug
  3. Open in No. 2 glow plug circuit

P0673
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
An open circuit in the No. 3 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 3 glow plug
  3. Open in No. 3 glow plug circuit

P0674
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
An open circuit in the No. 4 glow plug circuit is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. No. 4 glow plug
  3. Open in No. 4 glow plug circuit

P166F
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Enter check mode
A short circuit in a wire harness between the glow plugs is detected 3 times while the glow plugs are on (2 trip detection logic).
  1. Glow plug controller
  2. Open or short in glow plug circuit

WIRING DIAGRAM

Refer to DTC P052F (HILUX_TGN26 RM000004HXU00JX_02.html).

INSPECTION PROCEDURE

NOTICE:
  1. Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  2. After replacing the ECM, the new ECM needs registration (HILUX_TGN26 RM0000012XK05AX.html) and initialization (HILUX_TGN26 RM000000TIN058X.html).
HINT:
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
1.CHECK DTC OUTPUT

  1. Connect the GTS to the DLC3.

  1. Turn the ignition switch to ON and turn the GTS on.

  1. Enter the following menus: Powertrain / Engine / Trouble Codes.

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    P0671, P0672, P0673 and/or P0674 is output
    		A
    P066B, P066D, P066F and/or P067B is output
    		B
    P064C and/or P166F is output
    		C


B
Go to step 8

C
Go to step 13
A


2.CHECK GLOW PLUG CONTROLLER


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Kd-Ftv Engine Control.Ecd System (For Dpf). Dtc P064C Glow Plug Control Module

  1. Disconnect the glow plug controller connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A73-1 (BATT) - Body ground
    		Always
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Glow Plug Controller)

  1. Reconnect the glow plug controller connector.



NG
Go to step 6
OK


3.CHECK HARNESS AND CONNECTOR


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Kd-Ftv Engine Control.Ecd System (For Dpf). Dtc P064C Glow Plug Control Module

  1. Disconnect connectors of the glow plug controller.

  1. Remove the No. 1 glow plug connector from the glow plug.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C117-1 (GL1) - No. 1 glow plug connector terminal 1
    		Always
    		Below 1 Ω
    C117-2 (GL2) - No. 1 glow plug connector terminal 2
    		Always
    		Below 1 Ω
    C116-1 (GL3) - No. 1 glow plug connector terminal 3
    		Always
    		Below 1 Ω
    C116-2 (GL4) - No. 1 glow plug connector terminal 4
    		Always
    		Below 1 Ω
    Text in Illustration
    *1
    		No. 1 Glow Plug Connector
    *a
    		Front view of wire harness connector
    (to Glow Plug Controller)
    *b
    		Front view of wire harness connector
    (to Glow Plug Controller)

  1. Reconnect the glow plug controller connector.

  1. Reinstall the No. 1 glow plug connector.



NG
Go to step 6
OK


4.INSPECT GLOW PLUG

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK0X4X.html).

  1. Exchange the glow plugs of the malfunctioning cylinders (the cylinders indicated by output DTCs) with the glow plugs of normally functioning cylinders.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Using the GTS, switch the ECM from normal mode to check mode (HILUX_TGN26 RM000000PDL0O3X.html).

  1. Read the DTCs.

    Result
    Result
    		Proceed to
    Same DTCs (that have been erased)
    		A
    Other DTCs
    		B
    HINT:
    Check for DTCs in check mode.


A
Go to step 14
B


5.REPLACE GLOW PLUG

  1. Replace the glow plug (HILUX_TGN26 RM000000JIT00JX.html).



NEXT
Go to step 7

6.REPAIR OR REPLACE HARNESS OR CONNECTOR

  1. Repair or replace the harness or connector.


NEXT


7.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the GTS to the DLC3.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK0X4X.html).

  1. Turn the ignition switch off for 30 seconds or more.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Using the GTS, switch the ECM from normal mode to check mode (HILUX_TGN26 RM000000PDL0O3X.html).

  1. Confirm that the DTC is not output again.

    HINT:
    Check for DTCs in check mode.

NEXT

END

8.CHECK HARNESS AND CONNECTOR


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Kd-Ftv Engine Control.Ecd System (For Dpf). Dtc P064C Glow Plug Control Module

  1. Disconnect connectors of the glow plug controller.

  1. Remove the No. 1 glow plug connector from the glow plug.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C117-1 (GL1) or No. 1 glow plug connector terminal 1 - Body ground
    		Always
    		10 kΩ or higher
    C117-2 (GL2) or No. 1 glow plug connector terminal 2 - Body ground
    		Always
    		10 kΩ or higher
    C116-1 (GL3) or No. 1 glow plug connector terminal 3 - Body ground
    		Always
    		10 kΩ or higher
    C116-2 (GL4) or No. 1 glow plug connector terminal 4 - Body ground
    		Always
    		10 kΩ or higher
    HINT:
    Make sure that there are no short circuits to the battery.
    Text in Illustration
    *1
    		No. 1 Glow Plug Connector
    *a
    		Front view of wire harness connector
    (to Glow Plug Controller)
    *b
    		Front view of wire harness connector
    (to Glow Plug Controller)

  1. Reconnect the glow plug controller connector.

  1. Reinstall the No. 1 glow plug connector.



NG
Go to step 10
OK


9.REPLACE GLOW PLUG CONTROLLER

  1. Replace the glow plug controller (HILUX_TGN26 RM000004LIW007X.html).



NEXT
Go to step 11

10.REPAIR OR REPLACE HARNESS OR CONNECTOR

  1. Repair or replace the harness or connector.


NEXT


11.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the GTS to the DLC3.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK0X4X.html).

  1. Turn the ignition switch off for 30 seconds or more.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Using the GTS, switch the ECM from normal mode to check mode (HILUX_TGN26 RM000000PDL0O3X.html).

  1. Confirm that the DTC is not output again.

    OK:
    No DTC is output.
    HINT:
    Check for DTCs in check mode.


NG
Go to step 12
OK

END

12.REPLACE GLOW PLUG

  1. Replace the glow plug (HILUX_TGN26 RM000000JIT00JX.html).



NEXT
Go to step 16

13.CHECK HARNESS AND CONNECTOR


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Kd-Ftv Engine Control.Ecd System (For Dpf). Dtc P064C Glow Plug Control Module

  1. Disconnect connectors of the glow plug controller.

  1. Remove the No. 1 glow plug connector from the glow plug.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C117-1 (GL1) or No. 1 glow plug connector terminal 1 - Body ground
    		Always
    		10 kΩ or higher
    C117-2 (GL2) or No. 1 glow plug connector terminal 2 - Body ground
    		Always
    		10 kΩ or higher
    C116-1 (GL3) or No. 1 glow plug connector terminal 3 - Body ground
    		Always
    		10 kΩ or higher
    C116-2 (GL4) or No. 1 glow plug connector terminal 4 - Body ground
    		Always
    		10 kΩ or higher
    HINT:
    Make sure that there are no short circuits to the battery.
    Text in Illustration
    *1
    		No. 1 Glow Plug Connector
    *a
    		Front view of wire harness connector
    (to Glow Plug Controller)
    *b
    		Front view of wire harness connector
    (to Glow Plug Controller)

  1. Reconnect the glow plug controller connector.

  1. Reinstall the No. 1 glow plug connector.



NG
Go to step 15
OK


14.REPLACE GLOW PLUG CONTROLLER

  1. Replace the glow plug controller (HILUX_TGN26 RM000004LIW007X.html).



NEXT
Go to step 16

15.REPAIR OR REPLACE HARNESS OR CONNECTOR

  1. Repair or replace the harness or connector.


NEXT


16.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the GTS to the DLC3.

  1. Clear the DTCs (HILUX_TGN26 RM000000PDK0X4X.html).

  1. Turn the ignition switch off for 30 seconds or more.

  1. Turn the ignition switch to ON.

  1. Turn the GTS on.

  1. Using the GTS, switch the ECM from normal mode to check mode (HILUX_TGN26 RM000000PDL0O3X.html).

  1. Confirm that the DTC is not output again.

    HINT:
    Check for DTCs in check mode.

NEXT

END