Ecd System (For Dpf) Injector Circuit

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
2Kd-Ftv Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK INJECTOR DRIVER (POWER SOURCE)

INSPECT NO. 1 INTEGRATION RELAY (EDU RELAY)

CHECK HARNESS AND CONNECTOR (INJECTOR DRIVER - NO. 1 INTEGRATION RELAY)

CHECK HARNESS AND CONNECTOR (ECM - NO. 1 INTEGRATION RELAY)

ECD SYSTEM (for DPF) - Injector Circuit


DESCRIPTION

The injector driver drives the injectors at high speeds with a high-voltage DC/DC converter. The ECM constantly monitors the injector driver and stops the engine if an abnormal condition is detected.

WIRING DIAGRAM

Refer to DTC P0201 (HILUX_TGN26 RM00000187V05IX_06.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 RM0000012XK070X.html) and initialization (HILUX_TGN26 RM000000TIN057X.html).
  3. After replacing the fuel supply pump assembly, the ECM needs initialization (HILUX_TGN26 RM000000TIN057X.html).
  4. After replacing an injector assembly, the ECM needs registration (HILUX_TGN26 RM0000012XK070X.html).
1.CHECK INJECTOR DRIVER (POWER SOURCE)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.2Kd-Ftv Engine Control.Ecd System (For Dpf).Ecd System (For Dpf) Injector Circuit

  1. Disconnect the injector driver connectors.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    C107-2 (+B) - C107-4 (GND)
    		Ignition switch ON
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Injector Driver)

  1. Reconnect the injector driver connectors.



NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000000PDQ0Y1X.html)

2.INSPECT NO. 1 INTEGRATION RELAY (EDU RELAY)

  1. Inspect the No. 1 integration relay (EDU relay) (HILUX_TGN26 RM00000469100PX_01_0005.html).



NG
REPLACE NO. 1 INTEGRATION RELAY (EDU RELAY)
OK


3.CHECK HARNESS AND CONNECTOR (INJECTOR DRIVER - NO. 1 INTEGRATION RELAY)

  1. Remove the No. 1 integration relay from the engine room relay block and junction block assembly.

  1. Disconnect the injector driver connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    C107-2 (+B) - 1J-8
    		Always
    		Below 1 Ω
    C107-4 (GND) - Body ground
    		Always
    		Below 1 Ω
    C107-2 (+B) or 1J-8 - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the injector driver connector.

Reinstall the No. 1 integration relay.


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (ECM - NO. 1 INTEGRATION RELAY)

  1. Remove the No. 1 integration relay from the engine room relay block and junction block assembly.

  1. Disconnect the ECM connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    G148-12 (IREL) - 1J-7
    		Always
    		Below 1 Ω
    G148-12 (IREL) or 1J-7 - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reinstall the No. 1 integration relay.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (HILUX_TGN26 RM0000013Z001HX.html)