Ecd System (W/O Egr Cooler) Injector Circuit

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 INJECTOR DRIVER (POWER SOURCE)

INSPECT NO. 1 INTEGRATION RELAY (EDU)

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

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

ECD SYSTEM (w/o EGR Cooler) - 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 P0200 (HILUX_TGN26 RM00000187V062X_06.html).

INSPECTION PROCEDURE

NOTICE:
  1. After replacing the ECM, the new ECM needs registration (HILUX_TGN26 RM0000012XK07GX.html) and initialization (HILUX_TGN26 RM000000TIN04EX.html).
  2. Inspect the fuses of circuits related to this system before performing the following inspection procedure.
1.CHECK INJECTOR DRIVER (POWER SOURCE)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Kd-Ftv Engine Control.Ecd System (For Dpf).Ecd System (W/O Egr Cooler) 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
    C43-2 (+B) - C43-3 (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 connector.



NG
Go to step 2
OK

CHECK FOR INTERMITTENT PROBLEMS (HILUX_TGN26 RM000000PDQ0YTX.html)

2.INSPECT NO. 1 INTEGRATION RELAY (EDU)

  1. Inspect the No. 1 integration relay (EDU) (HILUX_TGN26 RM00000469100QX_01_0005.html).



NG
REPLACE NO. 1 INTEGRATION RELAY (EDU)
OK


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

  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
    C43-2 (+B) - 1J-8
    		Always
    		Below 1 Ω
    C43-3 (GND) - Body ground
    		Always
    		Below 1 Ω
    C43-2 (+B) or 1J-8 - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the No. 1 injector driver connector.

  1. Reinstall the integration relay.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


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

  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
    G39-10 (IREL) - 1J-7
    		Always
    		Below 1 Ω
    G39-10 (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 RM0000013Z001IX.html)