Can Communication System (W/ Vsc) Ecm Communication Stop Mode

Power Source Network. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Networking. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (ECM - BATTERY AND BODY GROUND)

CAN COMMUNICATION SYSTEM (w/ VSC) - ECM Communication Stop Mode


DESCRIPTION


Detection Item
Symptom
Trouble Area
ECM Communication Stop Mode
Either condition is met:
  1. "ECM (Engine)" is not displayed on the "Bus Check" screen.
  2. "ECM Communication Stop Mode" in "DTC Communication Table" applies.
  1. Power source or inside of ECM
  2. ECM

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Ecm Communication Stop Mode


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Ecm Communication Stop Mode


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (ECM - BATTERY AND BODY GROUND)


  1. for 1KD-FTV:



    1. Disconnect the C22, C23, G38 and G39 ECM connectors.


      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Ecm Communication Stop Mode


      Text in Illustration
      *a
      		Front view of wire harness connector
      (to ECM)
      		-
      		-

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      G38-2 (BATT) - Body ground
      		Always
      		11 to 14 V
      G39-1 (+B) - Body ground
      		Battery positive (+) voltage applied to terminal G39-8 (MREL)
      		11 to 14 V
      G39-9 (IGSW) - Body ground
      		Ignition switch ON
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      C23-7 (E1) - Body ground
      		Always
      		Below 1 Ω
      C22-7 (E01) - Body ground
      		Always
      		Below 1 Ω
      C22-6 (E02) - Body ground
      		Always
      		Below 1 Ω


  1. for 1KD-FTV (w/ i-ART):



    1. Disconnect the C164, G156 and G157 ECM connectors.


      Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.Networking.Can Communication System (W/ Vsc).Can Communication System (W/ Vsc) Ecm Communication Stop Mode


      Text in Illustration
      *a
      		Front view of wire harness connector
      (to ECM)
      		-
      		-

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

      Standard Voltage:
      Tester Connection
      		Condition
      		Specified Condition
      G157-23 (BATT) - Body ground
      		Always
      		11 to 14 V
      G157-24 (+B) - Body ground
      		Battery positive (+) voltage applied to terminal G156-11 (MREL)
      		11 to 14 V
      G157-17 (+B2) - Body ground
      		Battery positive (+) voltage applied to terminal G156-11 (MREL)
      		11 to 14 V
      G156-24 (IGSW) - Body ground
      		Ignition switch ON
      		11 to 14 V

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      G157-11 (EC1) - Body ground
      		Always
      		Below 1 Ω
      C164-13 (ME01) - Body ground
      		Always
      		Below 1 Ω
      C164-11 (E01) - Body ground
      		Always
      		Below 1 Ω
      C164-12 (E02) - Body ground
      		Always
      		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (HILUX_TGN26 RM0000013Z001IX.html)