LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2019 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 131 (Immobiliser System (HV, W/O Smart Key) - Diagnostics - Introduction) >> IMMOBILISER SYSTEM (for HV Model without Smart Key System) >> Terminals Of Ecu [02/2019 - ] >> Terminals Of Ecu [02/2019 - ]

Terminals Of Ecu [02/2019 - ]

WARNING: This page is about a different variant/trim than selected.
  1. CHECK TRANSPONDER KEY ECU ASSEMBLY 
    Fig 1:
    GTY886254Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the G52 transponder key ECU assembly connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.

      HINT: 

      Measure the values on the wire harness side with the connector disconnected.

      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item / DTC
      G52-4 (+B) - G52-12 (GND) Input LA-GR - LA Auxiliary battery Ignition switch off 11 to 14 V +B
      G52-5 (KSW) - G52-12 (GND) Input B - LA Unlock warning switch signal No door control transmitter assembly in ignition key cylinder 10 kΩ or higher
      • B2780
      • Key SW
      Door control transmitter assembly in ignition key cylinder Below 1 Ω
      G52-6 (IG) - G52-12 (GND) Input L - LA Ignition switch Ignition switch off Below 1 V IG SW
      Ignition switch ON 11 to 14 V
      G52-12 (GND) - Body ground - LA - Body ground Ground Always Below 1 Ω -
    3. Reconnect the G52 transponder key ECU assembly connector.
    4. Measure the voltage and check for pulses according to the value(s) in the table below.
      Terminal No. (Symbol) Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item / DTC
      G52-8 (IND) - G52-12 (GND) Output W - LA Security indicator light signal No door control transmitter assembly in ignition key cylinder, or 20 seconds elapsed after turning ignition switch to ACC or off (immobiliser system set) Pulse generation Immobiliser
      Door control transmitter assembly in ignition key cylinder (immobiliser system unset) Below 1 V
      G52-9 (D) - G52-12 (GND) Input/Output P - LA DLC3 communication Without communication Below 1 V -
      During communication Pulse generation
      G52-2 (ANT1) - G52-12 (GND) Input/Output R - LA Transponder key coil power source No door control transmitter assembly in ignition key cylinder Below 1 V -
      Within 3 seconds of inserting door control transmitter assembly into ignition key cylinder Pulse generation
      (See waveform 1)
      G52-3 (ANT2) - G52-12 (GND) Input/Output W - LA Transponder key coil communication signal No door control transmitter assembly in ignition key cylinder Below 1 V -
      Within 3 seconds of inserting door control transmitter assembly into ignition key cylinder Pulse generation
      (See waveform 2)
      G52-10 (EFII) - G52-12 (GND) Input LG - LA EFI communication input
      (Signal input from hybrid vehicle control ECU assembly to transponder key ECU assembly)      		 Ignition switch off 11 to 14 V -
      G52-10 (EFII) - G52-12 (GND) Input LG - LA EFI communication input
      (Signal input from hybrid vehicle control ECU assembly to transponder key ECU assembly)      		 Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery Pulse generation
      (See waveform 3)
      G52-11 (EFIO) - G52-12 (GND) Output L - LA EFI communication output
      (Signal output from transponder key ECU assembly to hybrid vehicle control ECU assembly)      		 Ignition switch off Below 1 V -
      G52-11 (EFIO) - G52-12 (GND) Output L - LA EFI communication output
      (Signal output from transponder key ECU assembly to hybrid vehicle control ECU assembly)      		 Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery Pulse generation
      (See waveform 4)
    5. Using an oscilloscope, check the waveform.
      1. Waveform 1
        Fig 2: Identifying Waveform 1
        GTY362143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Tester Connection G52-2 (ANT1) - G52-12 (GND)
        Tool Setting 20 V/DIV., 2 s./DIV.
        Condition Within 3 seconds of inserting door control transmitter assembly into ignition key cylinder
      2. Waveform 2
        Fig 3: Waveform 2
        GTY904714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Tester Connection G52-3 (ANT2) - G52-12 (GND)
        Tool Setting 20 V/DIV., 2 s./DIV.
        Condition Within 3 seconds of inserting door control transmitter assembly into ignition key cylinder
      3. Waveform 3
        Fig 4: Identifying Waveform 3
        GTY367342Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms. *b Approximately 270 ms.
        Tester Connection G52-10 (EFII) - G52-12 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery
      4. Waveform 4
        Fig 5: Identifying Waveform 4
        GTY380827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms. *b Approximately 270 ms.
        Tester Connection G52-11 (EFIO) - G52-12 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery
  2. CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY 
    Fig 6:
    GTY868634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      A31-35 (IG2) - A30-3 (E1) B - W-B Input Power source Ignition switch off 11 to 14 V -
      A30-3 (E1) - Body ground W-B - Body ground - Ground Always Below 1 Ω -
      A30-23 (IMO) - A30-3 (E1) LA-LG - W-B Output EFI communication output
      (Signal input from hybrid vehicle control ECU assembly to ID code box (immobiliser code ECU))      		 Ignition switch off 11 to 14 V -
      A30-23 (IMO) - A30-3 (E1) LA-LG - W-B Output EFI communication output
      (Signal input from hybrid vehicle control ECU assembly to ID code box (immobiliser code ECU))      		 Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery Pulse generation
      (See waveform 1)      		 -
      A30-10 (IMI) - A30-3 (E1) LA-L - W-B Input EFI communication input
      (Signal output from ID code box (immobiliser code ECU) to hybrid vehicle control ECU assembly)      		 Ignition switch off Below 1 V -
      A30-10 (IMI) - A30-3 (E1) LA-L - W-B Input EFI communication input
      (Signal output from ID code box (immobiliser code ECU) to hybrid vehicle control ECU assembly)      		 Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery Pulse generation
      (See waveform 2)      		 -
    2. Using an oscilloscope, check the waveform of the ECU.
      NOTE:

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      1. Waveform 1
        Fig 7: Waveform 1
        GTY367336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        Item Content
        Tester Connection A30-23 (IMO) - A30-3 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery
      2. Waveform 2
        Fig 8: Waveform 2
        GTY384373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        Item Content
        Tester Connection A30-10 (IMI) - A30-3 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery
scientia non olet · About LEMON Manuals