LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2013 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display (Diagnostics - Introduction) >> Meter / Gauge System >> Terminals Of Ecu [01/2012 - ] >> Terminals Of Ecu [01/2012 - ]

Terminals Of Ecu [01/2012 - ]

  1. CHECK COMBINATION METER 
    Fig 1: Combination Meter Connector Terminal Identification
    GTY153825Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance and voltage according to the value(s) in the table below.
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      E77-1 (R/O) - Body ground P - Body ground RSCA OFF indicator light input signal Engine switch on (IG), RSCA OFF indicator light on Below 1 V
      Engine switch on (IG), RSCA OFF indicator light off 8 to 14 V
      E77-2 (CHG-) - Body ground B - Body ground CHARGE warning light Engine switch on (IG), CHARGE warning light on Below 1 V
      Engine switch on (IG), CHARGE warning light off 11 to 14 V
      E77-4 (LP) - Body ground V - Body ground SECURITY warning light Security warning light off Below 1 V
      Security warning light on Below 1 V ←→ 11 to 14 V
      E77-5 (SI) - Body ground V - Body ground Speed signal (input) Engine switch on (IG), wheel turned slowly Pulse generation
      E77-6 (+S) - Body ground V - Body ground Speed signal (output) Engine switch on (IG), wheel turned slowly Pulse generation
      E77-8 (B) - Body ground L - Body ground Turn signal L Engine switch on (IG), turn signal switch neutral position Below 1 V
      Engine switch on (IG), turn signal switch turned to right Alternating between below 1 V and 11 to 14 V
      E77-10 (B) - Body ground R - Body ground Turn signal R Engine switch on (IG), turn signal switch neutral position Below 1 V
      Engine switch on (IG), turn signal switch turned to left Alternating between below 1 V and 11 to 14 V
      E77-14 (E) - Body ground B - Body ground Fuel sender gauge ground Always Below 1 Ω
      E77-15 (L) - Body ground Y - Body ground Fuel sender gauge signal Fuel F (full tank) → E (empty) 4.5 to 9 V
      E77-16 (ILL-) - Body ground W - Body ground Light control rheostat signal (for bulb) Light control rheostat knob fully turned left Below 1 V
      Light control rheostat knob fully turned from left to right Resistance increases when turned to right
      E77-17 (ILL-) - Body ground W - Body ground Light control rheostat signal (for LED) Light control rheostat knob fully turned left Below 1 V
      Light control rheostat knob fully turned from left to right Resistance increases when turned to right
      E77-18 (CHK) - Body ground R - Body ground MIL input signal Engine switch on (IG), MIL on Below 3 V
      Engine switch on (IG), MIL off 11 to 14 V
      E77-20 (EP) - Body ground W-B - Body ground Ground Always Below 1 V
      E77-21 (B) - Body ground R - Body ground Power source Always 11 to 14 V
      E77-23 (OIL) - Body ground L - Body ground Engine oil level signal Engine oil level sensor on Below 1 V
      Engine oil level sensor off 11 to 14 V
      E77-24 (FLDS) - Body ground B - Body ground 3rd seat information signal 3rd Seat displayed Below 1 V
      3rd Seat not displayed 11 to 14 V
      E77-25 (MSSL) - Body ground L - Body ground Spiral cable signal Engine switch on (IG), steering pad switch signal DISP off Below 1 V
      Engine switch on (IG), steering pad switch signal DISP on 11 to 14 V
      E77-26 (ET) - Body ground BR - Body ground Ground Always Below 1 Ω
      E77-27 (RSET) - Body ground B - Body ground Light control rheostat signal Engine switch on (IG), light control rheostat ODO/TRIP switch off Below 1 V
      Engine switch on (IG), light control rheostat ODO/TRIP switch on 11 to 14 V
      E77-28 (WLVL) - Body ground V - Body ground Washer level warning signal Washer fluid level sensor on Below 1 V
      Washer fluid level sensor off 11 to 14 V
      E77-30 (IG+) - Body ground B - Body ground Engine switch signal Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      E77-31 (TC) - Body ground B - Body ground Light control rheostat signal Engine switch on (IG), light control rheostat TAIL cancel switch off Below 1 V
      Engine switch on (IG), light control rheostat TAIL cancel switch on 10 kΩ or higher
      E77-32 (ILL+) - Body ground G - Body ground Light control rheostat signal Engine switch on (IG) 4.6 to 5.4 V
      E77-33 (TR) - Body ground W - Body ground Light control rheostat knob input Light control rheostat knob fully turned left Below 1 V
      Light control rheostat knob fully turned right 10 kΩ or higher
      E77-34 (E2) - Body ground L - Body ground Light control rheostat ground Always Below 1 V
      E77-39 (WRNP) - Body ground Y - Body ground Seat belt condition signal
      (Passenger side)      		 Passenger seat belt indicator is off Below 1 V
      Passenger seat belt indicator blinks Alternating between below 1 V and 11 to 14 V
      E77-40 (S) - Body ground L - Body ground Oil pressure receiver gauge signal Engine switch on (IG), Oil pressure receiver gauge H Below 1 V
      Engine switch on (IG), Oil pressure receiver gauge L 11 to 14 V
      • If the result is not as specified, the meter may have a malfunction.
  2. CHECK COMBINATION METER INNER CIRCUIT 
    Fig 2: Identifying Combination Meter Inner Circuit Diagram (1 Of 4)
    GTY259670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 3: Identifying Combination Meter Inner Circuit Diagram (2 Of 4)
    GTY419583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 4: Identifying Combination Meter Inner Circuit Diagram (3 Of 4)
    GTY395595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 5: Identifying Combination Meter Inner Circuit Diagram (4 Of 4)
    GTY407584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals