SEAT HEATER SYSTEM TERMINALS OF ECU


  1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    B000UA1N03

    1. Disconnect the P58 air conditioning amplifier assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      P58-2 (IG+) - Body ground R - Body ground IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      P58-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the P58 air conditioning amplifier assembly connector.

    4. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      P56-15 (SHD+) - Body ground P - Body ground Seat heater switch (for LH) volume signal

      • Engine switch on (IG)

      • Seat heater switch (for LH) on: (LO)

      		 Below 1 V
      P58-16 (SHP+) - Body ground L - Body ground Seat heater switch (for RH) volume signal

      • Engine switch on (IG)

      • Refreshing seat switch on (LO)

        Seat heater switch (for RH): on (LO)

      		 Below 1 V
      P56-17 (TSL) - Body ground B - Body ground Seat heater sensor (for LH) input signal

      Engine switch off

      (0 to 30°C [32 to 86°F])

      		 26.74 to 8.41 kΩ
      P56-18 (TSR) - Body ground G - Body ground Seat heater sensor (for RH) input signal

      Engine switch off

      (0 to 30°C [32 to 86°F])

      		 26.74 to 8.41 kΩ
      P57-8 (SG-5) - Body ground LG - Body ground Sensor ground Always Below 1 Ω
      P56-9 (SG-6) - Body ground R - Body ground Sensor ground Always Below 1 Ω

  2. CHECK RADIO RECEIVER ASSEMBLY

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