TIRE PRESSURE WARNING SYSTEM ECU Power Source Circuit

DESCRIPTION

The IG circuit is the power source for the tire pressure warning ECU and receiver.

WIRING DIAGRAM

B005ARHE01

CAUTION / NOTICE / HINT

Note


  • When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the GTS and write them down before removal.

    Click here

  • It is necessary to perform initialization after registration Click here of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.

Tech Tips

w/o Stop and Start System:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (ECU - BATTERY AND BODY GROUND)


    1. B005BANC36
      *A except AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      *B for AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      *a

      Front view of wire harness connector

      (to Tire Pressure Warning ECU and Receiver)

      Disconnect the P11*1 or Q46*2 tire pressure warning ECU and receiver connector.


      • *1: except AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label

      • *2: for AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label

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

      Standard Voltage
      except AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      Tester Connection Condition Specified Condition
      P11-1 (IG) - Body ground Engine switch on (IG) 10 to 16 V
      Engine switch off Below 1 V
      for AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      Tester Connection Condition Specified Condition
      Q46-1 (IG) - Body ground Engine switch on (IG) 10 to 16 V
      Engine switch off Below 1 V

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

      Standard Resistance
      except AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      Tester Connection Condition Specified Condition
      P11-12 (GND) - Body ground Always Below 1 Ω
      for AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label
      Tester Connection Condition Specified Condition
      Q46-12 (GND) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      OK (except AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label) A
      OK (for AGZ10R-AWTLTQ or AGZ15R-AWTLTQ Deck Floor Box LH without Compact Spare Tire Caution Label) B
      NG (w/o Stop and Start System) C
      NG (w/ Stop and Start System) D

    A

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    B

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    D

    INSPECT STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) Click here