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Power Management Control ECU Communication Stop Mode [08/2013 - ]: Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINE FOR DISCONNECTION (POWER MANAGEMENT CONTROL ECU BRANCH LINE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the H2 power management control ECU connector.
      GTY415469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Value
      H2-25 (CA1H) - H2-24 (CA1L) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Power Management Control ECU)

    NG → REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (POWER MANAGEMENT CONTROL ECU) 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) 
    1. Reconnect the H2 power management control ECU connector.
    2. Disconnect the H1 power management control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY396888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Value
      H1-6 (E1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Power Management Control ECU)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND TERMINAL) 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) 
    1. Reconnect the H1 power management control ECU connector.
    2. Connect the cable to the negative (-) auxiliary battery terminal.
    3. Measure the voltage according to the value(s) in the table below.
      GTY419798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Specified Value
      A33-5 (+B1) - Body ground Power switch on (IG) 11 to 14 V
      A31-2 (+B2) - Body ground Power switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Power Management Control ECU)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE TERMINAL) 

    OK → See step   4 

  4. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  REMOVAL [08/2013 - ] 
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