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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0A7A-324 - P1557-887)) >> Hybrid Control System >> DTC P1507-207: PTC A/C Auxiliary Heater Disabled Low >> Procedure

DTC P1507-207: PTC A/C Auxiliary Heater Disabled Low: Procedure

  1. CHECK DTC OUTPUT (HV) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    4. Check if DTCs are output.

      Result

      Result Proceed to
      P1507-207 only is output. A
      P0AE6-225 is also output. B

    B → See step   8 

    A: Go to next step 

  2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) 
    1. Check the connections of the hybrid vehicle control ECU connectors.

      OK

      The connectors are connected securely and there are no contact problems.

      Fig 1: Identifying Hybrid Vehicle Control ECU Connectors
      GTY147636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG → CONNECT SECURELY 

    OK: Go to next step 

  3. CHECK CONNECTOR CONNECTION CONDITION (BATTERY PACK WIRE CONNECTOR) 
    1. Check the connection of the battery pack wire connector.
      Fig 2: Locating Battery Pack Wire Connector
      GTY147637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      The connector is connected securely and there are no contact problems.

      HINT: 

      For the removal and installation procedures related to inspection of the connection of the battery pack wire connector. Refer toREMOVAL .

    NG → CONNECT SECURELY 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (RESISTANCE VALUE OF DCIM INSIDE HYBRID VEHICLE CONTROL ECU) 
    1. Turn the power switch off.
    2. Disconnect the battery pack wire connector.
      Fig 3: Locating Battery Pack Wire Connector
      GTY147637Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying Battery Pack Wire (DCIM)
      GTY134816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      zR2-17 (DCIM) - Body ground Power switch off 1.5 to 2.5 kΩ

    NG → See step   7 

    OK: Go to next step 

  5. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONVERTER CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Turn the power switch off.
    2. Remove the service plug grip. Refer to PRECAUTION .
      NOTE:

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair information because this may cause a malfunction.

    3. Check the connection of the low voltage connector of the hybrid vehicle converter.
      Fig 5: Locating Low Voltage Connector Of Hybrid Vehicle Converter
      GTY137252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      The connector is connected securely and there are no contact problems.

      HINT: 

      For the removal and installation procedures related to inspection of the connection of the low voltage connector of the hybrid vehicle converter. Refer toREMOVAL .

    NG → CONNECT SECURELY 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (BATTERY PACK WIRE CONNECTOR - HYBRID VEHICLE CONVERTER) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
    2. Disconnect the low voltage connector from the hybrid vehicle converter.
      Fig 6: Locating Low Voltage Connector Of Hybrid Vehicle Converter
      GTY137252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      For the removal and installation procedures related to the low voltage connector of the hybrid vehicle converter. Refer toREMOVAL .

    3. Measure the resistance according to the value(s) in the table below.
      Fig 7: Checking Harness And Connector (Battery Pack Wire Connector - Hybrid Vehicle Converter)
      GTY148095Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance (Check for open)

      Tester Connection Switch Condition Specified Condition
      zR2-17 (DCIM) - z35-6 (DCIM) Power switch off Below 1 Ω

      Standard resistance (Check for short)

      Tester Connection Switch Condition Specified Condition
      zR2-17 (DCIM) or z35-6 (DCIM) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   9 

  7. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - BATTERY PACK WIRE) 
    1. Disconnect connector A74 from the hybrid vehicle control ECU.
    2. Turn the power switch off.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 8: Checking Harness And Connector (Hybrid Vehicle Control ECU - Battery Pack Wire)
      GTY147707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance (Check for open)

      Tester Connection Switch Condition Specified Condition
      A74-8 (DCIM) - zR2-17 (DCIM) Power switch off Below 1 Ω

      Standard resistance (Check for short)

      Tester Connection Switch Condition Specified Condition
      A74-8 (DCIM) or zR2-17 (DCIM) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   10 

  8. GO TO DTC CHART (P0AE6-225). Refer to  DTC P0AE6-225: Hybrid Battery Precharge Contactor Control Circuit Low  
  9. REPLACE HYBRID VEHICLE CONVERTER. Refer to  REMOVAL 
  10. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL 
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