LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2014 >> RAV4 EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (Chg_F076 - U0424-537) & Circuit Tests)) (Electric) >> Hybrid Control System >> DTC THC_d0005: Battery Coolant Pump 1 Malfunction; DTC THC_d0006: Battery Coolant Pump 2 Malfunction [09/2013 - ] >> Procedure

DTC THC_d0005: Battery Coolant Pump 1 Malfunction; DTC THC_d0006: Battery Coolant Pump 2 Malfunction [09/2013 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR (FOR HV BATTERY) - THERMAL CONTROL ECU) 
    GTY364388Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect connector D5 from the water pump with motor LH (for HV battery).
      GTY381712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect connector D6 from the water pump with motor RH (for HV battery).
      GTY384194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect connector L30 from the thermal control ECU.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      FOR LH SIDE

      Tester Connection Switch Condition Specified Condition
      D5-4 (B1REQ) - L30-13 (B1REQ) Power switch off Below 1 Ω
      D5-2 (B1FDB) - L30-3 (B1FDB) Power switch off Below 1 Ω
      D5-3 (GND) - Body ground Power switch off Below 1 Ω
      D5-4 (B1REQ) or L30-13 (B1REQ) - Body ground and other terminals Power switch off 1 kΩ or higher
      D5-2 (B1FDB) or L30-3 (B1FDB) - Body ground and other terminals Power switch off 1 kΩ or higher
      FOR RH SIDE

      Tester Connection Switch Condition Specified Condition
      D6-4 (B2REQ) - L30-14 (B2REQ) Power switch off Below 1 Ω
      D6-2 (B2FDB) - L30-4 (B2FDB) Power switch off Below 1 Ω
      D6-3 (GND) - Body ground Power switch off Below 1 Ω
      D6-4 (B2REQ) or L30-14 (B2REQ) - Body ground and other terminals Power switch off 1 kΩ or higher
      D6-2 (B2FDB) or L30-4 (B2FDB) - Body ground and other terminals Power switch off 1 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Water Pump with Motor LH (for HV Battery))
      *b Front view of wire harness connector
      (to Water Pump with Motor RH (for HV Battery))
      *c Front view of wire harness connector
      (to Thermal Control ECU)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. CHECK WATER PUMP WITH MOTOR (FOR HV BATTERY (POWER SOURCE)) 
    GTY364389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect connector D5 from the water pump with motor LH (for HV battery).
      GTY364338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect connector D6 from the water pump with motor RH (for HV battery).
    3. Turn the power switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      FOR LH SIDE

      Tester Connection Switch Condition Specified Condition
      D5-1 (IGCT) - Body ground Power switch on (IG) 11 to 14 V
      FOR RH SIDE

      Tester Connection Switch Condition Specified Condition
      D6-1 (IGCT) - Body ground Power switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Water Pump with Motor LH (for HV Battery))
      *b Front view of wire harness connector
      (to Water Pump with Motor RH (for HV Battery))

    NG → See step   4 

    OK: Go to next step 

  3. REPLACE WATER PUMP WITH MOTOR (FOR HV BATTERY) 
    1. Replace the water pump with motor (for HV battery). Refer to REMOVAL [09/2013 - ] .
    2. Connect the RAV4 EV diagnostic tool to the No. 2 DLC3.
    3. Turn the power switch on (READY).
    4. Turn the RAV4 EV diagnostic tool on.
    5. Enter the following menus: Thermal Test / Thermal System Test.
    6. Perform the "Thermal System Test" Active Test.
    7. Enter the following menus: DTCs.
    8. Read the alert codes.
      RESULT

      Result Proceed to
      Alert code is not output A
      THC_d0005 or THC_d0006 is output B

    B → See step   7 

    A → COMPLETED 

  4. CHECK BATT W/P FUSE 
    GTY373328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the BATT W/P 1 fuse from the No. 1 motor compartment room relay block and junction block assembly.
    2. Remove the BATT W/P 2 fuse from the No. 1 motor compartment room relay block and junction block assembly.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      BATT W/P 1 fuse terminals Always Below 1 Ω
      BATT W/P 2 fuse terminals Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 No. 1 Motor Compartment Room Relay Block and Junction Block Assembly
      *2 BATT W/P 1 Fuse
      *3 BATT W/P 2 Fuse

    NG → CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE 

    OK: Go to next step 

  5. CHECK W/P-IGCT FUSE 
    GTY370988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the W/P-IGCT fuse from the No. 1 motor compartment room relay block and junction block assembly.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      W/P-IGCT fuse terminals Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 No. 1 Motor Compartment Room Relay Block and Junction Block Assembly
      *2 W/P-IGCT Fuse

    NG → CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE 

    OK: Go to next step 

  6. INSPECT IGCT 1 RELAY 
    1. Inspect the IGCT 1 relay. Refer to ON-VEHICLE INSPECTION [09/2013 - ] - Step 1 .

    NG → REPLACE IGCT 1 RELAY 

    OK → REPLACE HARNESS OR CONNECTOR (IGCT 1 RELAY - WATER PUMP WITH MOTOR (FOR HV BATTERY), AUXILIARY BATTERY) 

  7. REPLACE THERMAL CONTROL ECU. Refer to  REMOVAL [09/2013 - ] 
scientia non olet · About LEMON Manuals