HYBRID CONTROL SYSTEM, Diagnostic DTC:P3108-536

DTC Code DTC Name
P3108-536 Lost Communication with A/C System Control Module

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P3108 536 A/C inverter malfunction

  • Wire harness or connector

  • Compressor with motor assembly

  • Hybrid vehicle control ECU

WIRING DIAGRAM

A005DD4E01
*a A/C
*b Compressor with Motor Assembly
*c Power Management Control ECU

CAUTION / NOTICE / HINT

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Wait for 30 seconds or more with the power switch on (READY) and the air conditioning turned off.

  2. Turn the air conditioning on and wait for 30 seconds or more.

PROCEDURE


  1. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)


    1. Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU connectors Click here.

      B005ZP3E01
      Text in Illustration
      *A for LHD *B for RHD
      OK
      The connectors are connected securely and there are no contact pressure problems.

    NG

    CONNECT SECURELY

    OK

  2. CHECK CONNECTOR CONNECTION CONDITION (COMPRESSOR WITH MOTOR ASSEMBLY CONNECTOR)


    1. A005CKYE03

      Check the connection of connector D12 of the compressor with motor assembly.

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

    NG

    CONNECT SECURELY

    OK

  3. CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH MOTOR ASSEMBLY POWER SOURCE CIRCUIT)


    1. Disconnect the D12 compressor with motor assembly connector.

    2. A005DVSE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Compressor with Motor Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D12-5 (GND) - Body ground Power switch off Below 1 Ω

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D12-6 (IG1) - D12-5 (GND) Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the compressor with motor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

    6. Reconnect the D12 compressor with motor assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      DTC P3108-536 is output. A
      DTC P3108-536 is not output. B

    5. Turn the power switch off.


    B

    CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - COMPRESSOR WITH MOTOR) Click here

    A

  5. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - COMPRESSOR WITH MOTOR)


    1. Disconnect the A22 hybrid vehicle control ECU connector.

    2. Disconnect the D12 compressor with motor assembly connector.

    3. Turn the power switch on (IG).

    4. A005B10E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)
      *b

      Front view of wire harness connector

      (to Compressor with Motor Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A22-10 (CLK) - Body ground Power switch on (IG) Below 1 V
      A22-8 (ETI) - Body ground Power switch on (IG) Below 1 V
      A22-9 (ITE) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector and the compressor with motor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A22-10 (CLK) - D12-1 (CLK) Power switch off Below 1 Ω
      A22-8 (ETI) - D12-3 (DOUT) Power switch off Below 1 Ω
      A22-9 (ITE) - D12-2 (DIN) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A22-10 (CLK) or D12-1 (CLK) - Body ground and other terminals Power switch off 10 kΩ or higher
      A22-8 (ETI) or D12-3 (DOUT) - Body ground and other terminals Power switch off 10 kΩ or higher
      A22-9 (ITE) or D12-2 (DIN) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Reconnect the D12 compressor with motor assembly connector.

    8. Reconnect the A22 hybrid vehicle control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HYBRID VEHICLE CONTROL ECU


    1. Disconnect the D12 compressor with motor assembly connector.

    2. A005BAGE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Compressor with Motor Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D12-3 (DOUT) - Body ground Power switch off 10 kΩ or higher

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D12-1 (CLK) - Body ground Power switch on (IG) 11 to 14 V
      D12-2 (DIN) - Body ground Power switch on (IG) 11 to 14 V
      D12-3 (DOUT) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the compressor with motor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

    6. Reconnect the D12 compressor with motor assembly connector.


    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    OK

  7. CHECK COMPRESSOR WITH MOTOR ASSEMBLY


    1. Disconnect the A22 hybrid vehicle control ECU connector.

    2. A005CCHE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A22-10 (CLK) - Body ground Power switch off 10 kΩ or higher
      A22-9 (ITE) - Body ground Power switch off 10 kΩ or higher

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A22-8 (ETI) - Body ground Power switch on (IG) 11 to 14 V
      A22-10 (CLK) - Body ground Power switch on (IG) Below 1 V
      A22-9 (ITE) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

    6. Reconnect the A22 hybrid vehicle control ECU connector.


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPLACE COMPRESSOR WITH MOTOR ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - COMPRESSOR WITH MOTOR)


    1. Disconnect the A22 hybrid vehicle control ECU connector.

    2. Disconnect the D12 compressor with motor assembly connector.

    3. Turn the power switch on (IG).

    4. A005BT3E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)
      *b

      Front view of wire harness connector

      (to Compressor with Motor Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A22-11 (STB) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A22-11 (STB) - D12-4 (STBI) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A22-11 (STB) or D12-4 (STBI) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Reconnect the D12 compressor with motor assembly connector.

    8. Reconnect the A22 hybrid vehicle control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HYBRID VEHICLE CONTROL ECU


    1. Disconnect the D12 compressor with motor assembly connector.

    2. A005BALE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Compressor with Motor Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D12-4 (STBI) - Body ground Power switch off 10 kΩ or higher

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D12-4 (STBI) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the compressor with motor assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

    6. Reconnect the D12 compressor with motor assembly connector.


    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    OK

  10. CHECK COMPRESSOR WITH MOTOR ASSEMBLY


    1. Disconnect the A22 hybrid vehicle control ECU connector.

    2. A005CZYE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A22-11 (STB) - Body ground Power switch off 10 kΩ or higher

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A22-11 (STB) - Body ground Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    5. Turn the power switch off.

    6. Reconnect the A22 hybrid vehicle control ECU connector.


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPLACE COMPRESSOR WITH MOTOR ASSEMBLY Click here