HYBRID CONTROL SYSTEM, Diagnostic DTC:P3108-535, P3108-536, P3108-538

DTC Code DTC Name
P3108-535 Lost Communication with A/C System Control Module
P3108-536 A/C Amplifier Communication Circuit Malfunction
P3108-538 Lost Communication with A/C System Control Module

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P3108 535 Serial communication error

  • Wire harness or connector

  • With motor compressor assembly

  • Hybrid vehicle control ECU
P3108 536 A/C inverter malfunction
P3108 538 Open in the STB signal circuit

WIRING DIAGRAM

A000XQ2E02
*a with Motor Compressor Assembly
*b Hybrid Vehicle Control ECU

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester 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
      P3108-535, P3108-536, or P3108-538 only is output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      P0ADC-226 Hybrid Battery Positive Contactor Control Circuit High
      P0AE0-228 Hybrid Battery Negative Contactor Control Circuit High

      Tech Tips

      DTC P3108-535 may be stored due to an open circuit in the SMRB or SMRG circuit.


    B

    GO TO DTC CHART Click here

    A

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


    1. A000XH7E01
      *1 Hybrid Vehicle Control ECU

      Check the connections of the hybrid vehicle control ECU connectors.

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

    NG

    CONNECT SECURELY

    OK

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


    1. A000VXG

      Check the connection of the low voltage connector of the with motor compressor assembly.

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

    NG

    CONNECT SECURELY

    OK

  4. CHECK HARNESS AND CONNECTOR (WITH MOTOR COMPRESSOR ASSEMBLY)


    1. A000UL1E01
      *1 Front view of wire harness connector: (to with Motor Compressor Assembly)

      Turn the power switch off.

    2. Disconnect the with motor compressor assembly connector.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E59-1 (GND) - Body ground Power switch off Below 1 Ω

    4. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E59-7 (IG1) - E59-1 (GND) Power switch on (IG) 10 to 14 V

      Note

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK DTC OUTPUT (HV)


    1. Turn the power switch off.

    2. Connect the with motor compressor assembly connector.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the power switch on (READY).

    5. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    6. Check if DTCs are output.

      Result
      Result Proceed to
      P3108-535 is output. A
      P3108-535 is not output and P3108-538 is output. B
      P3108-538 is not output and P3108-536 is output. A

    B

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

    A

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


    1. Turn the power switch off.

    2. A000Y65E01
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Front view of wire harness connector: (to with Motor Compressor Assembly)

      Disconnect connector E58 from the hybrid vehicle control ECU.

    3. Disconnect the with motor compressor assembly connector.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-30 (CLK) - Body ground Power switch on (IG) Below 1 V
      E58-21 (ITE) - Body ground Power switch on (IG) Below 1 V
      E58-32 (ETI) - 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 Switch Condition Specified Condition
      E58-30 (CLK) - E59-5 (CLK) Power switch off Below 1 Ω
      E58-21 (ITE) - E59-3 (DIN) Power switch off Below 1 Ω
      E58-32 (ETI) - E59-6 (DOUT) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      E58-30 (CLK) or E59-5 (CLK) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-21 (ITE) or E59-3 (DIN) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-32 (ETI) or E59-6 (DOUT) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HYBRID VEHICLE CONTROL ECU


    1. A000VIWE01
      *1 Front view of wire harness connector: (to with Motor Compressor Assembly)

      Turn the power switch off.

    2. Connect the hybrid vehicle control ECU connector.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E59-6 (DOUT) - Body ground Power switch off 10 kΩ or higher

    4. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E59-5 (CLK) - Body ground Power switch on (IG) 10 to 14 V
      E59-3 (DIN) - Body ground Power switch on (IG) 10 to 14 V
      E59-6 (DOUT) - Body ground Power switch on (IG) Below 1 V

      Note

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


    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    OK

  8. CHECK WITH MOTOR COMPRESSOR ASSEMBLY


    1. A000TG6E02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)

      Turn the power switch off.

    2. Connect the with motor compressor assembly connector.

    3. Disconnect connector E58 from the hybrid vehicle control ECU.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E58-30 (CLK) - Body ground Power switch off 10 kΩ or higher
      E58-21 (ITE) - Body ground Power switch off 10 kΩ or higher

    5. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-32 (ETI) - Body ground Power switch off 10 to 14 V
      E58-30 (CLK) - Body ground Power switch off Below 1 V
      E58-21 (ITE) - Body ground Power switch off 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.


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPLACE WITH MOTOR COMPRESSOR ASSEMBLY Click here

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


    1. Turn the power switch off.

    2. A000Y65E02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Front view of wire harness connector: (to with Motor Compressor Assembly)

      Disconnect connector E58 from the hybrid vehicle control ECU.

    3. Disconnect the with motor compressor assembly connector.

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-31 (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 Switch Condition Specified Condition
      E58-31 (STB) - E59-2 (STB1) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      E58-31 (STB) or E59-2 (STB1) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK HYBRID VEHICLE CONTROL ECU


    1. A000YK7E01
      *1 Front view of wire harness connector: (to with Motor Compressor Assembly)

      Turn the power switch off.

    2. Connect the hybrid vehicle control ECU connector.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E59-2 (STB1) - Body ground Power switch off 10 kΩ or higher

    4. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E59-2 (STB1) - Body ground Power switch on (IG) Below 1 V

      Note

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


    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    OK

  11. CHECK WITH MOTOR COMPRESSOR ASSEMBLY


    1. A000V38E02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)

      Turn the power switch off.

    2. Connect the with motor compressor assembly connector.

    3. Disconnect connector E58 from the hybrid vehicle control ECU.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E58-31 (STB) - Body ground Power switch off 10 kΩ or higher

    5. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-31 (STB) - Body ground Power switch on (IG) 10 to 14 V

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPLACE WITH MOTOR COMPRESSOR ASSEMBLY Click here