HYBRID CONTROL SYSTEM, Diagnostic DTC:P3108-536

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

DESCRIPTION


DTC No. DTC Detection Condition Trouble Area
P3108-536

Communication error (air conditioning system to hybrid control system)

Error in communication data from the A/C inverter

Although an air conditioning inverter shutdown signal is sent, the air conditioning inverter does not shutdown

(1 trip detection logic)

  • Wire harness or connector

  • Compressor with motor assembly

  • Power management control ECU
Related Data List
DTC No. Data List
P3108-536

  • A/C Consumption Pwr

  • Aircon Gate Status

WIRING DIAGRAM

A000QU3E41
*a from LH-IG1 RLY1 Relay
*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 DTC OUTPUT (AIR CONDITIONER)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.

    4. Check if DTCs related to the air conditioning system (A/C) are output.

      Result
      Result Proceed to
      DTCs related to A/C are not output. A
      DTCs related to A/C are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART (AIR CONDITIONING SYSTEM) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)


    1. B002B9CE01
      Text in Illustration
      *A for LHD
      *B for RHD

      Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors Click here.

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

    NG

    CONNECT SECURELY

    OK

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


    1. A000PBIE02

      Check the connection of the F16 compressor with motor assembly connector Click here.

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

    NG

    CONNECT SECURELY

    OK

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


    1. Disconnect the F16 compressor with motor assembly connector.

    2. A000QCEE02
      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 Switch Condition Specified Condition
      F16-5 (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 Switch Condition Specified Condition
      F16-6 (IG1) - F16-5 (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 F16 compressor with motor assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - COMPRESSOR WITH MOTOR ASSEMBLY)


    1. Disconnect the A36 power management control ECU connector.

    2. Disconnect the F16 compressor with motor assembly connector.

    3. Turn the power switch on (IG).

    4. A000S9CE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management 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 Switch Condition Specified Condition
      A36-16 (CLK) - Body ground Power switch on (IG) Below 1 V
      A36-17 (ITE) - Body ground Power switch on (IG) Below 1 V
      A36-18 (ETI) - Body ground Power switch on (IG) Below 1 V
      A36-19 (STB) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the power management 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 Switch Condition Specified Condition
      A36-16 (CLK) - F16-1 (CLK) Power switch off Below 1 Ω
      A36-17 (ITE) - F16-2 (DIN) Power switch off Below 1 Ω
      A36-18 (ETI) - F16-3 (DOUT) Power switch off Below 1 Ω
      A36-19 (STB) - F16-4 (STBI) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Switch Condition Specified Condition
      A36-16 (CLK) or F16-1 (CLK) - Body ground and other terminals Power switch off 10 kΩ or higher
      A36-17 (ITE) or F16-2 (DIN) - Body ground and other terminals Power switch off 10 kΩ or higher
      A36-18 (ETI) or F16-3 (DOUT) - Body ground and other terminals Power switch off 10 kΩ or higher
      A36-19 (STB) or F16-4 (STBI) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Reconnect the F16 compressor with motor assembly connector.

    8. Reconnect the A36 power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK POWER MANAGEMENT CONTROL ECU


    1. Disconnect the F16 compressor with motor assembly connector.

    2. A000P5CE01
      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 Switch Condition Specified Condition
      F16-3 (DOUT) - Body ground Power switch off 10 kΩ or higher
      F16-4 (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 Switch Condition Specified Condition
      F16-1 (CLK) - Body ground Power switch on (IG) 11 to 14 V
      F16-2 (DIN) - Body ground Power switch on (IG) 11 to 14 V
      F16-3 (DOUT) - Body ground Power switch on (IG) Below 1 V
      F16-4 (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 F16 compressor with motor assembly connector.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

  7. CHECK COMPRESSOR WITH MOTOR ASSEMBLY


    1. Disconnect the A36 power management control ECU connector.

    2. A000PXAE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A36-16 (CLK) - Body ground Power switch off 10 kΩ or higher
      A36-17 (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 Switch Condition Specified Condition
      A36-16 (CLK) - Body ground Power switch on (IG) Below 1 V
      A36-17 (ITE) - Body ground Power switch on (IG) Below 1 V
      A36-18 (ETI) - Body ground Power switch on (IG) 11 to 14 V
      A36-19 (STB) - Body ground Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the power management 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 A36 power management control ECU connector.


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPLACE COMPRESSOR WITH MOTOR ASSEMBLY Click here