HYBRID CONTROL SYSTEM, Diagnostic DTC:P1606-308, P1606-317

DTC Code DTC Name
P1606-308 Collision has been detected or Collision Sensor Connection (Open)
P1606-317 Collision has been detected or Collision Sensor Connection (Open)

DTC SUMMARY


  1. MALFUNCTION DESCRIPTION

    The EV control ECU and airbag ECU detect that a collision has occurred and shut off the system main relay.

    The cause of this DTC may be one of the following:


    • Collision is detected

    • Detection sensor system malfunction


      • Airbag system malfunction

      • Communication malfunction between airbag ECU and EV control ECU

      • EV control ECU communication malfunction

DESCRIPTION

The EV control ECU receives a signal that indicates a collision from the airbag ECU assembly to detect a collision. After detecting a collision, the EV control ECU shuts off the high voltage systems for safety.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1606-308 Collision has been detected or Collision Sensor Connection (Open)

Collision detection

A block signal is received from the airbag ECU assembly.

(1 trip detection logic)

  • Airbag ECU assembly

  • Airbag system

  • FC stack assembly

Master Warning Light:

Comes on
P1606-317 Collision has been detected or Collision Sensor Connection (Open)

Collision detection

Multiple wiring malfunctions occur simultaneously.

(1 trip detection logic)

  • Airbag system

  • FC stack assembly

Master Warning Light:

Comes on

Tech Tips

If P1606-308 or 317 is output, the hybrid system cannot be started unless the DTCs are cleared using the GTS.

Related Data List
DTC No. Data List
P1606-308

  • Collision Signal (Airbag)

  • Normal Signal for A/B ECU
P1606-317

CAUTION / NOTICE / HINT

Note

When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).

Tech Tips

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


  1. Turn the power switch on (IG) and wait for 5 seconds or more.

PROCEDURE


  1. CHECK VEHICLE FOR COLLISION DAMAGE


    1. Check the vehicle condition.

      Result
      Result Proceed to
      The vehicle is not damaged, and the airbags have not deployed. A
      The vehicle is damaged, or any of the airbags have deployed. B

    B

    CHECK VEHICLE CONDITION Click here

    A

  2. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

    4. Check for DTCs.


      Powertrain > EV > Trouble Codes
      Result
      Result Proceed to
      P0A1D is output at the same time A
      Other than above B

    5. Turn the power switch off.


    A

    GO TO DTC CHART (P0A1D) Click here

    B

  3. CHECK INFORMATION CODE (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

    4. Access the freeze frame data of DTC P1606 and read the INF code.

      Result
      Result Proceed to
      INF code 308 is output. A
      INF code 317 is output. B

    5. Turn the power switch off.


    B

    CHECK DTC OUTPUT (SRS AIRBAG) Click here

    A

  4. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

    4. Check for DTCs.


      Powertrain > EV > Trouble Codes
      Result
      Result Proceed to
      P3107-213, P3107-214, U0151-763, U0110-160 or U0110-657 is output at the same time. NEXT

    5. Turn the power switch off.


    NEXT

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

  5. CHECK DTC OUTPUT (SRS AIRBAG)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.

    4. Check for DTCs.


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      DTCs related to SRS airbag are output. NEXT

    5. Turn the power switch off.


    NEXT

    GO TO DTC CHART (AIRBAG SYSTEM) Click here

  6. CHECK VEHICLE CONDITION


    1. Check the left and right doors and rocker panels for any damage that requires sheet metal repair or replacement.

      B000ZTPC01
      *a Door *b Rocker Panel
      Result
      Result Proceed to
      Damage is present A
      Damage is not present B

    B

    CHECK WHETHER AIRBAG HAS DEPLOYED (FRONT AIRBAG) Click here

    A

  7. CHECK WHETHER AIRBAG HAS DEPLOYED (SIDE AIRBAG)


    1. Check whether the curtain shield airbag assembly LH, curtain shield airbag assembly RH, front seat airbag assembly LH and front seat airbag assembly RH have deployed.

      Tech Tips

      Refer to Parts Location of airbag system.

      Click here

      Result
      Result Proceed to
      Airbag has not deployed. A
      Airbag has deployed. B

    A

    GO TO STEP 9 Click here

    B

    REPLACE FC STACK ASSEMBLY Click here

  8. CHECK WHETHER AIRBAG HAS DEPLOYED (FRONT AIRBAG)


    1. Check whether the horn button assembly, lower No. 1 instrument panel airbag assembly, instrument panel passenger without door airbag assembly and front seat cushion airbag assembly RH have deployed.

      Tech Tips

      Refer to Parts Location of airbag system.

      Click here

      Result
      Result Proceed to
      Airbag has deployed. A
      Airbag has not deployed. B

    A

    GO TO STEP 10 Click here

    B

  9. CHECK EV SYSTEM START


    1. While depressing the brake pedal, press the power switch and check that the EV system turns on (READY).

      Note

      Repeatedly turning the EV system on (READY) could result in a malfunction, so be sure not to turn the EV system on (READY) repeatedly.

      Result
      Result Proceed to
      EV System turns on (READY). A
      EV System does not turn on (READY). B

    A

    END

    B

  10. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

    4. Check for DTCs.


      Powertrain > EV > Trouble Codes
      Result
      Result Proceed to
      DTC U0151-763 (Lost Communication with Airbag Control Module) is not output. A
      DTC U0151-763 (Lost Communication with Airbag Control Module) is also output. B

    5. Turn the power switch off.


    B

    REPLACE FC STACK ASSEMBLY Click here

    A

  11. CHECK DTC OUTPUT (SRS AIRBAG)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.

    4. Check for DTCs.


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      DTC B1000 (Center Airbag Sensor Assembly Malfunction) is not output. A
      DTC B1000 (Center Airbag Sensor Assembly Malfunction) is output. B

    5. Turn the power switch off.


    B

    REPLACE FC STACK ASSEMBLY Click here

    A

  12. READ VALUE USING GTS (FC STACK SHOCK HISTORY)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Data List / FC Stack Shock History

    4. Read the Data List.


      Powertrain > EV > Data List
      Tester Display
      FC Stack Shock History

      Tech Tips


      • If the Data List item "FC Stack Shock History" is ON, even if the FC stack assembly is replaced, the history will not be cleared automatically (will not become OFF). In addition, disconnecting the cable from the negative auxiliary battery terminal will not clear the history either.

      • After replacing the FC stack assembly, use the GTS to perform the utility "FC Stack Shock History Clear".

        Click here

      Result
      Result Proceed to
      "FC Stack Shock History" is OFF. A
      "FC Stack Shock History" is ON. B

    5. Turn the power switch off.


    A

    END

    B

    REPLACE FC STACK ASSEMBLY Click here