SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P1607

DTC Code DTC Name
P1607 Cruise Control Input Processor

DESCRIPTION

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P1607 Cruise Control Input Processor ECM CPUs malfunction (1 trip detection logic). ECM Comes on DTC stored

MONITOR STRATEGY

Required Sensors/Components (Main) ECM
Required Sensors/Components (Related) Cruise control
Frequency of Operation Continuous

TYPICAL ENABLING CONDITIONS

Cruise control Forbiddance
DMA communication error Not detected

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the GTS off.

  5. Turn the engine switch off.

  6. Disconnect the GTS.

  7. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

  8. Connect the cable to the negative (-) battery terminal.

  9. Connect the GTS to the DLC3.

  10. Turn the engine switch on (IG) and turn the GTS on.

  11. Wait 16 seconds or more.

  12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

  13. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  15. Input the DTC: P1607.

  16. Check the DTC judgment result.

    GTS Display Description
    NORMAL
    • DTC judgment completed

    • System normal

    ABNORMAL
    • DTC judgment completed

    • System abnormal

    INCOMPLETE
    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    N/A
    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

CAUTION / NOTICE / HINT

Note

After turning engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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Tech Tips

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine and ECT > Trouble Codes
    5. Turn the engine switch off.

      Result
      Proceed to
      NEXT

    NEXT
  2. READ OUTPUT DTC (DTC P0657)


    1. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the engine switch on (IG).

    4. Wait 10 seconds or more.

    5. Turn the engine switch off.

    6. Wait 15 seconds or more.

    7. Connect the GTS to the DLC3.

    8. Turn the engine switch on (IG).

    9. Turn the GTS on.

    10. Wait 5 seconds or more.

    11. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes
    12. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P0657 is output B

    A
    B