Dtc P0606 Ecm / Pcm Processor

Engine Hybrid System. Yaris. Ncp93, 131
1Nz-Fe Engine Control. Yaris. Ncp93, 131

DESCRIPTION

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

INSPECTION PROCEDURE

CHECK ANY OTHER DTCS OUTPUT

CHECK DTC (P0136, P0137 OR P0138)

CHECK FOR EXHAUST GAS LEAK

PERFORM CONFIRMATION DRIVING PATTERN

CHECK DTC (P0136, P0137 OR P0138)

INSPECT ECM

DTC P0606 ECM / PCM Processor


DESCRIPTION

The ECM continuously monitors its internal processors (CPUs) and heated oxygen sensor (HO2S) transistors. This self-check ensures that the ECM is functioning properly.

DTC No.
DTC Detection Condition
Trouble Area
P0606
Either condition is met:
(1 trip detection logic)
  1. ECM CPUs malfunction
  2. HO2S transistor malfunction
  1. Exhaust gas leak
  2. HO2 sensor
  3. ECM

MONITOR STRATEGY


HO2 Transistor
Related DTCs
P0606: Control module performance
Required sensors / components (Main)
ECM
Required sensors / components (Related)
HO2 sensor
Frequency of operation
Continuous
Duration
60 seconds
MIL operation
immediate
Sequence of operation
None

Range Check
Related DTCs
P0606: ECM range check
Required sensors / components (Main)
ECM
Required sensors / components (Related)
-
Frequency of operation
Continuous
Duration
16 seconds
MIL operation
immediate
Sequence of operation
None

For Mexico Models
Related DTCs
P0606: Control module
Required sensors / components (Main)
ECM
Required sensors / components (Related)
APP sensor, TP sensor, Brake switch, Cruise control
Frequency of operation
Continuous
Duration
1 second
MIL operation
immediate
Sequence of operation
None

TYPICAL ENABLING CONDITIONS


HO2 Transistor
Monitor runs whenever following DTCs not present
None
Engine
Running
Estimated HO2 sensor temperature
450 to 750°C (842 to 1382°F)

Range Check
Monitor runs whenever following DTCs not present
None

For Mexico Models
Monitor runs whenever following DTCs not present
None

TYPICAL MALFUNCTION THRESHOLDS


HO2 Transistor
HO2 sensor transistors
Fail

Range Check
Either condition A or B is met
-
A. DMA communication
No response
B. Watchdog from monitoring processor
Not toggle

For Mexico Models
Difference of main APP and sub APP
0.3 V or more
Difference of main TP and sub TP
0.3 V or more
Difference of main brake switch signal and sub brake switch signal
Different

CONFIRMATION DRIVING PATTERN


Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0606 Ecm / Pcm Processor

  1. Stop the engine for 30 minutes or more [A].
  2. Connect the Techstream to the DLC3.
  3. Turn the ignition switch to ON and turn the Techstream on [B].
  4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Turn the ignition switch to ON and turn the Techstream on [C].
  7. Start the engine and wait 2 minutes [D].
  8. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher [E].
  9. Idle the engine for 1 minute [F].
  10. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle [G].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  11. Drive the vehicle at 56 to 80 km/h (35 to 50 mph) for 5 minutes or more [H].
    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.
  12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [I].
  13. Read pending DTCs.
    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. 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: P0606, P0136, P0137, P0138.
  16. Check the DTC judgment result.

    Techstream Display
    		Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
    3. If the result shows INCOMPLETE or N/A, perform steps [E] through [I] again.
  17. If no pending DTC is output, perform a universal trip and check for permanent DTCs (YARIS_NCP93 RM000000PDK0QGX.html).
    HINT:
    1. If a permanent DTC is output, the system is malfunctioning.
    2. If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

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

  1. Read DTCs.

    Result
    Result
    		Proceed to
    P0606, and P0136, P0137 or P0138 are output
    		A
    P0606 is output
    		B


B
Go to step 3
A


2.CHECK DTC (P0136, P0137 OR P0138)

  1. Check the P0136, P0137 or P0138 flow chart.

    HINT:
    1. If P0136 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    2. If P0137 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    3. If P0138 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    4. If DTC P0606 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).


NEXT
Go to step 6

3.CHECK FOR EXHAUST GAS LEAK

  1. Allow the engine to idle and rev the engine.

  1. Check for exhaust gas leaks around the heated oxygen sensor.
    If any exhaust gas leaks are present, repair them and proceed to step 4 of "Perform Confirmation Driving Pattern". If no exhaust gas leaks are present, proceed to step 4 of "Perform Confirmation Driving Pattern".

    HINT:
    1. If no exhaust gas leaks are present, a malfunction in the heated oxygen sensor circuit is suspected.
    2. If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor.

NEXT


4.PERFORM CONFIRMATION DRIVING PATTERN

Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan). Dtc P0606 Ecm / Pcm Processor

  1. Clear DTC (YARIS_NCP93 RM000000PDK0QGX.html).

  1. Connect the Techstream to the DLC3.

  1. Start the engine.

  1. Turn the Techstream on.

  1. Warm up the engine until the engine coolant temperature becomes 75° (167°F) or more.

  1. Perform the driving pattern.

    CAUTION:
    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    1. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle.

    2. Drive the vehicle between 60 and 80 km/h (35 and 50 mph) for 5 minutes.

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

  1. Read DTCs.

    Result
    Result
    		Proceed to
    DTC P0606, and P0136, P0137 or P0138 are output
    		A
    Only DTC P0606 is output
    		B
    DTC is not output
    		C


B
REPLACE ECM (YARIS_NCP93 RM000001CN002AX.html)

C
Go to step 6
A


5.CHECK DTC (P0136, P0137 OR P0138)

  1. Check the P0136, P0137 or P0138 flow chart.

    HINT:
    1. If P0136 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    2. If P0137 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    3. If P0138 is output, troubleshoot for that DTC first (YARIS_NCP93 RM000000TEO09JX.html). Then proceed to step 6 of "INSPECT ECM".
    4. If DTC P0606 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).

NEXT


6.INSPECT ECM

  1. Clear the DTC (YARIS_NCP93 RM000000PDK0QGX.html).

  1. Stop the engine and wait for 30 minutes.

  1. Connect the Techstream to the DLC3.

  1. Start the engine and allow it to idle for 2 minutes.

  1. Turn the Techstream on.

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

  1. Read DTCs.

    Result
    Result
    		Proceed to
    DTC P0606 is output
    		A
    DTC is not output
    		B


B
END
A

REPLACE ECM (YARIS_NCP93 RM000001CN002AX.html)