Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Internal Control Module Throttle Position Performance Internal Electronic Failure (P060E49,P061E49)

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Engine & Hybrid System / 2gr-fks (engine Control) / Sfi System / Internal Control Module Throttle Position Performance Internal Electronic Failure (P060E49,P061E49)

MONITOR DESCRIPTION

The ECM monitors the signals received from the No. 1 throttle position sensor and stop light switch assembly. As the ECM monitors the STP signal of the stop light switch assembly and the VTA1 signal of the No. 1 throttle position sensor, if these signals do not correlate, a DTC will be stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P060E49

Internal Control Module Throttle Position Performance Internal Electronic Failure

Either of the following conditions is met (1 trip detection logic):

  • ECM main CPU malfunction.
  • ECM sub CPU malfunction.

ECM

Comes on

DTC stored

SAE Code: P060E

P061E49

Internal Control Module Brake Signal Internal Electronic Failure

Either of the following conditions is met (1 trip detection logic):

  • ECM main CPU malfunction.
  • ECM sub CPU malfunction.

ECM

Comes on

DTC stored

SAE Code: P061E

MONITOR STRATEGY

Related DTCs

P060E: Internal control module throttle position performance

P061E: Internal control module brake signal performance

Required Sensors/Components (Main)

ECM

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

1 second: P060E

13 times: P061E

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

P060E

Monitor runs whenever the following DTCs are not stored

None
P061E

Monitor runs whenever the following DTCs are not stored

None

DMA communication error

Not detected

TYPICAL MALFUNCTION THRESHOLDS

P060E

Difference of main throttle position and sub throttle position

0.3 V or higher
P061E

Stop light switch signal (Main CPU) and stop light switch signal (Sub CPU)

Different

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the Techstream off.
  6. Turn the engine switch off.
  7. Disconnect the Techstream.
  8. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
  9. Connect the cable to the negative (-) battery terminal.
  10. Connect the Techstream to the DLC3.
  11. Turn the engine switch on (IG).
  12. Turn the Techstream on.
  13. Wait 16 seconds or more [A].
  14. Enter the following menus: Powertrain / Engine / Trouble Codes [B].
  15. Read the pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  16. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  17. Input the DTC: P060E49 or P061E49.
  18. Check the DTC judgment result.

    Techstream 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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • [A] to [B]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

CAUTION / NOTICE / HINT

NOTICE:

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.

Click here

HINT:

Read freeze frame data using the Techstream. 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.

READ OUTPUT DTC (DTC P060E49 OR P061E49)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the engine switch off and turn the Techstream off.

(f) Disconnect the Techstream.

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

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

(i) Connect the Techstream to the DLC3.

(j) Turn the engine switch on (IG).

(k) Turn the Techstream on.

(l) Wait 16 seconds or more.

(m) Enter the following menus: Powertrain / Engine / Trouble Codes.

(n) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P060E49 or P061E49 is output

B
A

CHECK FOR INTERMITTENT PROBLEMS

B

REPLACE ECM

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