Lexus NX manuals

Lexus NX: Check For Intermittent Problems

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (engine Control) / Sfi System / Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS

HINT:

Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.

  1. Clear the DTCs.

    Click here

  2. Switch the ECM from normal mode to check mode using the Techstream.

    Click here

  3. Perform a simulation test.

    Click here

  4. Check and wiggle the harness(es), connector(s) and terminal(s).

    Click here

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 Basic Inspection

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 Registration

REGISTRATION CAUTION / NOTICE / HINT NOTICE: The Vehicle Identification Number (VIN) must be input into a replacement ECM. HINT: The VIN is a 17-digit alphanumeric vehicle identification number. The T

 Initialization

INITIALIZATION Inspection After Repair Perform learning value reset and idle learning after replacing or servicing parts related to engine operation. Details on procedures required are indicated by an

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 Removal

REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY Click here 2. REMOVE REAR DECK FLOOR BOX Click here 3. REMOVE DECK FLOOR BOX LH Click here 4. PRECAUTIO

 Power Steering Warning Light Circuit

DESCRIPTION The power steering ECU is connected to the combination meter via CAN communication. If any of the following conditions are detected, the power steering warning light remains on. The circuit that supplies power source voltage to the power steering ECU assembly (terminal IG) is open.

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