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

READ NEXT:

 Basic Inspection

CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by

 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

SEE MORE:

 Inspection

INSPECTION PROCEDURE 1. INSPECT CONSOLE BOX ILLUMINATION LIGHT ASSEMBLY (a) Apply battery voltage to the connector and check the light illumination condition. OK: Measurement Condition Specified Condition Battery positive (+) → 2 (ILL+) Battery negative (-) → 1 (ILL-) Illuminates

 Drive Motor "A" Inverter Performance (P0A78-284)

DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates when the temperature of the inverter for the motor has become abnormal. The cause of this malfunction may be one of the following: Area Main Malfunction Description Step Inverter low-voltage circuit The connectors are not connected

© 2016-2026 Copyright www.lexunx.com