Lexus NX: 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:

 Camshaft Position Sensor Circuit (P0340,P0342,P0343)

DESCRIPTION The camshaft position sensor (VV1 signal) consists of a magnet and MRE (Magneto-Resistive Element). The camshaft has a timing rotor for the camshaft position sensor. When the camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic fiel

 Removal

REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precoution thoroughly before serving. Click here NOTICE: After turning the power switch off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal. Click here 2. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY C

© 2016-2025 Copyright www.lexunx.com