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

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

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 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever a DTC is detected, the headlight ECU sub-assembly or front recognition camera stores the current vehicle (sensor) state as freeze frame data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn t

 Removal

REMOVAL PROCEDURE 1. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here 2. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY (a) Using SST, hold the crankshaft pulley assembly. SST: 09213-54015 SST: 09330-00021 HINT: Part number of installation bolt for SST (crankshaft pulley holding tool): 91551-806

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