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.
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Clear the DTCs.
Click here
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Switch the ECM from normal mode to check mode using the Techstream.
Click here
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Perform a simulation test.
Click here
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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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Disassembly
DISASSEMBLY 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 OUTER MIRROR LH Click here 2. REMOVE SIDE TURN SIGNAL LIGHT ASSEMBLY LH Click here 3. REMOVE SIDE TELEVISION CAMERA ASSEMBLY LH (w/
Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage. Standard voltage: 11 to 14 V (power switch off) If the voltage is below 11 V, recharge or replace the auxiliary battery.
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