Lexus ES manuals

Lexus ES: Check Mode Procedure

CHECK MODE PROCEDURE

HINT:

Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect malfunctions that cannot be detected in normal mode.

NOTICE:

All the stored DTCs and freeze frame data are cleared if: 1) the ECM is changed from normal mode to check mode or vice versa; or 2) the engine switch is turned from on (IG) to ACC or off while in check mode. Before changing modes, always check and note any DTCs and freeze frame data.

CHECK MODE PROCEDURE

(a) Check and ensure the following conditions:

(1) Battery voltage is 11 V or higher.

(2) Throttle valve is fully closed.

(3) Shift lever is in P or N.

(4) A/C switch is off.

(b) Turn the engine switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the engine switch on (IG).

(e) Turn the Techstream on.

(f) Enter the following menus: Powertrain / Engine / Utility / Check Mode.

Powertrain > Engine > Utility

Tester Display

Check Mode

(g) Switch the ECM from normal mode to check mode.

(h) Check that the MIL flashes as shown in the illustration.

(i) Start the engine.

(j) Check that the MIL turns off.

(k) Simulate the conditions of the malfunction described by the customer.

(l) Check the DTCs and freeze frame data using the Techstream.

READ NEXT:

 Fail-safe Chart

FAIL-SAFE CHART If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily or stops fuel injection. DTC Code Component Fail-Safe Operat

 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th

 Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART SFI System DTC No. Detection Item MIL Memory Note Link P001013 A Camshaft Position Actuator Bank 1 Circuit Open Comes on DTC stored SAE Code: P00

SEE MORE:

 Initialization

INITIALIZATION NOTICE: Initialization can be confirmed through the tire pressure warning light. If the engine switch is turned off during initialization, the tire pressure warning ECU and receiver memorizes that initialization was being performed. Therefore, it is not necessary to perform the i

 Noise Occurs

PROCEDURE 1. CHECK NOISE CONDITION (a) Check from which direction the noise comes (front left or right, or rear left or right). OK: The location of the noise source can be determined. NG GO TO STEP 3 OK 2. CHECK SPEAKERS (a) Check the installation condi

© 2016-2025 Copyright www.lexguide.net