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Check Mode Procedure








2GR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: CHECK MODE PROCEDURE

CHECK MODE PROCEDURE
HINT: The Techstream only:
Compared to the normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode.
NOTICE:
All the stored DTCs and freeze frame data are erased if: 1) the ECM is changed from normal mode to check mode or vice versa; or 2) the power switch is turned from on (IG) to on (ACC) or off while in check mode. Before changing modes, always check and make a note of any DTCs and freeze frame data.

1. CHECK MODE PROCEDURE (Using Techstream)
(a) Check and ensure the following condition:
(1) Battery positive voltage 11 V or more.
(2) Throttle valve fully closed.
(3) Transmission in the P or N position.
(4) A/C switched off.
(b) Turn the power switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the power switch on (IG).
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.
(g) Switch the ECM from normal mode to check mode.





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

(i) Start the engine.
(j) Make sure that the MIL turns off.
(k) Simulate the conditions of the malfunction described by the customer.
(l) Check DTCs and freeze frame data using the Techstream.
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