U441E AUTOMATIC TRANSMISSION / TRANSAXLE  AUTOMATIC TRANSAXLE SYSTEM  CHECK MODE PROCEDURE  


DESCRIPTION


a.

Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1-trip detection logic.



CHECK MODE PROCEDURE


a.

Make sure that the following conditions are met:

i.

The battery voltage is 11 V or more.


ii.

The throttle valve is fully closed.


iii.

The shift lever is in P or N.


iv.

The A/C is off.



b.

Turn the ignition switch off.


c.

Connect the GTS to the DLC3.


d.

Turn the ignition switch to ON.


e.

Turn the GTS on.


f.

Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.

Powertrain > Engine and ECT > Utility
Tester Display
Check Mode
50005 234 1001

g.
C140840
0.292,0.729 0.594,1.01 0.302,0.281 10 On 0.302,1.5 0.698,1.76 0.396,0.26 10 Off 2.021,0.448 3.083,0.688 1.063,0.24 10 0.13 seconds 1.906,1.771 2.938,2.01 1.031,0.24 10 0.13 seconds

Change the ECM to check mode. Make sure the MIL flashes as shown in the illustration.

NOTICE:

All DTCs and freeze frame data will be cleared if: 1) the GTS is used to change the ECM from normal mode to check mode or vice versa; or 2) during check mode, the ignition switch is turned from ON to on ACC or off.

Before entering check mode, make a note of the DTCs and freeze frame data.



h.

Start the engine. The MIL should turn off after the engine starts.


i.

Perform Monitor Drive Pattern for the ECT test.

Click hereDrivetrain>U441E AUTOMATIC TRANSMISSION / TRANSAXLE>AUTOMATIC TRANSAXLE SYSTEM>MONITOR DRIVE PATTERN

(Or, simulate the conditions of the malfunction described by the customer.)


j.

After simulating the malfunction conditions, use the GTS to check the DTC and freeze frame data.