Test Step 3. Check Neutral Switch Status on ET

334

TM 9-2320-312-24-2

Troubleshooting Section

Test Step 3. Check Neutral Switch Status

B. For an intermittent Idle Kickout, talk to the driver

on ET.

in order to determine the conditions when the

kickout occurs. A topic of examination could be

Table 179

the following example:

Neutral Switch Status Table

Specific engine rpm

Switch Position

Switch Status

Circuit

Start the engine. Duplicate these conditions and

The transmission is in

Closed

set the idle rpm. Operate the vehicle in idle until

Neutral.

the problem reoccurs.

The transmission is in

OFF

Open

Gear.

Note: The status screen will only indicate the last

kickout. The status screen will lose this information

if the ignition key switch is turned OFF.

A. Access the ET status screen.

C. Connect ET and check the status screen for

B. Turn the ignition key switch to the ON position.

the last cause of the kickout. Refer to Tables

175, 176, 177, and 178 for an explanation of the

C. Shift the transmission into the Neutral position

status parameter.

while the status of the neutral switch is being

observed. Also, shift out of Neutral while the

D. If the status screen is blank, then either there

status of the neutral switch is being observed.

was no kickout of the cruise control, or the

power to the ECM was turned OFF before the

Note: If the status indicates "Not Installed", check

information could be read. Repeat this test step.

the programming of the "Transmission Style"

Parameter. The "Transmission Style" must be

Note: A status screen that is blank indicates "No

programmed to "Automatic Option 3" or "Automatic

Occurrence".

Option 4".

Expected Result:

RESULT 1 The ET Kickout Status displays the

The switch status changes per the information in

following result:

Table 179.

"Neutral"

Results:

RESULT 2 The ET Kickout Status displays the

Yes The switch is operating normally. STOP.

following result:

Intermittent Problem Suspected Proceed to Test

"Switch Turned Off"

Step 4.

RESULT 3 The ET Kickout Status displays the

No The ECM is not reading the switch status

following result:

change. Proceed to Test Step 5.

"Cruise Control PAUSE Switch"

Test Step 4. Operate the Vehicle and

Check the Kickout Status Parameter.

RESULT 4 The ET Kickout Status displays the

following result:

A. For an intermittent Cruise Control Kickout, talk to

the driver in order to determine the conditions

"Brake"

when the kickout occurs. Topics of examination

could be the following examples:

RESULT 5 The ET Kickout Status displays the

following result:

specific speed

"Vehicle Speed < Limit"

road conditions

"Bad Vehicle Speed"

weather conditions

"Vehicle Speed ≥ Limit"

Take the vehicle for a road test in order to

duplicate these conditions and set the cruise

RESULT 6 The ET Kickout Status displays the

control. Operate the vehicle in cruise control until

following result:

the problem reoccurs.