ET Status Screen-continued -807640253

TM 9-2320-312-24-2

Troubleshooting Section

4. If ET indicates "Bad Vehicle Speed", the vehicle

speed signal is erratic or intermittent. This relates

to cruise control only.

If ET indicates "Vehicle Speed < Limit", the

vehicle speed signal was lost at least briefly. This

pertains to cruise control only.

If ET indicates "Vehicle Speed >= Limit", the

vehicle speed signal exceeded the programmed

Idle/PTO vehicle speed limit or the vehicle speed

limit is erratic or intermittent. This pertains to idle

control and PTO control only.

If ET indicates a "Set SW Timeout", then either

the set switch was depressed by the operator

longer than 15 seconds, or the circuit has a

short. The cruise control switch must be turned

off and then turned on before the cruise control

will work.

If ET indicates a "Res SW Timeout", then either

the set switch was depressed by the operator

longer than 15 seconds, or the circuit has a

short. The cruise control switch must be turned

off and then turned on before the cruise control

will work.

Perform the following diagnostic procedure in

order:

a. Inspect the vehicle speed sensor for debris on

the sensor. Inspect the vehicle speed circuit.

b. Check the vehicle speed that is displayed

on the ET status screen while the vehicle

is parked. Adjust the engine rpm up and

down. Also check the vehicle speed while the

vehicle is being driven in order to determine

that the vehicle speed that is indicated

by ET does not vary significantly from

the vehicle speed that is indicated by the

speedometer. If the problem is not apparent,

refer to Troubleshooting, "Vehicle Speed and

Speedometer Circuit - Test".

c. Inspect both ECM connectors for moisture.

Refer to Troubleshooting, "Electrical

Connectors - Inspect".

Note: Full Feature systems require the transmission

style parameter to match the switches that are

installed in the vehicle. The Basic system requires

the status of the clutch switch and the neutral switch

to be reviewed.