Lull 944E-42 Service Manual - Manual (Page 664)

Electrical System
9.154 Model 644E-42/944E-42 Rev. 6/04
9.10.6 Transmission Temperature Warning Indicator Troubleshooting
0000000
RPM X 100
5
10
15
30
20
25
F
1/2
E 104
176
80
248
120 °C
°F
D
r/min
Check transmission fluid level.
Check radiator for plugged
condition or debris.
Transmission temperature
warning indicator stays ON
while operating and alarm
sounds.
Repair as needed.
Disconnect harness at
transmission temperature
switch. Indicator light
should go out.
Replace transmission
temperature switch
and retest system.
If OK
If OK
Check circuit for grounded
wire [D5A] (GRN).
If grounded, repair wire.
Refer to page 9.48 or 9.50.
Replace dash panel.
If circuit tests OK
Stop vehicle, place
transmission in Neutral (N)
and idle engine for
one (1) minute to allow
transmission oil to cool.
Not OK
Transmission
Temperature
Warning Indicator
MU4290
Not
OK
Not
OK
Before troubleshooting any
electrical circuit, ALWAYS begin
by checking the following:
1. Fuses.
2. Battery for proper charge.
3. All connections relating to
circuit are clean and tight.
4. All grounding straps are intact
and securely fastened, refer to
Section 9.1.12, “General
Overview (Vehicle Ground
Strap Locations).”
5. Check dash panel bulbs for
proper function.