TM 10-3930-675-24-1
TROUBLESHOOTING PROCEDURES (NON-ERROR CODE) - CONTINUED
0007 00
Table 2. Electrical Troubleshooting Procedures (Non-Error Code) - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
22. Driver's ECS Display Screen Will Not 1. Check circuit breaker F31 for Reset circuit breaker as required.
Display.
trip.
2. Check voltage (24V) at X150 a. If no voltage (24V) is found at
pin 3 with the ignition on.
X150 pin 3, check circuit
breaker F31 and continuity of
wires A303 and 303 (WP 0048
00-32).
b. Repair or replace damaged
wires or connectors (WP 0113
00).
c. Replace damaged or faulty
circuit breaker (WP 0074 00).
3. Check voltage (24V) at X152 a. If no voltage is found at X152
pin 3 with the ignition on.
pin 3, check continuity of wire
A1503B (WP 0048 00-2).
b. Repair or replace damaged
wires or connectors (WP 0113
00).
4. Check voltage. Gain access to a. If no voltage is found at X795
the ECS display screen in the
pin 7 or 8, check continuity of
steering column console (WP
wires 1523A and 1523B (WP
0081 00). Unplug X795 from
0048 00-2).
the ECS display screen. Check b. Repair or replace damaged
voltage (24V) at X795 pins 7
wires or connectors (WP 0113
and 8 with the ignition on.
00).
c. If voltage (24V) is found,
replace the ECS display screen
(WP 0081 00).
23. After Key "On" Functions Not Working (No 1. Check for proper function. a. If all of these functions work
Crank, Display, etc.).
With the master switch turned
properly, continue with step 4.
on and the ignition turned off, b. If none of these functions work
activate the turn signals/
properly, continue with step 2.
emergency flashers and cab
interior light.
0007 00-54
