TM 5-2350-378-23&P
0021
APPARENT HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM PROBLEM - Continued
STEP
16.
Check for 28 VDC at master relay (input) side of HDC circuit breaker (Figure 17).
"Y" CONNECTOR
(7982404)
IN-LINE CONNECTOR
(8741492)
WIRING HARNESS
12357211
FROM MASTER RELAY
10
37-137 TO TRAILER RECEPTACLE & TROUBLE LIGHT
B1
HDC CIRCUIT
1070
HDC CONTROL BOX POWER (TO CABLE W1J1-A)
BREAKER
B2
10
1070
LEAD ASSEMBLY
(12496957)
B3
LEAD ASSEMBLY
A1
A2
(12496958)
A3
X1
X2
T01917HDC
Figure 17.
Hydraulic Diagnostic Center (HDC) Simplified Power Input Circuit.
CONDITION/INDICATION
Is 28 VDC present at master relay (input) side of HDC circuit breaker?
DECISION
YES - Go to Step (18).
NO - Go to Step (17).
03/15/2011Rel(1.8)root(tswp)wpno(T00019)