TM 5-2350-378-23&P
0021
APPARENT HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM PROBLEM - Continued
STEP
12.
Check for 28 VDC on parking brake relay terminal B1 (Figure 14).
TERMINAL B1 (TOP)
POWER CABLE ASSEMBLY
W1CONNECTION
(LABELED 1070)FROM W1J1-A
1
A1
B1
X1
B3
A3
PARKING BRAKE
X2
RELAY
A2
B2
TERMINAL B2 (BOTTOM)
TO HDC CIRCUIT BREAKER
VIA LEAD ASSEMBLY
12496958(LABELED 1070)
B1 (HIDDEN)
B2 (PARTIALLY HIDDEN)
T01914HDC
Figure 14. Hydraulic Diagnostic Center (HDC) Power Cable Assembly W1 Connection to Parking Brake Relay.
CONDITION/INDICATION
Is 28 VDC present on parking brake relay terminal B1?
DECISION
YES - Go to Step (14).
NO - Go to Step (13).
STEP
13.
Check for 28 VDC on parking brake relay terminal B2.
CONDITION/INDICATION
Is 28 VDC present on parking brake relay terminal B2?
DECISION
YES - Replace parking brake relay (TM 5-2350-262-20).
NO - Go to Step (16).
03/15/2011Rel(1.8)root(tswp)wpno(T00019)