TB 9-2320-279-13&P-4
0024
WIRE 451
WIRE 1516A
TERMINAL 30
TERMINAL 86
WIRE 151-D
WIRE 145
TERMINAL 87
TERMINAL 85
RELAY
R10
ENGINE
ECM
988
916
A
419 509 439
B
901 900 952
C
417
D
451 556 557
E
F
G
528
524 115E
H
J
505 583 979
K
2
3
1
VIH
CONNECTOR
MC20
Figure 34.
4. Connect negative (-) probe of multimeter to wire 451 at engine harness connector MC20, terminal E1.
5. Multimeter should display a reading less than 200 ohms. Note reading.
CONDITION/INDICATION
Is continuity measured on wire 451 between high idle active relay R10, terminal 30 and engine harness connector
MC20, terminal E1?
DECISION
No - Test 32 - Is continuity measured on wire 451 between engine harness connector MC20 and cab harness
connector MC4?
Yes - Test 35 - Is continuity measured between wire 151-D at high idle active relay R10 connector, terminal 87
and engine harness connector MC21, terminal B?
