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TM5-4120-376-14
4-22. JUNCTION BOX AND CONTROL MODULE ASSEMBLY/Inspect, Test, Replace (Cont)
LOCATION/ITEM
Removal:
3. Remove eight screws (77) eight flat washers (78) and eight lock nuts (79) securing wiring
harries-s (80) to junction box.
4. Remove one screw (81) one flat washer (82) one nut (83) and one clamp (84) securing wire
harness to junction box.
5. Tag and remove wires from terminals.
6. Remove wiring harness.
Test:
Relay K2
1. Apply
2. Using
A1-A2, B1-B2 and C1-C2.
.
external 28 VDC to terminals Xl
an ohmmeter or other continuity
and X2; positive to Xl and negative to X2.
testing device, check continuity between terminals
3. If continuity does not exist relay is defective.
4. Replace defective relay.
Relay K3
1. Apply external 28 VDC to terminals Xl
2. Using an ohmmeter or other continuity
A1-A2, B1-B2 and C1-C2.
and X2; positive to Xl and negative to X2.
testing device, check continuity between terminals
3. If continuity does not exist relay is defective.
4. Replace defective relay.
Relay K7
1. Apply external 28 VDC to terminals Xl and X2; positive to Xl and negative to X2.
2. Using an ohmmeter or other continuity testing device, check continuity between terminals
A1-A2, B1-B2 and C1-C2.
3. If continuity does not exist relay is defective.
4. Replace defective relay.
4-113
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