Diagnostic information 2-77
5021-0XX
8 Check following cables for
continuity:
• I/O DCN18 pin 1 to rear
cover interlock switch pin
3
• I/O DCN18 pin 3 to top
cover interlock switch pin
3
• Top cover interlock
switch pin 1 to front
cover interlock switch pin
2
• Top cover interlock
switch pin 2 to rear cover
interlock switch pin 1
• LVPS ACN2 pin 2 to rear
cover interlock switch pin
2.
Are any cables defective?
Replace cable. Replace engine
controller board.
See “Engine
controller
board removal”
on page 4-55.
Step Questions / actions Yes No
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