Auto-Deceleration Monitor Does Not Light Up, Or Does Not Go Out, While Auto-Deceleration Switch Is Operated - Komatsu PC88MR-10 Shop Manual

E-21 Auto-deceleration monitor does not light up, or does not go out,
while auto-deceleration switch is operated
Auto-deceleration monitor does not light up or does not go out while auto-deceleration switch
Failure
is operated.
Condition of signal of auto-decelerator switch can be checked with monitoring function.
Related
(Code: 04504)
information
No. Cause
Defective machine
1
monitor
PC88MR-10
Procedure, measuring location, criteria, and remarks
Machine monitor may be defective. (Since this is an internal defect,
troubleshooting cannot be performed.)
40 Troubleshooting
Troubleshooting of electrical system (E-mode)
(PC88MR-FFD-400-A-Z0-A)
40-409