TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
3. ENGINE HIGH IDLE DOES NOT OPERATE.
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Multimeter (ANURM105C)
Engine turned off (TM 9-2320-279-10)
Tool Kit, General Mechanic's: Automotive
Parking brake applied (TM 9-2320-279-10)
(SC 5180-90-N26)
Wheels chocked (TM 9-2320-279-10)
Personnel Required
Two
START
1.
TEST OPTIONS
KNOWN INFO
Visual inspection.
Error Code, EC 09.
Does the engine high
idle operate at any
REASON FOR QUESTION
location (cab or
POSSIBLE PROBLEMS
remote)?
To isolate the location
Cab HIGH IDLE switch
in the circuit where fault
faulty.
exists.
PTO ENGAGE switch to
cab HIGH IDLE switch
wire faulty.
Wire no. 840 faulty.
Jumper wire no. 516
faulty.
Go to Step 5.
NO
Wire no. 516 faulty.
Remote linking harness
faulty.
Remote control unit
faulty.
Remote control cable
YES
faulty.
Cab control box faulty.
Linking harness faulty.
Junction box
harness faulty.
Cab control box wiring
faulty.
Change 1
