TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
22. PRESSURE SENSORS, PS1 / PS2, INOPERATIVE, ERROR CODES 26 AND 27,
(MODEL B ONLY).
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's: Automotive
BAP loaded on the CBT
(SC 5180-90-N26)
Engine turned off (TM 9-2320-279-10)
Parking brake applied (TM 9-2320-279-10)
Wheels chocked (TM 9-2320-279-10)
START
1.
TEST OPTIONS
KNOWN INFO
Is the resistance of the
Error Code(s), EC 26
ResistanceTest.
pressure sensor(s),
and/or EC 27.
(PS1) or (PS2) 3947
REASON FOR QUESTION
POSSIBLE PROBLEMS
ohms?
Resistance less than or
Pressure sensor faulty.
greater than the specifica-
Cab digital control box
tion indicates a faulty
faulty.
pressure sensor.
Cab interface wiring
harness faulty.
Digial controller wiring
harness faulty.
Remote control box faulty.
Digital control box faulty.
Replace faulty
pressure sensor
NO
YES
4-444.26
10
Change 1
