TM 10-3930-641-20
ELECTRICAL SYSTEMS TROUBLESHOOTING (CONT)
(Sheet 2 of 3)
PROBLEM NO. 26 (CONT)
NOTE: Battery voltage is checked to ground (see page 2-57).
ANSWER
REMARKS
YES
NO
STEP
QUESTION OR INSTRUCTION
Service brake ACTIVATED.
1
Is battery voltage present at stop light switch terminal where
3
2
Stop light switch is on brake valve.
Y/BR wire connects? See NOTE.
2
16 gage Y/BR wire from switch to yellow connector near trans-
mission is open. Repair/replace wire. See page 2-54.
Is battery voltage present at stop light switch terminal where
3
5
4
T wire connects?
4
Replace stop light switch.
Go on to Sheet 3
2-134