1. INSPECT GARAGE DOOR OPENER

(a) Press the switch and check that each red LED turns on.
If one or more of the switches does not turn on the LED, confirm normal operation of the fuse and wire harness, then replace the garage door opener.
2. INSPECT GARAGE DOOR OPENER REGISTRATION AND TRANSMITTING

HINT: Use the KENTMORE home link tester and a tester transmitter for this test. First erase the customer's transmitter code, and the register the tester transmitter code.
(a) Check if the tester transmitter code was successfully registered.
HINT: If the code cannot be registered, replace the garage door opener.

(b) Press the garage door opener switch that was registered to the tester transmitter. Check if the home link tester's green LED illuminates.
HINT: If the green LED does not illuminate, replace the garage door opener.
(c) When the inspection is complete, re-register the customer's transmitter code(s) again.
Registration
Vehicle control systemOverhaul
   1. REMOVE OIL PUMP RELIEF VALVE
(a) Remove the plug, spring and relief valve.
2. INSPECT OIL PUMP RELIEF VALVE
(a) Apply a light coat of engine oil to the oil pump relief valve
(b) Check that the valve falls smoothly into the valve hole by
its own weight.
If it does not, replace the relief ...