Checking Starter Lock Switch (280 SL/8 With Automatic Transmission)
Remove connector from RPM switch and connect test lamp to terminal 6 and ground. With ignition turned on, test lamp should light up with selector lever in 2, 3, 4 and "R" positions.
Remove connector from RPM switch and connect test lamp to terminal 6 and ground. With ignition turned on, test lamp should light up with selector lever in 2, 3, 4 and "R" positions.