ECU Relay Resistance Test
Using an ohmmeter, measure resistance between ECU connector terminals No. 1 and 8. See Figure
. If resistance is 50-100 ohms, go to next test. If resistance is not as specified, check wiring. If wiring is faulty, repair and retest. If wiring is okay, replace relay and retest. See Fig 1
.
Courtesy of VOLKSWAGEN UNITED STATES, INC.