GE9 Wiring Harness Check (Circuit 845A)

^ Using an analog ohmmeter, connect one lead to Circuit 845A of the FIRM relay connector and the other lead to a known good chassis ground.

^ Is resistance reading greater than 10,000 ohms?

YES -- GO to GE1O.

NO -- SERVICE short to ground in actuator activation circuit. REPLACE SOFT and FIRM relays. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes