JA4 Wiring Harness Check (Circuit 150)

^ Using an analog ohmmeter, connect one lead to air suspension control module vehicle wiring harness connector Pin 3 (Circuit 150) and the other to Circuit 150A of VSS wiring harness connector.

^ Is ohmmeter reading less than 5 ohms?

YES -- INSTALL a new air suspension control module and drive vehicle again above 15 mph. REPEAT Drive Cycle Diagnostics to verify service.

NO -- SERVICE open in VSS Circuit 150. REPEAT Drive Cycle Diagnostics.

NOTE: Before proceeding, Code 55 must be cleared. To clear memory, turn air suspension switch in luggage compartment to OFF for at least 5 seconds. Turn air suspension switch ON and drive vehicle above 15 mph for at least 4 minutes.