EF2 Measure Circuit Resistance

^ Turn air suspension switch to OFF position. Disconnect air suspension control module connector. Using an analog ohmmeter, measure and record the following:

^ Connect positive lead of ohmmeter to wiring harness connector Pin 35 (Circuit 420) and negative lead to Pin 40 (Circuit 430G).

^ Connect positive lead of ohmmeter to wiring harness connector Pin 40 (Circuit 430G) and negative lead to Pin 35 (Circuit 420).

^ Is at least one of the two ohmmeter readings greater than 40 ohms?

YES -- Go to EF5

NO -- Go to EF4.