EL5 Wiring Harness Check (Circuit 428)

^ Using an analog ohmmeter, connect one lead to air suspension control module wiring harness connector Pin 8 (Circuit 428) and other to a known good chassis ground.

^ Is ohmmeter reading greater than 10,000 ohms?

YES -- Turn air suspension switch to OFF position. REPLACE air suspension control module. RECONNECT rear height sensor and REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes

NO -- SERVICE short to ground in wiring harness Circuit 428. RECONNECT rear height sensor, air suspension control module and REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes