FC10 Checking Wiring Harness (Circuit 428)

FC1O CHECKING WIRING HARNESS (CIRCUIT 428)

^ Turn air suspension switch to OFF position.

^ Disconnect air suspension control module connector.

^ Using an analog ohmmeter, connect one lead to air suspension control module wiring harness connector Pin 8 (Circuit 428) and other to Circuit 428 of rear height sensor vehicle wiring harness connector.

^ Is ohmmeter reading lees than 5 ohms?

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

NO -- Rear height sensor channel "B" Circuit 428 resistance is above acceptable limits. RECONNECT rear height sensor and REPEAT Service Bay Diagnostics after service is made.