JB3 Checking Wiring Harness (Air Suspension Control Module)

^ The air suspension control module has not entered Service Bay Diagnostics Functional Test mode and the following actions are required:

^ Make sure that STAR Tester is still plugged into air suspension diagnostic pigtail.

^ Make sure that STAR Tester is turned ON.

^ Release STAR test button to the up HOLD position. After five seconds depress STAR test button again so that it remains in the down TEST position. This will allow control module to enter Functional Test mode.

^ STAR Tester is displaying code:

31,32, 33, 34 or 35 -- GO to JB4.

Any other code -- REPEAT Service Bay Diagnostics and if still unable to enter Functional Test mode REPLACE air suspension control module.