Reading Readiness Code
Readiness code is returned to "0 1 1 0 1 1 0 1" if DTC memory is erased, voltage supply to ECM is lost, or a new ECM is installed. To check readiness code, connect VAS 5051 or equivalent scan tool to DLC. DLC is located behind cover under left side of steering column. Turn ignition on. Using scan tool, select vehicle system "01- ENGINE ELECTRONICS", from selection No. 1, select diagnostic function "08 - READ MEASURED VALUE BLOCK". Enter display group MAX. INPUT VALUE = 255. Select function "086" in button field 2. Press "Q" button to confirm input. Using scan tool, observe display group 086 in display field 1. See Fig 1 and Fig 2 . Readiness code should display "0 0 0 0 0 0 0 0 0". If readiness code displays as specified, continue DTC testing or, testing is complete. If readiness code does not display as specified, generate readiness code. See GENERATING READINESS CODE .