Indicator Light Circuit
Verify ATS indicator light operation. See appropriate INDICATOR LIGHT under TESTING ANTI-THEFT SYSTEM COMPONENTS . Turn ignition off. Disconnect ATS ECU connector. Connect negative ohmmeter lead to ECU terminal A9 (with power locks, Light Green/Red wire) or No. 16 (without power locks, Light Green/Red wire) and positive lead to ground. If continuity is not present, repair open in indicator light circuit harness or connectors. If continuity is present, replace ATS ECU and retest.