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System Tests: Notes

NOTE: See SYSTEM INDEX  table to determine testing according to symptom.
SYMPTOM INDEX

Symptom Perform Test
No Communication With Passive Anti-Theft System Module A 
THEFT Indicator Never/Always Illuminates Or THEFT Indicator Does Not Prove Out B 
Vehicle Does Not Start (1)
Vehicle Starts Although THEFT Indicator Light Flashes Fault Code With Key In RUN (2)
(1) Using NGS tester, perform PATS self-test. Retrieve DTCs. If DTCs exist, perform appropriate DTC test. See PATS MODULE DIAGNOSTIC TROUBLE CODE INDEX  table under SELF-DIAGNOSTIC SYSTEM. If no DTCs exist, PATS system is operating properly at this time.
(2) Perform DTC U1147: FAULTY SCP LINK OR INCORRECT PCM CALIBRATION  under DIAGNOSTIC TESTS.
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