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Symptom: *NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE POSSIBLE CAUSES REPLACE PDC FUSE FUSED B+ CIRCUIT SHORTED TO GROUND SKIM - FUSED B+ CIRCUIT SHORTED TO GROUND FUSED B+ CIRCUIT OPEN FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN GROUND CIRCUIT OPEN CCD BUS (+) CIRCUIT OPEN CCD BUS (-) CIRCUIT OPEN SENTRY KEY IMMOBILIZER MODULE TEST ACTION APPLICABILITY 1 Turn the ignition off. All Yes → No → 2 Turn the ignition off. All Yes → No → Refer to the wiring diagrams located in the service information to 3 Turn the ignition off. All Yes → Repair the Fused B+ circuit for a short to ground. No → Replace the Sentry Key Immobilizer Module. 68 COMMUNICATION |