Self-Diagnostic System
Ensure all components are connected. Turn ignition switch to RUN position (engine off). Connect scan tool. Check if scan tool communicates with Vehicle Control Module (VCM/PCM). Check for PASSLOCK(R) DTCs. See DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS table. See DIAGNOSTIC TESTS .
DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS
| DTC | Definition | ||
|---|---|---|---|
| B2947 | Sensor Power Circuit Low | ||
| B2948 | Sensor Power Circuit High | ||
| B2957 | Sensor Data Circuit Low | ||
| B2958 | Sensor Data Circuit High | ||
| B2960 | Sensor Data Incorrect But Valid | ||
| B3031 | Controller In Learn Mode | ||
| B3033 | System Indicates Tamper | ||
| U1016 (1) | Loss of Class 2 Communication With VCM/PCM | ||
| U1255 (1) | Class 2 Communication Malfunction | ||
| U1301 (1) | Class 2 Data Link High | ||
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