Self-Diagnostic System
WARNING: This page is about a different car, the 1998 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.
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/Powertrain 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 | ||
|---|---|---|---|
| DTC B2947 | Sensor Power Circuit Low | ||
| DTC B2948 | Sensor Power Circuit High | ||
| DTC B2957 | Sensor Data Circuit Low | ||
| DTC B2958 | Sensor Data Circuit High | ||
| DTC B2960 | Sensor Data Incorrect But Valid | ||
| DTC B3031 | Controller In Learn Mode | ||
| DTC 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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