Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 196 (DATA COMMUNICATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2006 Isuzu Ascender S, 5.3 M, 4WD
Diagnostic Code Index
2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | Electronic Control Unit (ECU) Performance |
| DTC B1004 | Keep Alive Memory (KAM) Reset |
| DTC B1007 | EEPROM Write Error |
| DTC B1009 | EEPROM Checksum Mismatch |
| DTC U0001 | This diagnostic procedure supports the following DTC: |
| DTC U0073 | Controller Area Network (CAN) Bus Communication |
| DTC U0100-U0299 | Lost Communication With Engine/Powertrain Control Module (ECM/PCM) Or Transmission Control Module (TCM) |
| DTC U1000 | Class 2 Data Link Malfunction |
| DTC U1001-U1254 | Various Control Module(s) Communication Malfunction(s) |
| DTC U1300, U1301 or U1305 (4.2L) | Class 2 Data Link Low Or High |
| DTC U1300, U1301 or U1305 (5.3L) | Class 2 Data Link Low Or High |
| DTC U2100 | High Speed CAN Communication Bus |
| DTC U2105-U2199 | Lost Communication With Engine Control Module (ECM) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.