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 399 (DATA COMMUNICATION SYSTEM)DIAGNOSTIC INFORMATION & 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 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | B1000: Electronic Control Unit (ECU) Performance |
| DTC B1004 | B1004: Keep Alive Memory (KAM) Reset |
| DTC B1007 | B1007: EEPROM Write Error |
| DTC B1009 | B1009: EEPROM Checksum Mismatch/Error |
| DTC U0001 | High Speed CAN Communication Bus |
| DTC U0073 | U0073: High Speed Communication Bus |
| DTC U0100-U0299 | U0100: Lost Communication With Engine Control Module (ECM) U0101: Lost Communication With Transmission Control Module (TCM) |
| DTC U1000 and U1255 | U1000: Class 2 Data Link U1255: Loss of Class 2 Communication |
| DTC U1001-U1254 | U1016: Lost Communication With ECM/PCM U1017: Lost Communication With Engine Control Module U1024: Lost Communication With Transmission Control Module U1026: Lost Communication With ATC/TCCM U1040: Lost Communication With Electronic Brake Control Module U1041: Lost Communication With Electronic Brake Control Module U1064: Lost Communication With Body Control Module (BCM) U1088: Lost Communication With Sensing and Diagnostic Module (SDM) U1096: Loss of IPC Communications U1097: Loss of DIC Communications U1098: Loss of HUD Communications U1099: Loss of HUD Communications U1111: Lost Communication With Chime Module U1128: Loss of IRC Communications U1129: Loss of AMP Communications U1133: Lost Communication With DVD Player U1137: Lost Communication With Digital Radio Receiver U1144: Loss of PHN Communications U1147: Lost Communication With Onstar U1151: Lost Communication With Onstar U1152: Lost Communications With HVAC Control System U1153: Lost Communication With Climate Control Panel U1160: Loss of DDM Communications U1161: Loss of PDM Serial Data U1162: Lost Communications With Convenience Control System U1166: Loss of MSM Communications U1167: Lost Communications With Rear Seat Audio/Rear HVAC U1173: Lost Communications With Moveable Roof Module U1176: Loss of RFA Communications U1192: Lost Communication With Vehicle Theft Deterrent |
| DTC U1300, U1301, or U1305 | U1300: Class 2 Data Link Low U1301: Class 2 Data Link High U1305: Class 2 Data Link High or Low |
| DTC U2100 | U2100: Controller Area Network (CAN) Bus Communication |
| DTC U2105-U2199 | U2105: Lost Communications With Engine Control System U2107: Lost Communications With Body Control System U2108: Lost Communications With ABS/TCS Control System |
RENDER: 1.0x
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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.