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Sierra 3500 2WD V8-6.6L DSL Turbo
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A L L Diagnostic Trouble Codes ( DTC )
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Control Module U Code List
Control Module U Code List
Control Module U Code List
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all modules. Not all DTCs listed will be applicable to all vehicles.
U1000 - U0155:
U0156 - U0402:
U0402 - U1137:
U1153 - U1826:
U1827 - U2116:
U2117 - U2165:
U2166 - U2181: