U1301 Diagnostic Trouble Code Discussion for March 2022
Class 2 Data Line Short To Voltage
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| Help Request | Posted | |
| 2003 GMC Sierra 3500 6.0L MIL Lamp on U1301: Class 2 Data Line Short To Voltage. loss of comms until you step on brake pedal than able to get codes |
March 16, 2022 |
