| 144-1 | SBU connection error | |
| Connection to the SBU could not be confirmed, possibly due to a defect in the BCU detection board | • Harness connection at IPU, BCU, SBU loose, broken, defective. • Spurious electrical noise on power supply line • IPU defective • BCU defective • SBU defective | |
| 144-2 | SBU serial communication error | |
| Poor SBU power supply caused by SIO, or BCU detection board defective. | • Harness connection at IPU, BCU, SBU loose, broken, defective. • Spurious electrical noise on power supply line • IPU defective • BCU defective • SBU defective | |
| 144-3 | SBU GASBU reset error | |
| SBU defective, BCU detection circuit defective. | • Harness connection at IPU, BCU, SBU loose, broken, defective. • Spurious electrical noise on power supply line • IPU defective • BCU defective • SBU defective | |
| 144-4 | SBU version error | |
| SBU defective, BCU detection circuit defective. | • Harness connection at IPU, BCU, SBU loose, broken, defective. • Spurious electrical noise on power supply line • IPU defective • BCU defective • SBU defective | |
error 144 .
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