Inpa Error 159 Jun 2026

Before assuming the DME is broken, check these three main causes, ordered from easiest to hardest:

The aftermarket adapter had no bridge between pin 17 (Battery+) and pin 20 (Ignition). The DME stayed in sleep mode. inpa error 159

The typically indicates a communication failure between your diagnostic software and the vehicle's hardware , often labeled as IFH-0009: NO RESPONSE FROM CONTROL UNIT . This error commonly occurs during the initialization phase or when attempting to read a specific module. Common Causes and Fixes Before assuming the DME is broken, check these