Steering Control Module: Testing and Inspection

Fig. 29 ECU Connector Continuity Inspection.:

Fig. 30 ECU Connector Inspection w/Connector Disconnected.:

Fig. 31 ECU Connector Inspection w/Connector Connected.:

Fig. 32 Power Steering Motor Output Voltage Inspection.:

1. Ensure continuity between terminals GND and SGND, Fig. 29.
2. Disconnect wire harness side electrical connector, then inspect as shown in Fig. 30.
3. With wire harness side electrical connector connected, inspect as shown in Fig. 31.
4. Measure output voltage (M+) of power steering driver on power steering motor as shown, Fig. 32. Do not allow tester to contact anything other than terminals, a short between terminals and housing may cause blown fuse or incorrect test readings.