Test E: No Communication With The Power Steering Control Module

Pinpoint Test E: No Communication With The Power Steering Control Module

Normal Operation
The power steering control module receives voltage through circuits 838 (LG/VT) and 601 (LB/PK) and ground from circuit 57 (BK). The power steering control module then communicates with the PCM through the CAN lines, circuits 1908 (WH) and 1909 (BK).

E1-E2:

E3:

CAUTION: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.

Possible Causes
^ Circuit 838 (LG/VT) open or short to ground
^ Circuit 601 (LB/PK) open or short to ground
^ Circuit 57 (BK). open
^ Fuse(s)
^ Power steering control module
^ PCM
^ Smart junction box (SJB)