CHECK GROUND CIRCUIT.

1) Turn the ignition switch to OFF.

2) Using a tester and test harness, check the resistance between terminals.

Connector & terminal

(B452) No. 1 — Chassis ground:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Check for poor contact of terminals in the power steering control module, and if there are no malfunctions, replace the power steering control module.

Repair the open circuit or poor contact of the harness between the power steering control module and chassis ground.