▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
▶ Go to "Power Circuit Inspection" procedure.
Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
Has a problem been found?
| ▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "Power Circuit Inspection" procedure. |
Ignition "OFF".
Connect Scantool to Data Link Connector(DLC) and start engine.
Select "SCOPEMETER FUNCTION"on scantool and accelerate engine.
Measure output signal between terminal EPS CM harness connector and chassis ground with switching (A/C,headlight etc.).
Specification : Surge always must not happen when turn IG key ON, OFF with turn the electricity device ON, OFF.
Is the resistance measured within specifications?
| ▶ Go to "Ground Circuit Inspection" procedure. |
| ▶ Check for contact resistance in connections or open in power harness. Repair as necessary and then go to "Verification of Vehicle Repair" procedure. |
Ignition "OFF".
Disconnect EPS CM connector.
Measure resistance between ground terminal of the EPS CM harness connector and chassis ground.
Specification : Approx. 0 Ω
Is the resistance measured within specifications?
| ▶ Go to "Check for earthing in ground harness" as below. |
| ▶ Check for open or contact resistance in ground harness. Repair as necessary and then go to "Verification of Vehicle Repair" procedure. |
