W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to next step as below

Signal Circuit Inspection

1. Check for open or short to ground in signal circuit
(1) With ignition "OFF", disconnect the power steering switch.
(2) Ignition "ON" & Engine "OFF"
(3) Measure voltage between terminal 1 of the power steering switch harness connector and chassis ground
A. Specification: Approx. B+




(4) Is voltage within the specification ?
YES
1) Go to next step as below.
NO
1) Check for short to battery in signal circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure
2. Check for short to battery in signal circuit
(1) With ignition "OFF", disconnect ECM connector
(2) Ignition "ON" & Engine "OFF"
(3) Measure voltage between terminal 1 of the switch harness connector and chassis ground.
A. Specification: Approx. 0V




(4) Is voltage within the specification ?
YES
1) Go to Component Inspection.
NO
1) Check for short to battery in signal circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure.