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 connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Have any problems been found?
![]() | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Go to "Control Circuit Inspection" procedure. |
IG "OFF" & Disconnect Injector connector.
IG "ON".
Measure voltage between control terminal of Injector(High side) main harness connector on the intake manifold and chassis ground.
Measure voltage between control terminal of Injector(Low side) main harness connector on the intake manifold and chassis ground.
Specification : Injector
Is the measured voltage within specification?
![]() | ▶ Go to "Component Inspection" procedure. |
![]() | ▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure. |