Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition.
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.
Has a problem been found?
![]() | ▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Go to "Signal Circuit Inspection" procedure. |
Ignition "OFF" & Engine "OFF".
Disconnect clutch switch connector and HECU connector.
Measure resistance between signal terminal of the clutch switch harness connector and clutch switch signal terminal of the HECU harness connector.
Measure resistance between ground terminal of the clutch switch harness connector and chassis ground.
Specification : Below 1 ohm
Is the measured value within specifications?
![]() | ▶ Go to "Short Check" Procedure. |
![]() | ▶ Repair open in the circuit between clutch switch and HECU harness connector and then, go to "Verification of vehicle Repair" procedure. |
Ignition "OFF" & Engine "OFF".
Disconnect clutch switch connector and HECU connector.
Measure resistance between signal terminal of the clutch switch harness connector and chassis ground.
Specification : Infinite
Is the measured value within specifications?
![]() | ▶ Go to "Component Inspection" Procedure. |
![]() | ▶ Repair short in clutch switch circuit between clutch switch and HECU harness connector and then, go to "Verification of vehicle Repair" procedure. |