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.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
![]() | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Go to "Signal Circuit Inspection" procedure. |
IG "OFF" and disconnect battery (-) terminal.
Disconnect MF SW and IPM connector.
Check resistance between one and another signal terminal of MF SW harness connector.
Specification : About ∞ Ω
Is the measured value within specification ?
![]() | ▶ Substitute with a known - good IPM and check for proper operation. If the problem is corrected, replace the IPM and go to "Verification of Vehicle Repair" procedure. ▶ Substitute with a known - good MF switch and check for proper operation. If the problem is corrected, replace the MF switch and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Check short in signal harness of light SW, and then, go to 'Verification of Vehicle Repair" procedure. |