Ignition "OFF" & Engine "OFF".
Disconnect the DBC switch connector.
Press the DBC switch.
Measure resistance between power terminal and siganl terminal of the DBC switch connector.
Specification : Approx. below 1Ω
Is the measured value within specifications?
![]() | ▶ Fault is intermittent caused by poor connection in DBC switch harness and/or HECU's connector. Go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Substitute with a known-good DBC switch and check for proper operation. If problem is corrected, replace DBC switch and then go to "Verification of Vehicle Repair" procedure. |