IG "OFF".
Measure resistance between High signal terminal and Low signal terminal of PCM/ECM connector(PCM/ECM side).
Specification : Approx. 110~130Ω
Is the measured resistance within specification ?
![]() | ▶ Check for poor connection between PCM/ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Check PCM/ECM for contamination, deterioration, or damage. Substitute with a known-good PCM/ECM and check for proper operation. If the problem is corrected, replace PCM/ECM and then go to "Verification of Vehicle Repair" procedure. |