Civic L4-1.8L (2006)
Engine Control Module: Testing and Inspection
How to Troubleshoot Circuits At the ECM/PCM
How to Troubleshoot Circuits at the ECM/PCM Connectors
NOTE: The ECM/PCM overwrites data and monitors the EVAP system for up to 15 minutes after the ignition switch is turned OFF. Jumping the SCS
line after turning the ignition switch OFF cancels this function. Disconnecting the ECM/PCM during this function, without jumping the SCS line first,
can damage the ECM/PCM.
1. Jump the SCS line with the HDS.
2. Remove the cover (A).
3. Lift up the under-hood fuse/relay box (A).
4. Remove the expansion tank (B). Disconnect the ECM/PCM connectors (C), and probe the terminals from the terminal side of the connectors.
5. Check the terminal test port size, and select the suitable pin probe (male).
6. Connect one side of the patch cord (A) terminals to a commercially available digital multimeter (B), and connect the other side of the patch cord
terminals to a commercially available banana jack (Pomona Electronics Tool No. 3563 or equivalent) (C).
