Fig. 65: Identifying PCM Harness Side Connector
Courtesy of MAZDA MOTORS CORP.
Open Circuit
If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the
wiring harness.
Front HO2S terminal A and PCM terminal 2AD
Front HO2S terminal B and PCM terminal 2Z
Front HO2S terminal C ignition relay
Front HO2S terminal D and PCM terminal 2BG
Short Circuit
If there is continuity in the following wiring harnesses, there is a short circuit. Repair or replace the
wiring harness.
Front HO2S terminal A and power supply
Front HO2S terminal A and body ground
Front HO2S terminal B and power supply
Front HO2S terminal B and body ground
Front HO2S terminal C and body ground
Front HO2S terminal D and power supply
Front HO2S terminal D and body ground
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
Microsoft
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