FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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E17: Check B+ At O2 Sensor Heater Circuit









With EM010 and EM015 disconnected, measure the voltage between EM010/023 and EM015/001.

Is the voltage B+?

Yes

Remove link lead and reconnect all connectors.
GO to E18, E18: End

No
Check integrity of EMS fuse F14, EMS control relay (relay 1) is energized and all connections are made.
GO to E18, E18: End