FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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C3: Check Amplifier Ground Continuity



NOTE: Disconnection of ALL connectors between the amplifier & the ECM or amplifier & the coils, for any bank, will cause either PI367 or PI368 to be flagged. Please ensure that ALL connectors are, or have been, correctly located before condemning an amplifier module.





Measure the resistance between EM029/009 & ground EM2AR

Is the resistance < 0.5 ohms?

Yes
Renew the amplifier module
Go to C4

No
Go to A11