FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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A2: Check Coil Supply



NOTE: Prior to this, or any other test, please ensure that all connectors are correctly located

NOTE: If B+ is not present at ALL connectors check fuse F18 & Ignition relay (#2)





With the appropriate bank A connector disconnected, measure the voltage between ground EM2AR (EM1AR) & in turn, PI018/001, PI019/001, PI020/001 & PI021/001, or

With the appropriate bank B connector disconnected, measure the voltage between ground EM2AR (EM1AR) & in turn, PI022/001, PI023/001, PI024/001 & PI025/001

Is the voltage B+?

Yes
Go to A3

No
Go to A5