Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 687Get this manual

Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 687

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DIAGNOSTICS
Code 21 (3 of 3): Throttle Position (TP) Sensor Circuit
Step aIgnition OFFbConnect test light to battery positive (B+)9cTouch test light to harness terminal "C" (throttle posit