Need help....Fuel/Electronic Problems

Finally had a chance to get the codes. Let me know what ya'll think?

P0236 MAP Sensor Too high too long

P0562 Charging System volts to low

P1698 No Bus MSG Received from PCM

P0215 Inj Pump Control Circuit

P1689 No Com Between ECM & Inj Pump
 
Clean the MAP sensor, check the grounds and alternator output. You know the pump is bad so that should correct the 0215 and 1689. Advance or somewhere could probably check the charging system for you. Not sure about 1698, but I'm sure someone else will chime in. It is either 1693 or 1698 that is a companion code that shows up with the other codes. I'm leaning toward 1693.
 
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