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Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

CMP sensor B (bank 1) CAMEXB1 line open
CMP sensor B (bank 1) CAMEXB1 line short to power
CMP sensor B (bank 1) CAMEXB1 line short to ground
CMP sensor B (bank 1) VCC8 line open
CMP sensor B (bank 1) VCC8 line short to ground
CMP sensor B (bank 1) SG8 line open
CMP sensor B (bank 1) failure
PCM internal circuit failure