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.

• PGM-FI main relay 1 FI_MAIN_RLY_CL- line short to ground
• PGM-FI main relay 1 FI_MAIN_RLY_OUT line short to power
• PGM-FI main relay 1 stuck on failure
• PCM internal circuit failure