Possible Cause

Possible causes are:

• Connector or terminal malfunction
• MAP sensor malfunction
• MAP sensor signal circuit and MAP sensor ground circuit are shorted to each other
• Open circuit in Red/Black wire between MAP sensor 4-pin harness connector terminal "C" and PCM 30-pin harness connector terminal "2K"
• PCM malfunction
• Short circuit to ground in Yellow/Black wire between MAP sensor 4-pin harness connector terminal "D" and PCM 30-pin harness connector terminal "1J"