Possible Causes
- MAP Sensor Voltage Below 0.078 Volt
- (K6) 5-Volt Supply Circuit Shorted To Ground
- (K6) 5-Volt Supply Circuit Open
- MAP Sensor Internal Failure
- (K1) MAP Signal Circuit Shorted To Ground
- (K1) MAP Signal Circuit Shorted To (K4) Sensor Ground Circuit
- PCM (K6) 5-Volt Supply Circuit
- PCM MAP Sensor Signal Circuit