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Symptom: P0107-MAP SENSOR VOLTAGE TOO LOW When Monitored and Set Condition: P0107-MAP SENSOR VOLTAGE TOO LOW When Monitored: Engine speed between 600 to 3500 RPM. TPS voltage less than 1.2 volts. Battery voltage greater than 10.4 volts. Set Condition: The MAP sensor signal voltage is below 0.0392 volt for 1.7 seconds. POSSIBLE CAUSES MAP SENSOR VOLTAGE BELOW .04 VOLTS (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND (F855) 5-VOLT SUPPLY CIRCUIT OPEN MAP SENSOR INTERNAL FAILURE (K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND (K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT PCM TEST ACTION APPLICABILITY 1 Turn the ignition on. t, read the MAP Sensor voltage. Is the voltage below 1.2 volts? All Yes → Go To 3 No → Go To 2 2 Start the engine. t, read the MAP Sensor voltage. Is the voltage below .04 volts? All Yes → Go To 3 No → Refer to the INTERMITTENT CONDITION symptom in the Driveability category. 3 Turn the ignition off. All Yes → Go To 4 No → Go To 7 39 DRIVEABILITY - SBEC |