Symptom:
P0107-MAP SENSOR LOW
When Monitored and Set Condition:
P0107-MAP SENSOR LOW
When Monitored: Ignition on. TPS voltage less than 1.2 volts. Battery voltage greater
than 10 volts.
Set Condition: The MAP sensor signal voltage is less than 0.782 of a volt for 1.7 seconds.
One trip Fault.
POSSIBLE CAUSES
MAP SENSOR VOLTAGE BELOW .078 VOLTS
(K7) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K7) 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 (K7) 5 VOLT SUPPLY CIRCUIT
PCM (K1) MAP SENSOR SIGNAL CIRCUIT
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, read the MAP Sensor voltage.
Is the voltage below .078 of a volt?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
2 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K7) 5 volt Supply circuit in the MAP Sensor harness
connector.
Is the voltage between 4.75 to 5.2 volts?
All
Yes → Go To 3
No → Go To 7
55
DRIVEABILITY - NGC
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