Symptom:
P0108-MAP SENSOR HIGH
When Monitored and Set Condition:
P0108-MAP SENSOR HIGH
When Monitored: Engine speed between 600 to 3500 RPM. TP sensor voltage less than
1.2 volts for greater than 1.7 seconds. Battery voltage greater than 10 volts
Set Condition: The MAP sensor signal voltage is greater than 4.92 volts. One trip Fault.
POSSIBLE CAUSES
MAP SENSOR VOLTAGE ABOVE 4.9 VOLTS
(K1) MAP SIGNAL CIRCUIT SHORTED TO (K6) 5 VOLT SUPPLY CIRCUIT
(K1) MAP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
MAP SENSOR INTERNAL FAILURE
(K1) MAP SIGNAL CIRCUIT OPEN
(K4) SENSOR GROUND CIRCUIT OPEN
PCM
TEST ACTION APPLICABILITY
1 Start the engine.
With the DRBIIIt, read the MAP Sensor voltage.
Is the voltage above 4.9 volts?
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.
Disconnect the PCM harness connector.
Measure the resistance between the (K1) MAP Signal circuit and the (K6) 5 Volt
Supply circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes → Repair the (K1) MAP Signal circuit for a short to the (K6) 5 Volt
Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 3
56
DRIVEABILITY - NGC
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