Chrysler 300M 2002 Service Manual page 2483

DRIVEABILITY - NGC
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.
INTERMITTENT CONDITION
MAP SENSOR SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT
MAP SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
MAP SENSOR INTERNAL FAILURE
MAP SENSOR SIGNAL CIRCUIT OPEN
SENSOR GROUND CIRCUIT OPEN
PCM
TEST
1 Start the engine.
With the DRBIII , read the MAP Sensor voltage.
Is the voltage above 4.6 volts?
Yes → Go To 2
→ Go To 8
No
2 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the MAP Sensor Signal circuit and the 5 Volt Supply
circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the MAP Sensor Signal circuit for a short to the 5 Volt
→ Go To 3
No
POSSIBLE CAUSES
ACTION
Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
54
APPLICABILITY
All
All