Chrysler 300M 2002 Service Manual page 2477

DRIVEABILITY - NGC
P0106-MAP SENSOR PERFORMANCE —
TEST
3 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the 5 Volt Supply circuit in the MAP Sensor harness
connector.
Is the voltage between 4.5 to 5.2 volts?
Yes → Go To 4
→ Go To 8
No
4 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
With the DRBIII , monitor the MAP Sensor voltage.
Ignition on, engine not running.
Is the voltage above 1.2 volts?
Yes → Replace the MAP Sensor.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the MAP Sensor Signal circuit at the
MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the MAP Sensor Signal circuit.
→ Go To 6
No
6 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 Sensor
ground circuit in the MAP Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to Sensor ground in the MAP Sensor Signal
→ Go To 7
No
7 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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