Chrysler 300M 2002 Service Manual page 2493

DRIVEABILITY - NGC
P0113-INTAKE AIR TEMPERATURE SENSOR HIGH —
TEST
3 Turn the ignition off.
Disconnect the IAT harness connector.
Connect a jumper wire between the IAT Sensor Signal circuit and the Sensor ground
circuit in the IAT harness connector.
Ignition on, engine not running.
With the DRBIII , read IAT voltage.
Is the voltage below 1.0 volt?
Yes → Replace the IAT Sensor.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the IAT Sensor Signal circuit from the IAT Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the IAT Sensor Signal circuit.
No
5 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the Sensor ground circuit from the IAT Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open in the Sensor ground circuit.
No
6 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.
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.
64
Continued
APPLICABILITY
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