Dodge 2004 Neon SRT4 - Page 390

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the Ambient Air Temperature Sensor harness connector.
Connect a jumper wire between the (K145)AAT Signal circuit and the (K167) Sensor
ground circuit in the Ambient Air Temperature Sensor harness connector.
Ignition on, engine not running.
With the DRBIIIt, read Ambient Air Temperature Sensor voltage.
Is the voltage below 1.0 volt?
All
Yes → Replace the Ambient Air Temperature Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 4
4 Turn the ignition off.
Disconnect the Ambient Air Temperature 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 (K145) AAT Signal circuit from the Ambient Air
Temperature Sensor harness connector to the appropriate terminal of special tool
#8815.
Is the resistance below 5.0 ohms?
All
Yes → Go To 5
No → Repair the open in the (K145) AAT Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
5 Turn the ignition off.
Disconnect the Ambient Air Temperature 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 (K167) Sensor ground circuit from the Ambient Air
Temperature Sensor harness connector to the appropriate terminal of special tool
#8815.
Is the resistance below 5.0 ohms?
All
Yes → Go To 6
No → Repair the open in the (K4) Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
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.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
54
DRIVEABILITY - NGC
P0073-AMBIENT TEMP SENSOR HIGH — Continued