Dodge 2004 Neon SX2 Diagnostic Manual page 388

DRIVEABILITY - NGC
P0072-AMBIENT TEMP SENSOR LOW —
TEST
3 Turn the ignition off.
Disconnect the Ambient Air Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K145) AAT Signal circuit in the
Ambient Air Temperature Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the (K145) AAT Signal circuit.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Ambient Air Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (K145) AAT Signal circuit and the (K167) Sensor
ground circuit in the Ambient Air Temperature Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the (K4) Sensor ground shorted to the (K145) AAT Signal
→ Go To 5
No
5 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 - NGC.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Continued
52
APPLICABILITY
All
All
All